diff flys-backend/ChangeLog @ 3807:d73c43798a99 pre2.6-2011-11-04

merged flys-backend/pre2.6-2011-11-04
author Thomas Arendsen Hein <thomas@intevation.de>
date Fri, 28 Sep 2012 12:14:51 +0200
parents 9df06b88c079
children e9b0fd1de89d
line wrap: on
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-backend/ChangeLog	Fri Sep 28 12:14:51 2012 +0200
@@ -0,0 +1,2057 @@
+2011-11-01  Ingo Weinzierl <ingo@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/RiverAxisKm.java: New. Model class
+	  for 'river_axes_km' relation.
+
+	* src/main/java/de/intevation/flys/backend/SessionFactoryProvider.java:
+	  Added mapping for RiverAxisKm.
+
+2011-10-25  Bjoern Schilberg <bjoern.schilberg@intevation.de>
+
+	* doc/schema/oracle_create_user.sql:
+	  Added explizit TABLESPACE definition for the user.
+
+2011-10-25  Bjoern Schilberg <bjoern.schilberg@intevation.de>
+
+	* doc/schema/oracle_create_user.sql: 
+	  Adjusted oracle_create_user.sql script. Added USER SQL snippet to change
+	  tablespace to users.
+
+2011-10-05	Sascha L. Teichmann	<sascha.teichmann@intevation.de>:
+
+	* src/main/java/de/intevation/flys/utils/DateGuesser.java:
+	  New. Date guesser from desktop FLYS.
+
+	* src/main/java/de/intevation/flys/importer/parsers/WstParser.java:
+	  Try to parse the name of a WST column as a date and store
+	  the date into the database
+	  
+	* src/main/java/de/intevation/flys/importer/ImportWstColumn.java:
+	  Added code to store the date of the column in the database.
+
+2011-10-24  Bjoern Schilberg <bjoern.schilberg@intevation.de>
+
+	* doc/schema/postgresql-spatial.sql: 
+	  Adjusted geometry type for floodplain and hws in AddGeometryColumn.
+
+2011-10-19  Bjoern Schilberg <bjoern.schilberg@intevation.de>
+
+	* doc/schema/oracle.sql:
+	  Added missing views (wst_value_table,wst_w_values,wst_q_values).
+
+2011-10-18  Bjoern Schilberg <bjoern.schilberg@intevation.de>
+
+	* doc/schema/oracle.sql:
+	  Removed all CREATE OR REPLACE TRIGGER statements.
+
+2011-10-17  Bjoern Schilberg <bjoern.schilberg@intevation.de>
+
+	* doc/schema/oracle.sql:
+	  Adjusted NUMBER format for units, positions and cross_section_points tables.
+
+2011-10-10  Bjoern Schilberg <bjoern.schilberg@intevation.de>
+
+	* doc/schema/oracle.sql:
+	  Fix errors.
+
+2011-10-10  Bjoern Schilberg <bjoern.schilberg@intevation.de>
+
+	* doc/schema/oracle.sql:
+	  Adjust oracle schema [I382].
+
+2011-10-10  Felix Wolfsteller <felix.wolfsteller@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/ImportWst.java,
+	  src/main/java/de/intevation/flys/importer/ImportUnit.java:
+	  Removed obsolete imports.
+
+2011-10-05	Sascha L. Teichmann	<sascha.teichmann@intevation.de>:
+
+	* ChangeLog: Added database update statements.
+
+	To update existing databases:
+
+	    BEGIN;
+	      CREATE SEQUENCE UNITS_ID_SEQ;
+	      CREATE TABLE units (
+	        id   int PRIMARY KEY NOT NULL,
+	        name VARCHAR(32)     NOT NULL UNIQUE
+	      );
+	    ALTER TABLE rivers ADD COLUMN wst_unit_id int REFERENCES units(id);
+	    INSERT INTO units (id, name) VALUES (nextval('UNITS_ID_SEQ'), 'NN + m');
+	    INSERT INTO units (id, name) VALUES (nextval('UNITS_ID_SEQ'), 'NHN + m');
+	    UPDATE rivers SET wst_unit_id = (SELECT id FROM units WHERE name = 'NHN + m') WHERE name = 'Elbe';
+	    UPDATE rivers SET wst_unit_id = (SELECT id FROM units WHERE name = 'NN + m') WHERE name <> 'Elbe';
+	    ALTER TABLE rivers ALTER COLUMN wst_unit_id SET NOT NULL;
+	    COMMIT;
+
+2011-10-05  Ingo Weinzierl <ingo@intevation.de>
+
+	* contrib/dump-schema.sh: New. A small shell script that dumps the
+	  database schema of a given database to SQL.
+
+	* pom.xml: Added dependency for hibernate-spatial-oracle stuff.
+
+2011-10-04  Ingo Weinzierl <ingo@intevation.de>
+
+	* doc/schema/postgresql.sql: Removed unit column from wsts; added a
+	  wst_unit_id column to rivers. We decided to support a single elevation
+	  model for the whole river.
+
+	* src/main/java/de/intevation/flys/model/River.java: Added a WstUnit
+	  column.
+
+	* src/main/java/de/intevation/flys/model/Wst.java: Removed the Unit
+	  column.
+
+	* src/main/java/de/intevation/flys/importer/ImportWst.java: Provide a
+	  getUnit() method that allows querying the elevation unit for this wst.
+
+	* src/main/java/de/intevation/flys/importer/ImportUnit.java: Removed
+	  storeDependencies().
+
+	* src/main/java/de/intevation/flys/importer/ImportRiver.java: Save the
+	  Unit of the wst file or a default one into database before all other
+	  dependencies as well as the river itself is saved to database.
+
+2011-10-04  Ingo Weinzierl <ingo@intevation.de>
+
+	* doc/schema/postgresql.sql: Added a "units" table.
+
+	* src/main/java/de/intevation/flys/model/Unit.java: New. Model class that
+	  represents a unit.
+
+	* src/main/java/de/intevation/flys/importer/ImportUnit.java: New. Model
+	  class that is used to import units.
+
+	* src/main/java/de/intevation/flys/model/Wst.java: A Wst stores a Unit
+	  which references "units" table now.
+
+	* src/main/java/de/intevation/flys/importer/parsers/WstParser.java: Set
+	  units which have already been parsed on Wsts.
+
+	* src/main/java/de/intevation/flys/importer/ImportWst.java: Added setter
+	  method for Units and call storeDependencies() for ImportUnits.
+
+	* src/main/java/de/intevation/flys/backend/SessionFactoryProvider.java:
+	  Registered new model class Unit.
+
+2011-10-04  Ingo Weinzierl <ingo@intevation.de>
+
+	flys/issue333 (W-INFO / Berechnung Wasserspiegellage, Zuordnung Bezugspegel)
+
+	* src/main/java/de/intevation/flys/model/River.java: Modified
+	  determination of gauge based on a km range. River.determineGauge(double,
+	  double) will now return the gauge which matches the start km.
+
+2011-09-28  Felix Wolfsteller <felix.wolfsteller@intevation.de>
+
+	* src/main/java/de/intevation/flys/utils/StringUtil.java:
+	  (wWrap): New method (extracted from WaterlevelSelectState).
+
+2011-09-28  Felix Wolfsteller <felix.wolfsteller@intevation.de>
+
+	* src/main/java/de/intevation/flys/utils/StringUtil.java:
+	  (unbracket): New method (extracted from WaterlevelSelectState).
+
+2011-09-27	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/CrossSectionLine.java:
+	  Moved some logic from cross section demo app to this model.
+	
+2011-09-26  Ingo Weinzierl <ingo@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/CrossSectionTrack.java:
+	  Added new function that the nearest CrossSectionTrack of a river to a
+	  given kilometer.
+
+2011-09-23  Bjoern Schilberg <bjoern@intevation.de>
+
+	* doc/schema/postgresql-spatial.sql: 
+	  Added missing river_axes_km schema.
+	* doc/schema/oracle-spatial.sql:
+	  Added missing dem and lines schema.
+
+2011-09-22  Bjoern Schilberg <bjoern@intevation.de>
+
+	* doc/schema/postgresql-spatial.sql, doc/schema/oracle-spatial.sql:
+	  Harmonized oracle and postgresql spatial schema.
+
+2011-09-22  Bjoern Schilberg <bjoern@intevation.de>
+
+	* doc/schema/oracle-spatial.sql: Harmonized Extent for Saar and Mosel. Some cleanups.
+
+2011-09-22  Ingo Weinzierl <ingo@intevation.de>
+
+	* src/main/java/de/intevation/flys/backend/SessionFactoryProvider.java:
+	  Added the possibility to enable JMX (/MBean) support for hibernate. By
+	  default, this support is NOT enabled. To enable JMX support for
+	  hibernate, set the system property "flys.backend.enablejmx=true".
+
+2011-09-20  Bjoern Schilberg <bjoern@intevation.de>
+
+	* doc/schema/oracle_create_user.sql: Added right to create views.
+
+2011-09-20  Bjoern Schilberg <bjoern@intevation.de>
+
+	* doc/schema/oracle-spatial.sql: Generalized oracle spatial schema.
+
+2011-09-19  Ingo Weinzierl <ingo@intevation.de>
+
+	Tagged RELEASE 2.5
+
+	* Changes: Prepared changes for release.
+
+2011-09-16  Ingo Weinzierl <ingo@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/DGM.java: Added function to query
+	  a DGM by Id.
+
+2011-09-15  Bjoern Schilberg <bjoern@intevation.de>
+
+	*  pom.xml: Removed oracle dependency.
+
+2011-09-15  Bjoern Schilberg <bjoern@intevation.de>
+
+	*  doc/schema/oracle.sql: Added inital oracle schema.
+
+2011-09-14  Bjoern Schilberg <bjoern@intevation.de>
+
+	*  doc/schema/oracle-spatial_idx.sql: Added inital oracle-spatial_idx.sql
+	   script.
+
+2011-09-14  Bjoern Schilberg <bjoern@intevation.de>
+
+	*  doc/schema/oracle-spatial.sql: Deactivated spatial indexes.
+
+2011-09-14  Bjoern Schilberg <bjoern@intevation.de>
+
+	*  doc/schema/oracle_create_user.sql: Added inital oracle_create_user.sql
+	   script.
+
+2011-09-14  Bjoern Schilberg <bjoern@intevation.de>
+
+	*  doc/schema/oracle-spatial.sql: Added schema floodplain.
+
+2011-09-14  Bjoern Schilberg <bjoern@intevation.de>
+
+	*  doc/schema/oracle-spatial.sql: Added schema hws.
+
+2011-09-14  Bjoern Schilberg <bjoern@intevation.de>
+
+	*  doc/schema/oracle-spatial.sql: Added schema cross_section_tracks.
+
+2011-09-14  Bjoern Schilberg <bjoern@intevation.de>
+
+	*  doc/schema/oracle-spatial.sql: Added schema river_axes.
+
+2011-09-14  Bjoern Schilberg <bjoern@intevation.de>
+
+	*  doc/schema/oracle-spatial.sql: Added schema fixpoints.
+
+2011-09-14  Bjoern Schilberg <bjoern@intevation.de>
+
+	*  doc/schema/oracle-spatial.sql: Added schema buildings.
+
+2011-09-14  Bjoern Schilberg <bjoern@intevation.de>
+
+	*  doc/schema/oracle-spatial.sql: Fixed table river_axes_km.
+
+2011-09-13  Bjoern Schilberg <bjoern@intevation.de>
+
+	*  doc/schema/oracle-spatial.sql: Added initial oracle schemas.
+
+2011-09-12  Bjoern Schilberg <bjoern@intevation.de>
+	
+	* doc/schema/postgresql-spatial.sql: Added initial schemas for
+	  Hydrologie/Einzugsgebiete, Hydrologie/HW-Schutzanlagen, Hydrologie/Hydr.
+	  Grenzen/Linien, BfG/hauptoeff_*.shp, BfG/MNQ-*.shp,
+	  BfG/modellgrenze*.shp,  BfG/uferlinie.shp, BfG/vorland_*.shp,
+	  Hydrologie/Streckendaten, Hydrologie/UeSG/Berechnung,
+	  Hydrologie/UeSG/Messung
+
+2011-09-02  Ingo Weinzierl <ingo@intevation.de>
+
+	* doc/schema/postgresql-spatial.sql: Removed SERIALs from schema.
+	Auto-Increment is realized through SERIALs now.
+
+	* src/main/java/de/intevation/flys/model/DGM.java: The table for dem has
+	been renamed to 'dem' (before 'dgm').
+
+2011-09-01  Hans Plum <hans@intevation.de>
+
+	* doc/schema/postgresql-spatial.sql:
+	Hint for unifying table names: dgm -> dem
+
+2011-09-01  Hans Plum <hans@intevation.de>
+
+	* doc/schema/postgresql-spatial.sql:
+	Added mappings to existing data in file system (based on 
+	river Saar); added TODOs for missing tables/mappings
+
+2011-08-31  Ingo Weinzierl <ingo@intevation.de>
+
+	* doc/schema/postgresql-spatial.sql: New relation for floodplains (german
+	  "Talaue").
+
+	* src/main/java/de/intevation/flys/model/Floodplain.java: New. Model class
+	  that represents a floodplain.
+
+	* src/main/java/de/intevation/flys/backend/SessionFactoryProvider.java:
+	  Registered the Floodplain mapping.
+
+2011-08-31  Ingo Weinzierl <ingo@intevation.de>
+
+	* doc/schema/postgresql-spatial.sql: Added a relation for DGMs. Note, that
+	  no data of the DGM is stored in this relation, but only the file path to
+	  the DGM file.
+
+	* src/main/java/de/intevation/flys/model/DGM.java: New. This class provides
+	  information for a DGM (km range and file path).
+
+	* src/main/java/de/intevation/flys/backend/SessionFactoryProvider.java:
+	  Registered the DGM.
+
+2011-08-30  Ingo Weinzierl <ingo@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/CrossSectionTrack.java: New
+	  static function to retrieve all CrossSectionTracks of a specific river.
+
+2011-08-25  Ingo Weinzierl <ingo@intevation.de>
+
+	* src/main/java/de/intevation/flys/utils/FileTools.java: Moved to
+	  artifacts-common module.
+
+	* src/main/java/de/intevation/flys/importer/parsers/PegelGltParser.java,
+	  src/main/java/de/intevation/flys/importer/parsers/PRFParser.java,
+	  src/main/java/de/intevation/flys/importer/parsers/HYKParser.java,
+	  src/main/java/de/intevation/flys/importer/parsers/AnnotationsParser.java,
+	  src/main/java/de/intevation/flys/importer/parsers/InfoGewParser.java,
+	  src/main/java/de/intevation/flys/importer/ImportRiver.java,
+	  src/main/java/de/intevation/flys/importer/ImportGauge.java: Adjusted
+	  imports of FileTools.
+
+2011-08-25  Felix Wolfsteller <felix.wolfsteller@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/Gauge.java (getMainValues)
+	  (setMainValues):
+	  New method and mapping to get/set MainValues of a Gauge. Essentially
+	  developed by Sascha L. Teichmann.
+
+2011-08-22  Ingo Weinzierl <ingo@intevation.de>
+
+	* src/main/java/de/intevation/flys/backend/SessionFactoryProvider.java:
+	  Reverted the default db dialect to PostgreSQL - this has been changed to
+	  PostGIS by accident.
+	  Configure the dialect "org.hibernatespatial.postgis.PostgisDialect" to
+	  use the PostGIS stuff.
+
+2011-08-22  Ingo Weinzierl <ingo@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/RiverAxis.java: Added a function
+	  that returns the RiverAxis for a given River.
+
+	* src/main/java/de/intevation/flys/backend/SpatialInfo.java: Use the new
+	  function of RiverAxis to retrieve the RiverAxis.
+
+2011-08-18  Ingo Weinzierl <ingo@intevation.de>
+
+	* doc/schema/postgresql-spatial.sql: The PostGIS database schema for
+	  FLYS spatial data.
+
+	* src/main/java/de/intevation/flys/model/CrossSectionTrack.java,
+	  src/main/java/de/intevation/flys/model/RiverAxis.java,
+	  src/main/java/de/intevation/flys/model/Line.java,
+	  src/main/java/de/intevation/flys/model/Building.java,
+	  src/main/java/de/intevation/flys/model/Fixpoint.java: Model classes that
+	  represent FLYS spatial data.
+
+	* src/main/java/de/intevation/flys/backend/SessionFactoryProvider.java:
+	  Registered model classes.
+
+	* pom.xml: Added dependencies to HibernateSpatial and PostGIS.
+
+	* src/main/java/de/intevation/flys/backend/SpatialInfo.java,
+	  contrib/spatial-info.sh: A small demo application that prints out some
+	  information about spatial data of specific rivers. Modify the system
+	  property -Dflys.backend.spatial.river to get information of a river of
+	  your choice.
+
+2011-07-31	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	Re-enabled Hibernate schema dumps.
+
+	* src/main/java/de/intevation/flys/App.java: Removed old code
+	  and use new SessionFactoryProvider infrastructure.
+
+	* src/main/java/de/intevation/flys/backend/SessionFactoryProvider.java:
+	  Added methods to create db configurations without opening them.
+	  Useful for introspection only purposes.
+
+2011-07-31	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* pom.xml: Bumped Apache DBCP up to 1.4 to use the same version
+	  as artifact database.
+
+2011-07-28	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/ImporterSession.java:
+	  Make use of the LRU cache from artifacts common.
+
+2011-07-18	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql.sql: Added missing foreign key contraint on hyks table.
+	  To update existing databases:
+
+	  ALTER TABLE hyks ADD CONSTRAINT hyks_river_id_fkey FOREIGN KEY (river_id) REFERENCES rivers(id);
+
+2011-07-18	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/parsers/HYKParser.java:
+	  Check if zone coordinates in HYKs are swapped and warn the user.
+
+2011-07-18	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/HYK.java
+	  src/main/java/de/intevation/flys/importer/parsers/HYKParser.java,
+	  src/main/java/de/intevation/flys/importer/ImportHYKFormation.java,
+	  src/main/java/de/intevation/flys/importer/ImportHYKEntry.java,
+	  src/main/java/de/intevation/flys/importer/ImportHYK.java:
+	  Various small fixes and some extra logging.
+
+2011-07-18	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/Config.java: New.
+	  Central singleton to configure the Importer.
+	  Uses system properties by now:
+
+	  flys.backend.importer.dry.run: boolean
+	      default false. true: don't write to database.
+
+	  flys.backend.importer.annotation.types: String
+	      default unset. Filename of annotation type classifications.
+
+	  flys.backend.importer.skip.gauges: boolean
+	      default: false. true: don't parse/store *.glt, *.sta files
+
+	  flys.backend.importer.skip.annotations: boolean
+	      default: false. true: don't parse/store *.km files
+
+	  flys.backend.importer.skip.prfs: boolean
+	      default: false. true: don't parse/store *.prf files
+
+	  flys.backend.importer.skip.hyks: boolean
+	      default: false. true: don't parse/store *.hyk files
+
+	  flys.backend.importer.skip.wst: boolean
+	      default: false. true: don't parse/store river wst files
+
+	  flys.backend.importer.skip.extra.wsts: boolean
+	      default: false. true: don't parse/store extra *.zus, *.wst files
+
+	  flys.backend.importer.skip.fixations: boolean
+	      default: false. true: don't parse/store fixation *.wst files
+
+	  flys.backend.importer.skip.official.lines: boolean
+	      default: false. true: don't parse/store 'amtliche Linien' *.wst files
+
+	  flys.backend.importer.skip.flood.water: boolean
+	      default: false. true: don't parse/store 'HW-Marken' *.wst files
+
+	  flys.backend.importer.skip.flood.protection: boolean
+	      default: false. true: don't parse/store 'HW-Schutzanlagen' *.wst files
+
+2011-07-18  Ingo Weinzierl <ingo@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/HYKEntry.java: Fixed OrderBy
+	  clause.
+
+2011-07-18	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/ImportHYKFormation.java,
+	  src/main/java/de/intevation/flys/importer/ImportHYKFlowZone.java,
+	  src/main/java/de/intevation/flys/importer/ImportHYKEntry.java,
+	  src/main/java/de/intevation/flys/importer/ImportRiver.java,
+	  src/main/java/de/intevation/flys/importer/ImportHYK.java:
+	  Store HYK data structures to database. Needs testing.
+
+2011-07-18	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/ImportRiver.java:
+	  Parse the HYKs from the importer. TODO: Store them in database.
+
+2011-07-18	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/parsers/HYKParser.java:
+	  Create data structures while parsing.
+
+	* src/main/java/de/intevation/flys/importer/ImportHYKFormation.java,
+	  src/main/java/de/intevation/flys/importer/ImportHYK.java: Added
+	  getters/setters to ease model wiring.
+
+2011-07-17	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/ImportHYKFormation.java,
+	  src/main/java/de/intevation/flys/importer/ImportHYKFlowZone.java,
+	  src/main/java/de/intevation/flys/importer/ImportHYKEntry.java,
+	  src/main/java/de/intevation/flys/importer/ImportHYK.java: New.
+	  Importer models for HYKs.
+
+2011-07-17	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql.sql: Each entry in a HYK can have
+	  an optional 'Peilungsjahr' (measure) not only the whole HYK.
+	  To update existing databases:
+	  BEGIN;
+	    ALTER TABLE hyks DROP COLUMN measure;
+	    ALTER TABLE hyk_entries ADD COLUMN measure TIMESTAMP;
+	  COMMIT;
+
+	  * src/main/java/de/intevation/flys/model/HYKEntry.java,
+	    src/main/java/de/intevation/flys/model/HYK.java:
+	    Adjusted Hibernate models.
+
+2011-07-17	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/parsers/HYKParser.java:
+	  Added callback mechanism and recursive file search like in the PRF parser.
+	  All BfG-HYK files seem to parse correctly now. TODO: Build the data structures.
+
+	* src/main/java/de/intevation/flys/importer/parsers/PRFParser.java:
+	  Added x.canRead() before accepting files for parsing.
+
+2011-07-15	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/parsers/HYKParser.java:
+	  Initial version of the HYK parser. Not ready, yet.
+
+	* src/main/java/de/intevation/flys/importer/ImportHYKFlowZoneType.java:
+	  Importer model for HYK flow zone types.
+
+2011-07-15	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql.sql: Argh! Added distance_{vl|hf|vr} to
+	  wrong table.
+	  To update existing databases:
+	  BEGIN;
+	    ALTER TABLE hyk_entries DROP COLUMN distance_vl;
+	    ALTER TABLE hyk_entries DROP COLUMN distance_hf;
+	    ALTER TABLE hyk_entries DROP COLUMN distance_vr;
+	    ALTER TABLE hyk_formations ADD COLUMN distance_vl NUMERIC NOT NULL;
+	    ALTER TABLE hyk_formations ADD COLUMN distance_hf NUMERIC NOT NULL;
+	    ALTER TABLE hyk_formations ADD COLUMN distance_vr NUMERIC NOT NULL;
+	  COMMIT;
+
+	* src/main/java/de/intevation/flys/model/HYKFormation.java,
+	  src/main/java/de/intevation/flys/model/HYKEntry.java:
+	  Adjusted Hibernate models.
+
+2011-07-15	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/utils/FileTools.java: Added method
+	  walkTree() to traverse a directory tree. To be reused in HYK parser.
+
+	* src/main/java/de/intevation/flys/importer/parsers/PRFParser.java:
+	  Uses the FileTools.walkTree() method now to find all PRF file.
+
+2011-07-15	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql.sql: Added missing columns.
+	  To update existing databases:
+	  BEGIN;
+	    ALTER TABLE hyks ADD COLUMN measure TIMESTAMP;
+	    ALTER TABLE hyk_entries ADD COLUMN distance_vl NUMERIC NOT NULL;
+	    ALTER TABLE hyk_entries ADD COLUMN distance_hf NUMERIC NOT NULL;
+	    ALTER TABLE hyk_entries ADD COLUMN distance_vr NUMERIC NOT NULL;
+	  COMMIT;
+
+	* src/main/java/de/intevation/flys/model/HYKEntry.java,
+	  src/main/java/de/intevation/flys/model/HYK.java:
+	  Adjusted Hibernate models.
+
+2011-07-15	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/parsers/*.java:
+	  New package. Moved the file parsers (*.gew, *.sta, *.at, *.glt, *.prf, *.km, *.wst)
+	  into this package.
+
+	* src/main/java/de/intevation/flys/importer/*.java: Adjusted the imports.
+
+2011-07-15	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/HYKFormation.java,
+	  src/main/java/de/intevation/flys/model/HYKEntry.java,
+	  src/main/java/de/intevation/flys/model/HYKFlowZone.java,
+	  src/main/java/de/intevation/flys/model/HYKFlowZoneType.java,
+	  src/main/java/de/intevation/flys/model/HYK.java: New. The hibernate models
+	  for the HYK structures.
+
+	* src/main/java/de/intevation/flys/backend/SessionFactoryProvider.java:
+	  Registered new models.
+
+	* src/main/java/de/intevation/flys/model/CrossSection.java: Added
+	  'order by' annotation for fetching the cross section lines.
+
+2011-07-15	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql.sql: Added structures for HYKs "Hydraulische Kenngroessen"
+	  To update existing databases:
+
+	  BEGIN;
+	    CREATE SEQUENCE HYKS_ID_SEQ;
+	    CREATE TABLE hyks (
+	        id          int PRIMARY KEY NOT NULL,
+	        river_id    int             NOT NULL,
+	        description VARCHAR(256)    NOT NULL
+	    );
+	    
+	    CREATE SEQUENCE HYK_ENTRIES_ID_SEQ;
+	    CREATE TABLE hyk_entries (
+	        id     int PRIMARY KEY NOT NULL,
+	        hyk_id int             NOT NULL REFERENCES hyks(id),
+	        km     NUMERIC         NOT NULL,
+	        UNIQUE (hyk_id, km)
+	    );
+	    
+	    CREATE SEQUENCE HYK_FORMATIONS_ID_SEQ;
+	    CREATE TABLE hyk_formations (
+	        id            int PRIMARY KEY NOT NULL,
+	        formation_num int             NOT NULL DEFAULT 0,
+	        hyk_entry_id  int             NOT NULL REFERENCES hyk_entries(id),
+	        top           NUMERIC         NOT NULL,
+	        bottom        NUMERIC         NOT NULL,
+	        UNIQUE (hyk_entry_id, formation_num)
+	    );
+	    
+	    CREATE SEQUENCE HYK_FLOW_ZONE_TYPES_ID_SEQ;
+	    CREATE TABLE hyk_flow_zone_types (
+	        id          int PRIMARY KEY NOT NULL,
+	        name        VARCHAR(50)     NOT NULL UNIQUE,
+	        description VARCHAR(256)
+	    );
+	    
+	    CREATE SEQUENCE HYK_FLOW_ZONES_ID_SEQ;
+	    CREATE TABLE hyk_flow_zones (
+	        id           int PRIMARY KEY NOT NULL,
+	        formation_id int             NOT NULL REFERENCES hyk_formations(id),
+	        type_id      int             NOT NULL REFERENCES hyk_flow_zone_types(id),
+	        a            NUMERIC         NOT NULL,
+	        b            NUMERIC         NOT NULL,
+	        CHECK (a <= b)
+	    );
+	  COMMIT;
+
+2011-07-13	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* pom.xml: Bumped Hibernate up to 3.6.5.
+
+2011-07-11	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/utils/FileTools.java: Argh!
+	  Forget to call the file hashing so only the file lengths were
+	  compared.
+
+2011-07-11	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/utils/FileTools.java:
+	  Added a class HashedFile to compare files by there length
+	  and a message digest. Digest can be set with system property
+	  "flys.backend.file.cmp.digest" and defaults to MD5. Useful to
+	  detect file duplicates.
+
+	* src/main/java/de/intevation/flys/importer/PRFParser.java: Added
+	  method prfAccept(File) to callback to check if a found PRF file
+	  should be parsed. Useful to prevent parsing file duplicates.
+
+	* src/main/java/de/intevation/flys/importer/ImportRiver.java:
+	  Use the HashedFile and the PRFParser.Callback to prevent
+	  parsing of PRF duplicates.
+
+2011-07-08	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql.sql: Misspelled sequence.
+	  To update existing databases:
+
+	    DROP SEQUENCE CROSS_SECTION_LINES_SEQ;
+		CREATE SEQUENCE CROSS_SECTION_LINES_ID_SEQ;
+
+	* src/main/java/de/intevation/flys/importer/ImportCrossSection.java:
+	  Added some logging because importing is slow.
+
+	* src/main/java/de/intevation/flys/importer/ImportCrossSectionLine.java:
+	  Prevent NPE if a cross section line from db has no points.
+
+2011-07-08	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	Parse all PRFs in all subfolders of a river and store them
+	as cross sections into the database. Needs testing!
+
+	* src/main/java/de/intevation/flys/importer/ImportCrossSection.java,
+	  src/main/java/de/intevation/flys/importer/ImportCrossSectionLine.java:
+	  New. Importer models for cross sections.
+
+	* src/main/java/de/intevation/flys/importer/XY.java:
+	  New. Made top level class from inner PRFParser.XY.
+
+	* src/main/java/de/intevation/flys/importer/PRFParser.java:
+	  Moved out XY class. Renamed callback.
+
+	* src/main/java/de/intevation/flys/model/CrossSection.java,
+	  src/main/java/de/intevation/flys/model/CrossSectionLine.java,
+	  src/main/java/de/intevation/flys/model/CrossSectionPoint.java,
+	  src/main/java/de/intevation/flys/importer/ImportTimeInterval.java:
+	  Added convinience constructors.
+
+	* src/main/java/de/intevation/flys/importer/ImportRiver.java:
+	  Parse and store cross sections into database.
+
+2011-07-07	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql.sql: Introduced a new table cross_section_line
+	  holding the km of a set of points.
+
+	* src/main/java/de/intevation/flys/model/CrossSectionLine.java:
+	  New. Model for a single line of a "Querprofil".
+
+	* src/main/java/de/intevation/flys/model/CrossSection.java: Removed
+	  'km' and 'points' they are part of the line now.
+
+	* src/main/java/de/intevation/flys/model/CrossSectionPoint.java:
+	  They reference to the containing line now.
+
+	* src/main/java/de/intevation/flys/backend/SessionFactoryProvider.java:
+	  Registered new model.
+
+	  To update existing databases:
+	  BEGIN;
+	      DROP SEQUENCE CROSS_SECTIONS_ID_SEQ;
+	      DROP SEQUENCE CROSS_SECTION_POINTS_ID_SEQ;
+	      DROP TABLE cross_section_points;
+	      DROP TABLE cross_sections;
+	      CREATE SEQUENCE CROSS_SECTIONS_ID_SEQ;
+	      CREATE TABLE cross_sections (
+	          id               int PRIMARY KEY NOT NULL,
+	          river_id         int             NOT NULL REFERENCES rivers(id),
+	          time_interval_id int                      REFERENCES time_intervals(id),
+	          description      VARCHAR(256)
+	      );
+	      CREATE SEQUENCE CROSS_SECTION_LINES_SEQ;
+	      CREATE TABLE cross_section_lines (
+	          id               int PRIMARY KEY NOT NULL,
+	          km               NUMERIC         NOT NULL,
+	          cross_section_id int             NOT NULL REFERENCES cross_sections(id),
+	          UNIQUE (km, cross_section_id)
+	      );
+	      CREATE SEQUENCE CROSS_SECTION_POINTS_ID_SEQ;
+	      CREATE TABLE cross_section_points (
+	          id                    int PRIMARY KEY NOT NULL,
+	          cross_section_line_id int             NOT NULL REFERENCES cross_section_lines(id),
+	          col_pos               int             NOT NULL,
+	          x                     NUMERIC         NOT NULL,
+	          y                     NUMERIC         NOT NULL,
+	          UNIQUE (cross_section_line_id, col_pos)
+	      );
+	  COMMIT;
+
+2011-07-07	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql.sql: Dropped constraint that enforces the
+	  uniqueness of km and river. This is violated because there are
+	  more than one sounding in different year at the same km of a river.
+	  Added column 'description' to the cross section table to make it
+	  human readable.
+
+	  To update existing databases:
+
+		ALTER TABLE cross_sections DROP CONSTRAINT cross_sections_km_key;
+		ALTER TABLE cross_sections ADD COLUMN description VARCHAR(256);
+
+	* src/main/java/de/intevation/flys/model/CrossSection.java:
+	  Added the description column to the Hibernate model.
+	
+2011-07-07	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql.sql: Dropped constraint that enforces the
+	  uniqueness of x in a "Querprofil-Spur". There are vertical lines
+	  in the soundings so this constraint is violated.
+
+	  To update existing databases:
+	
+		ALTER TABLE cross_section_points DROP CONSTRAINT cross_section_points_cross_section_id_key2;
+
+2011-07-07	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/PRFParser.java:
+	  Added a callback to be called from parsePRFs() if
+	  a PRF was parsed successfully. Useful to scan whole
+	  sub directories for PRF files.
+
+2011-07-07	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/PRFParser.java:
+	  Extract the year of sounding from file names. If not found
+	  from the name of th containing directory. Description is made
+	  of file name and parent directory file name.
+
+2011-07-07	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/PRFParser.java:
+	  Extracted the data. All BfG PRFs are parsed correctly, now.
+
+2011-07-07	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/PRFParser.java:
+	  Extract km from lines. TODO: extract data.
+
+2011-07-06	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/PRFParser.java: New.
+	  Parser for PRF files. TODO extra data and station from data lines.
+
+2011-07-06	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/Point3d.java: Deleted.
+	  Not needed (braindead).
+
+	* src/main/java/de/intevation/flys/model/CrossSectionPoint.java:
+	  Directly store the x/y values now.
+
+	* src/main/java/de/intevation/flys/backend/SessionFactoryProvider.java:
+	  Removed registration of Point3d.
+
+	To update existing databases:
+
+	BEGIN;
+	  ALTER TABLE cross_section_points DROP COLUMN point3d_id;
+	  DROP SEQUENCE POINTS3D_ID_SEQ;
+	  DROP TABLE points3d;
+	  ALTER TABLE cross_section_points ADD COLUMN x NUMERIC NOT NULL;
+	  ALTER TABLE cross_section_points ADD COLUMN y NUMERIC NOT NULL;
+	  ALTER TABLE cross_section_points ADD CONSTRAINT
+		cross_section_points_cross_section_id_key2 UNIQUE (cross_section_id, x);
+	COMMIT;
+
+2011-07-06	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/CrossSection.java,
+	  src/main/java/de/intevation/flys/model/CrossSectionPoint.java:
+	  New. Hibernate models for cross-sections and their forming points.
+
+	* src/main/java/de/intevation/flys/backend/SessionFactoryProvider.java:
+	  Registered the new models.
+
+2011-07-06	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/Point3d.java: New. point3d model
+	* src/main/java/de/intevation/flys/backend/SessionFactoryProvider.java:
+	  Registered point3d model.
+
+2011-07-06	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql.sql: Add relations for cross sections.
+	  To update existing databases:
+	     BEGIN;
+	     	
+	     CREATE SEQUENCE CROSS_SECTIONS_ID_SEQ;
+	     CREATE TABLE cross_sections (
+	         id               int PRIMARY KEY NOT NULL,
+	         km               NUMERIC         NOT NULL,
+	         river_id         int             NOT NULL REFERENCES rivers(id),
+	         time_interval_id int             REFERENCES time_intervals(id),
+	         UNIQUE (km, river_id)
+	     );
+	     
+	     CREATE SEQUENCE POINTS3D_ID_SEQ;
+	     CREATE TABLE points3d (
+	         id int     PRIMARY KEY NOT NULL,
+	         x  NUMERIC NOT NULL,
+	         y  NUMERIC NOT NULL,
+	         z  NUMERIC NOT NULL
+	     );
+	     
+	     CREATE SEQUENCE CROSS_SECTION_POINTS_ID_SEQ;
+	     CREATE TABLE cross_section_points (
+	         id               int PRIMARY KEY NOT NULL,
+	         cross_section_id int NOT NULL REFERENCES cross_sections(id),
+	         point3d_id       int NOT NULL REFERENCES points3d(id),
+	         col_pos          int NOT NULL,
+	         UNIQUE (cross_section_id, point3d_id, col_pos),
+	         UNIQUE (cross_section_id, col_pos)
+	     );
+	     
+	     COMMIT;
+
+2011-06-28  Ingo Weinzierl <ingo@intevation.de>
+
+	Tagged RELEASE 2.4
+
+2011-06-27  Ingo Weinzierl <ingo@intevation.de>
+
+	* Changes: Prepared changes for the upcoming release.
+
+2011-06-26	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/AnnotationsParser.java,
+	  src/main/java/de/intevation/flys/importer/AnnotationClassifier.java,
+	  src/main/java/de/intevation/flys/importer/AtFileParser.java,
+	  src/main/java/de/intevation/flys/importer/ValueKey.java,
+	  src/main/java/de/intevation/flys/importer/WstParser.java:
+	  Removed trailing whitespace.
+
+2011-06-26	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/AnnotationClassifier.java:
+	  Removed superfluous imports.
+
+2011-06-26	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/River.java:
+	  Added a method maxOverlap to determine the gauge which has
+	  the max common length to a given interval. This is for
+	  numerical stability in slightly overlapping gauge ranges.
+
+2011-06-26	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/River.java: When
+	looking up a gauge by km containment use precision of 1e-6.
+
+2011-06-22	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/River.java:
+	  Added method to find gauge by its name.
+
+2011-06-19	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/annotation-types.xml: Fixed some rules.
+
+	* src/main/java/de/intevation/flys/importer/Importer.java,
+	  src/main/java/de/intevation/flys/importer/InfoGewParser.java,
+	  src/main/java/de/intevation/flys/importer/ImportRiver.java:
+	  Call the right constructors now.
+
+	* src/main/java/de/intevation/flys/importer/ImportAnnotationType.java:
+	  Added getter/setter for name property.
+
+	* src/main/java/de/intevation/flys/importer/AnnotationsParser.java:
+	  Print duplicated at WARN level not as DEBUG.
+
+	* src/main/java/de/intevation/flys/importer/AnnotationClassifier.java:
+	  Fixed XPath expression to build the internal lookup structures
+	  correctly.
+
+2011-06-19	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	Added classification of annotation types. Needs testing!
+
+	* doc/annotation-types.xml: New. Rules to classify the different
+	  types of annotations. The classification works like this:
+
+	  There are unique types like 'Bruecke', 'Pegel' and so on.
+	  They are defined in the /annotation/type section and
+	  identified by their name. One of the types can be set 
+	  as the default type if no rule applies.
+
+	  In the /annotation/pattern section are two types of pattern.
+
+	  1 - file pattern: If a KM file is opened its filename is
+	      matched against the regular expressions of these
+		  patterns. If a match is found the corresponding type
+		  is used as the default type in the open file.
+		  If no match is found the global default type is used
+		  as the default type.
+
+	  2 - line patterns: For each line of an open KM file these
+	      patterns are applied to find a match. If a match is
+		  found the corresponding type is used as the type of
+		  the annotation. If no match is found the default
+		  file default is assumed to be the right type. For
+		  the file default see 1.
+
+	* src/main/java/de/intevation/flys/importer/Importer.java:
+	  To activate the annotation type classification set
+	  the system property
+
+	      'flys.backend.importer.annotation.types'
+
+	  to the path of a XML looking like the annotation-types.xml
+	  file. If the system property is not set no classification
+	  is done.
+
+	* src/main/java/de/intevation/flys/importer/AnnotationClassifier.java:
+	  New. Implements the classification.
+	  
+	* src/main/java/de/intevation/flys/importer/AnnotationsParser.java,
+	  src/main/java/de/intevation/flys/importer/InfoGewParser.java,
+	  src/main/java/de/intevation/flys/importer/ImportRiver.java:
+	  Looped through the annotation type classification.
+
+2011-06-18	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/River.java:
+	  Added method to find gauge by a position lying in its range.
+
+2011-06-14	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	First part of flys/issue18
+
+	* doc/schema/postgresql.sql: Add new table 'annotation_types'.
+	  To update existing databases:
+	    BEGIN;
+	      CREATE SEQUENCE ANNOTATION_TYPES_ID_SEQ;
+	      CREATE TABLE annotation_types (
+	          id    int PRIMARY KEY NOT NULL,
+	          name  VARCHAR(256)    NOT NULL UNIQUE
+	      );
+		  ALTER TABLE annotations ADD COLUMN type_id int REFERENCES annotation_types(id);
+	    COMMIT;
+
+	* doc/schema/postgresql-cleanup.sql: Removed. Hopeless out-dated.
+
+	* src/main/java/de/intevation/flys/model/AnnotationType.java:
+	  New. Hibernate model to access the type.
+
+	* src/main/java/de/intevation/flys/backend/SessionFactoryProvider.java:
+	  Register the new backend type.
+
+	* src/main/java/de/intevation/flys/model/Annotation.java:
+	  References the annotation type.
+
+	* src/main/java/de/intevation/flys/importer/ImportAnnotationType.java:
+	  New. Model to help import the annotation type.
+
+	* src/main/java/de/intevation/flys/importer/ImportAnnotation.java:
+	  Uses the import type.
+
+	* src/main/java/de/intevation/flys/importer/AnnotationsParser.java:
+	  Set the annotation type to 'null'. TODO: Do the classification!
+
+2011-06-14	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/AtFileParser.java:
+	  Fix for flys/issue110. start index was shifted by one.
+
+2011-06-14	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/ImportAnnotation.java:
+	  Forgot to store reference to edge.
+
+2011-06-14	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	 * src/main/java/de/intevation/flys/backend/SessionFactoryProvider.java:
+	   Register backend model.
+
+	 * src/main/java/de/intevation/flys/importer/ImportEdge.java: New. Model
+	   for importing the edges.
+
+	 * src/main/java/de/intevation/flys/importer/AnnotationsParser.java:
+	   Parses the edges of an annotation, too.
+
+2011-06-14	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql.sql: Added table edges to model 'Kanten' of an annotation.
+	  To update existing databases:
+	    BEGIN;
+	      CREATE SEQUENCE EDGES_ID_SEQ;
+	      CREATE TABLE edges (
+	        id     int PRIMARY KEY NOT NULL,
+	        top    NUMERIC,
+	        bottom NUMERIC);
+	      ALTER TABLE annotations ADD COLUMN edge_id int REFERENCES edges(id);
+	    COMMIT;
+
+	* src/main/java/de/intevation/flys/model/Edge.java: New. A 'Kanten'-Model.
+	* src/main/java/de/intevation/flys/model/Annotation.java: References the
+	  edges.
+	
+2011-06-08	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/River.java:
+	  Added method to find gauge only by station position.
+
+2011-05-24	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/River.java:
+	  Make search for gauges independent of from/to order.
+
+2011-05-24	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql.sql: Added a new view to select qs of a WST.
+	  To update existing databases:
+
+	    CREATE VIEW wst_q_values AS
+	        SELECT wc.position AS column_pos,
+	               wqr.q       AS q, 
+	               r.a         AS a, 
+	               r.b         AS b,
+	               wc.wst_id   AS wst_id
+	        FROM wst_column_q_ranges wcqr
+	        JOIN wst_q_ranges wqr ON wcqr.wst_q_range_id = wqr.id
+	        JOIN ranges r         ON wqr.range_id        = r.id
+	        JOIN wst_columns wc   ON wcqr.wst_column_id  = wc.id
+	        ORDER BY wc.position, wcqr.wst_column_id, r.a;	  
+
+2011-05-24	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql.sql: Added a new view to select ws of a WST.
+	  To update existing databases:
+
+	    CREATE VIEW wst_w_values AS
+	        SELECT wcv."position" AS km, 
+	               wcv.w          AS w,  
+	               wc."position"  AS column_pos, 
+	               w.id           AS wst_id
+	            FROM wst_column_values wcv
+	            JOIN wst_columns wc ON wcv.wst_column_id = wc.id
+	            JOIN wsts w         ON wc.wst_id = w.id
+	        ORDER BY wcv."position", wc."position";
+
+2011-05-23	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	 flys/issue76
+
+	* src/main/java/de/intevation/flys/importer/WstParser.java:
+	  Close gaps between q ranges.
+
+2011-05-20  Ingo Weinzierl <ingo@intevation.de>
+
+	Tagged RELEASE 2.3.1
+
+2011-05-13  Ingo Weinzierl <ingo@intevation.de>
+
+	Tagged RELEASE 2.3
+
+2011-05-13  Ingo Weinzierl <ingo@intevation.de>
+
+	* Changes: Changes for release 2.3 - see Changes file to get to know about
+	  the version numbers of this software.
+
+2011-05-10	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql.sql: Added a column which tells
+	  if a river counts its km up or downwards.
+	  To update existing databases:
+
+	    ALTER TABLE rivers ADD COLUMN km_up BOOLEAN NOT NULL DEFAULT true;
+
+	* src/main/java/de/intevation/flys/model/River.java:
+	  Adjust Hibernate mapping of new column.
+
+2011-05-10	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/AtFileParser.java:
+	  Fixed flys/issue11 and flys51.
+
+2011-05-09	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/ValueKey.java:
+	  Add some unsharp comparison (eps = 1e-6) to avoid 
+	  numerical problems.
+
+	* src/main/java/de/intevation/flys/importer/IdValueKey.java:
+	  Removed. Not need any longer.
+
+	* src/main/java/de/intevation/flys/importer/ImporterSession.java:
+	  Use unsharp lookup.
+
+	* src/main/java/de/intevation/flys/importer/ImportWst.java,
+	  src/main/java/de/intevation/flys/importer/ImportRiver.java:
+	  Flush more often. Hopefully this reduces hibernate sync
+	  problems?!
+
+2011-05-09	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/ImporterSession.java:
+	  Fixed silly bug. Set flush mode back to auto because
+	  manual flushing causes some undetermined problems.
+
+2011-05-09	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/ImporterSession.java:
+	  Do not load _all_ values from discharge tables and
+	  wst columns. This is extremly slow and will lead
+	  to OOM if more rivers are imported. Now only the
+	  last 20 columns und discharge tables are cached.
+
+	* src/main/java/de/intevation/flys/importer/ValueKey.java:
+	  New. Key for caching discharge table values and wst
+	  column values.
+
+	* src/main/java/de/intevation/flys/importer/IdValueKey.java:
+	  Fixed bug in equals().
+
+	* src/main/java/de/intevation/flys/importer/ImportWstColumn.java:
+	  Removed too eloquent debug output.
+
+2011-05-09	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/IdValueKey.java:
+	  Use BigDecimals as representation for the numeric components
+	  which prevents running into unique constraint problems
+	  caused by imprecision.
+
+	* src/main/java/de/intevation/flys/importer/ImportRange.java,
+	  src/main/java/de/intevation/flys/importer/ImporterSession.java:
+	  Ranges are now cached globally, too.
+
+	* src/main/java/de/intevation/flys/importer/ImportWstColumn.java:
+	  Improved logging.
+
+	* src/main/java/de/intevation/flys/importer/ImportDischargeTableValue.java:
+	  Removed superfluous imports.
+
+2011-05-08	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/StaFileParser.java:
+	  Only accept main value types 'Q', 'W', 'D' and 'T' by default.
+	  '-' is not handled any more because it causes too much constraint
+	  problems. You can overwrite the imported type with the
+	  system property flys.backend.main.value.types" (default "QWTD")
+	  
+	* src/main/java/de/intevation/flys/importer/ImporterSession.java:
+	  Set session flush mode to manual. Hopefully this improves the
+	  performance a bit.
+
+	* src/main/java/de/intevation/flys/importer/ImportWst.java,
+	  src/main/java/de/intevation/flys/importer/ImportGauge.java,
+	  src/main/java/de/intevation/flys/importer/ImportWstColumn.java,
+	  src/main/java/de/intevation/flys/importer/ImportRange.java,
+	  src/main/java/de/intevation/flys/importer/ImportDischargeTable.java:
+	  Improved logging.
+
+2011-05-08	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/WstColumnValueKey.java: Deleted
+	* src/main/java/de/intevation/flys/importer/IdValueKey.java: Reinserted
+	  here in a more generalized form.
+
+	* src/main/java/de/intevation/flys/importer/ImporterSession.java:
+	  Cache the discharge table value, too.
+
+	* src/main/java/de/intevation/flys/importer/ImportDischargeTableValue.java:
+	  Use the global cache.
+
+2011-05-08	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/ImporterSession.java:
+	  New. Centralized caching in the thread local context. Importing
+	  the Elbe leads to OOM because the column values of the
+	  WST files where loaded separately for every file.
+
+	* src/main/java/de/intevation/flys/importer/ImportPosition.java,
+	  src/main/java/de/intevation/flys/importer/Importer.java,
+	  src/main/java/de/intevation/flys/importer/ImportAnnotation.java,
+	  src/main/java/de/intevation/flys/importer/ImportWstQRange.java,
+	  src/main/java/de/intevation/flys/importer/ImportWst.java,
+	  src/main/java/de/intevation/flys/importer/ImportMainValue.java,
+	  src/main/java/de/intevation/flys/importer/ImportMainValueType.java,
+	  src/main/java/de/intevation/flys/importer/ImportNamedMainValue.java,
+	  src/main/java/de/intevation/flys/importer/ImportRiver.java,
+	  src/main/java/de/intevation/flys/importer/ImportGauge.java,
+	  src/main/java/de/intevation/flys/importer/ImportWstColumnValue.java,
+	  src/main/java/de/intevation/flys/importer/ImportWstColumnQRange.java,
+	  src/main/java/de/intevation/flys/importer/ImportWstColumn.java,
+	  src/main/java/de/intevation/flys/importer/ImportRange.java,
+	  src/main/java/de/intevation/flys/importer/ImportDischargeTableValue.java,
+	  src/main/java/de/intevation/flys/importer/ImportDischargeTable.java,
+	  src/main/java/de/intevation/flys/importer/ImportAttribute.java,
+	  src/main/java/de/intevation/flys/importer/ImportTimeInterval.java:
+	  Adjusted to use the new global context.
+
+2011-05-08	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql.sql: Dropped constraint which
+	  forces discharge tables to have a unique time interval
+	  for a given gauge and kind.
+
+	  There are AT files (historical Mosel/Perl/Perl/1967-1981.at
+	  and Mosel/Perl/1967-1981-1.at) which violate this
+	  constraint. Its a technical question to the customer
+	  how to handle these cases.
+
+	  To adjust existing databases:
+
+	    ALTER TABLE discharge_tables DROP CONSTRAINT discharge_tables_gauge_id_key;
+
+2011-05-08	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/WstParser.java:
+	  There are wst files where column names are not unique.
+	  Make them unique by appending (1), (2) and so on.
+
+2011-05-05	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/ImportRiver.java:
+	  Import the "HW-Schutzanlagen", too.
+
+2011-05-05	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	Make import of historical discharge tables work.
+
+	* doc/schema/postgresql.sql: Added forgotten column 'description'.
+
+	  !!! You have to drop your database !!!
+
+	* src/main/java/de/intevation/flys/importer/ImportDischargeTable.java:
+	  src/main/java/de/intevation/flys/model/DischargeTable.java:
+	  Add the forgotten description property.
+
+	* src/main/java/de/intevation/flys/importer/AtFileParser.java:
+	  Fixed problems with date recognition.
+
+	* src/main/java/de/intevation/flys/importer/ImportGauge.java:
+	  Prefix the description of the historical discharge tables 
+	  with "Histor.Abflusstafeln".
+
+	* src/main/java/de/intevation/flys/importer/ImportTimeInterval.java:
+	  Fixed silly programming error.
+
+2011-05-05	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/AtFileParser.java:
+	  Inject 'kind' attribute.
+
+	* src/main/java/de/intevation/flys/importer/ImportGauge.java:
+	  Traverse the "Histor.Abflusstafeln" for the historical
+	  discharge tables. too. TODO: Store them in the database.
+
+	* src/main/java/de/intevation/flys/importer/ImportDischargeTable.java:
+	  Added convinience constructor to set the kind of the
+	  discharge table.
+	  
+2011-05-05	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/ImportRiver.java:
+	  Prefix "Zusätzliche Längsschnitte" with "Zus.Längsschnitte"
+	  in description.
+
+2011-05-05	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/ImportRiver.java:
+	  Import 'Hochwasser-Marken', too.
+
+	* src/main/java/de/intevation/flys/importer/WstParser.java:
+	  Removed superfluous import.
+
+2011-05-05	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/WstParser.java:
+	  Ignore lines that contain km positions which were found
+	  before in the same file.
+
+2011-05-05  Ingo Weinzierl <ingo@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/River.java: Added a method that
+	  returns all gauges of the river intersected by a given start and end
+	  point.
+
+2011-05-03	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/ImportTimeInterval.java:
+	  Forgot to fetch peer from result set.
+
+2011-05-03	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/ImportTimeInterval.java:
+	  New. Importer model help fetching the database peer.
+
+	* src/main/java/de/intevation/flys/model/TimeInterval.java:
+	  Add convinience constructor with start and stop time.
+
+	* src/main/java/de/intevation/flys/importer/AtFileParser.java:
+	  Attach a time interval to a discharge table if we find one.
+
+	* src/main/java/de/intevation/flys/importer/ImportDischargeTable.java:
+	  Store the reference to the importer model of the 
+	  time interval of the discharge table.
+
+2011-05-03	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/AtFileParser.java:
+	  Try to extract time ranges from at files.
+
+2011-05-03	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/ImportRiver.java:
+	  Parse and store "amtliche Linien" wst files.
+
+2011-05-03	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/ImportRiver.java:
+	  Parse and store fixation wst files as well.
+
+2011-05-03	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/ImportRiver.java:
+	  Parse the "zusaetzliche Laengsschnitte", too.
+
+	* src/main/java/de/intevation/flys/importer/ImportWst.java:
+	  Add getter/setter for column 'kind'.
+
+2011-05-02	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/WstParser.java:
+	  Fixed flys/issue19: Do not take km column in wst file as a water level.
+
+2011-05-02  Ingo Weinzierl <ingo@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/Gauge.java: Introduced a 'scale'
+	  that is used to adjust the range of min/max W values.
+
+2011-05-01	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/WstParser.java:
+	  Removed superfluous import.
+
+2011-04-20  Ingo Weinzierl <ingo@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/WstColumnValueKey.java:
+	  New. This class is used as distinct key of a WstColumnValue - e.g. as
+	  key in a map.
+
+	* src/main/java/de/intevation/flys/importer/ImportWst.java: A
+	  WstColumnValue cache is build up while initialization. This cache
+	  contains all WstColumnValues that exist in the database.
+
+	* src/main/java/de/intevation/flys/importer/ImportWstColumn.java: New
+	  constructor that takes the WstColumnValues cache. It is used to
+	  initialize new ImportWstColumnValue objects.
+
+	* src/main/java/de/intevation/flys/importer/ImportWstColumnValue.java:
+	  Speedup: A ImportWstColumnValue has a WstColumnValues cache that
+	  contains all WstColumnValues existing in the database. This makes it
+	  unnecessary to call an sql statement for each WstColumnValue to
+	  determine its existence in the database.
+
+2011-04-18	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql.sql, doc/schema/postgresql-cleanup.sql:
+	  Added a view 'wst_value_table' which aggregates the data
+	  to build w/q value tables.
+
+	  To update existing databases:
+
+	  BEGIN;
+	    CREATE VIEW wst_value_table AS
+	        SELECT wcv.position AS position,
+	               w,
+	               (SELECT q
+	                FROM   wst_column_q_ranges wcqr
+	                       JOIN wst_q_ranges wqr
+	                         ON wcqr.wst_q_range_id = wqr.id
+	                       JOIN ranges r
+	                         ON r.id = wqr.range_id
+	                WHERE  wcqr.wst_column_id = wc.id
+	                       AND wcv.position BETWEEN r.a AND r.b) AS q,
+	               wc.position                                   AS column_pos,
+	               w.id                                          AS wst_id
+	        FROM   wst_column_values wcv
+	               JOIN wst_columns wc
+	                 ON wcv.wst_column_id = wc.id
+	               JOIN wsts w
+	                 ON wc.wst_id = w.id
+	        ORDER  BY wcv.position ASC,
+	              wc.position DESC;
+	  COMMIT;
+
+2011-04-18	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/Wst.java:
+	  Add forgotten one to many relation Wst -> WstColumn.
+
+2011-04-18	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/ImportWst.java,
+	  src/main/java/de/intevation/flys/importer/WstParser.java:
+	  Import of q ranges of wst files was totally broken. :-/
+	  You have to reimport all your data.
+
+2011-04-18	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/ImportDischargeTable.java:
+	  Forgot kind parameter in peer fetching query.
+	  
+2011-04-18  Ingo Weinzierl <ingo@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/River.java::
+	  Added a new method to determine the gauge based on a given start and end
+	  point of the river.
+
+2011-04-15	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql.sql: Added 'position' column to wst_columns
+	  to allow order them by there column position in the original
+	  wst file.
+	
+	  Update existing database with:
+
+	    BEGIN;
+	      ALTER TABLE wst_columns ADD COLUMN position int;
+	      UPDATE wst_columns w SET 
+	        position = id - (SELECT min(id) FROM wst_columns WHERE wst_id = w.wst_id);
+	      ALTER TABLE wst_columns ADD CONSTRAINT wst_columns_wst_id_position_key
+	        UNIQUE (wst_id, position);
+	    COMMIT;
+
+	* src/main/java/de/intevation/flys/model/Wst.java,
+	  src/main/java/de/intevation/flys/model/WstColumn.java:
+	  Adjusted models.
+
+	* src/main/java/de/intevation/flys/importer/ImportWst.java,
+	  src/main/java/de/intevation/flys/importer/ImportWstColumn.java:
+	  Adjusted importer.
+
+2011-04-15	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql.sql: Forget ',' in schema.
+
+2011-04-15	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/Wst.java (determineMinMaxQ): 
+	  Fixed index problem when an empty list is returned.
+
+2011-04-15  Ingo Weinzierl <ingo@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/Wst.java: A Wst is now able to
+	  return its min and max Q values.
+
+	* src/main/java/de/intevation/flys/model/Gauge.java: A Gauge is now able
+	  to return its min and max W values.
+
+2011-04-15	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql.sql: Added new column 'kind' in
+	  discharge tables and wst to distinguish between different
+	  kinds like 'Haupt-WST', 'zusaetzliche Laengsschnitte',
+	  'amtliche Daten' and so on.
+
+	  Update existing databases with:
+	    BEGIN;
+	      ALTER TABLE discharge_tables ADD COLUMN kind int NOT NULL DEFAULT 0;
+	      ALTER TABLE wsts             ADD COLUMN kind int NOT NULL DEFAULT 0;
+	    COMMIT;
+
+	* src/main/java/de/intevation/flys/model/DischargeTable.java
+	  src/main/java/de/intevation/flys/model/Wst.java,
+	  src/main/java/de/intevation/flys/importer/ImportWst.java,
+	  src/main/java/de/intevation/flys/importer/ImportDischargeTable.java:
+	  Adjusted the models.
+
+2011-04-15  Ingo Weinzierl <ingo@intevation.de>
+
+	* src/main/java/de/intevation/flys/backend/SessionHolder.java: Moved to
+	  this module from flys-artifacts. This is necessary to get access to the
+	  current session in this module as well.
+
+2011-04-14  Ingo Weinzierl <ingo@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/River.java: Added a method that
+	  returns the min and max distance of a river.
+
+2011-04-03	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/**/*.java: Removed trailing whitespace.
+
+2011-03-30  Ingo Weinzierl <ingo@intevation.de>
+
+	Tagged RELEASE 0.1
+
+2011-03-28	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/Range.java:
+	  Forgot to save the last change before commit.
+
+2011-03-28	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/Range.java:
+	  Added methods to find out if two ranges intersects.
+
+2011-03-24	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/Gauge.java:
+	  Added an one to many relation to the discharge tables of a gauge.
+
+2011-03-22	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	Finished import of WSTs.
+
+	TODO 1: Speed it up! It takes on a high end machine over 7(!)
+	        minutes only for the data of the Saar.
+	TODO 2: Double precision floating point representations produced
+	        by the the parsers leed to unique constraint violations
+			in the backend on a second run. So the import is currently
+			only working on freshly initialized data bases.
+			More consequent working with BigDecimal and some
+			rounding may be of help here.
+
+	* src/main/java/de/intevation/flys/model/WstColumnValue.java:
+	  Added convinience constructors.
+
+	* src/main/java/de/intevation/flys/importer/ImportWstColumnValue.java:
+	  Added getPeer() method.
+
+	* src/main/java/de/intevation/flys/importer/ImportWstColumn.java:
+	  Add a list of the ImportWstColumnValues produced by the WST parser.
+
+	* src/main/java/de/intevation/flys/importer/WstParser.java: Add
+	  the (km, w) values to the ImportWstColumns.
+
+2011-03-22	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/WstParser.java:
+	  Build models for wsts, wst columns and q ranges and
+	  store them in the backend. TODO: store the w values.
+
+	* src/main/java/de/intevation/flys/model/WstQRange.java
+	  src/main/java/de/intevation/flys/model/Wst.java,
+	  src/main/java/de/intevation/flys/model/Range.java,
+	  src/main/java/de/intevation/flys/model/WstColumnQRange.java,
+	  src/main/java/de/intevation/flys/model/WstColumn.java:
+	  Added convinience constructors.
+
+	* src/main/java/de/intevation/flys/importer/ImportWstQRange.java,
+	  src/main/java/de/intevation/flys/importer/ImportWst.java,
+	  src/main/java/de/intevation/flys/importer/ImportRiver.java,
+	  src/main/java/de/intevation/flys/importer/ImportWstColumnQRange.java,
+	  src/main/java/de/intevation/flys/importer/ImportWstColumn.java,
+	  src/main/java/de/intevation/flys/importer/ImportRange.java:
+	  Added getPeer() methods.
+
+2011-03-22	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/WstParser.java:
+	  The unit extraction in the WST parser of desktop FLYS
+	  is broken! Add a hack here to repair this for our
+	  importer. Desktop FLYS needs a fix, too!
+
+2011-03-22	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/WstParser.java:
+	  Ported some stuff ver from WSTSource.java of desktop flys to
+	  parse WST files. TODO: create instances of the import models.
+
+	* src/main/java/de/intevation/flys/utils/StringUtil.java:
+	  Copied from desktop flys. Used for some string operations
+	  in WST parser.
+
+	* src/main/java/de/intevation/flys/importer/Importer.java:
+	  Added system property 'flys.backend.importer.dry.run'.
+	  Set to true only the parsing is done and no writing
+	  to the backend. Default: false.
+
+	*  src/main/java/de/intevation/flys/App.java,
+	   src/main/java/de/intevation/flys/model/MainValueType.java:
+	   Removed needless imports.
+
+2011-03-22  Ingo Weinzierl <ingo@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/DischargeTableValue.java,
+	  src/main/java/de/intevation/flys/model/DischargeTable.java: Added new
+	  constructors.
+
+	* src/main/java/de/intevation/flys/importer/AtFileParser.java: New. This
+	  parser is used to '*.at' files.
+
+	* src/main/java/de/intevation/flys/importer/ImportGauge.java: Added code to
+	  import discharge tables.
+
+	* src/main/java/de/intevation/flys/importer/ImportDischargeTableValue.java,
+	  src/main/java/de/intevation/flys/importer/ImportDischargeTable.java: New.
+	  Helper models for import discharge tables.
+
+2011-03-22	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/WstParser.java,
+	  src/main/java/de/intevation/flys/importer/ImportRiver.java:
+	  Added stub for WST parser.
+
+2011-03-22	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/ImportWstQRange.java,
+	  src/main/java/de/intevation/flys/importer/ImportWst.java,
+	  src/main/java/de/intevation/flys/importer/ImportWstColumnValue.java,
+	  src/main/java/de/intevation/flys/importer/ImportWstColumnQRange.java,
+	  src/main/java/de/intevation/flys/importer/ImportWstColumn.java:
+	  Added importer helper model stubs for WST imports.
+	
+2011-03-21	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	Second part of parsing/storing main values. Should be finished now.
+
+	* src/main/java/de/intevation/flys/importer/ImportNamedMainValue.java,
+	  src/main/java/de/intevation/flys/importer/ImportMainValue.java:
+	  New. Helper models for import main values,
+
+	* src/main/java/de/intevation/flys/model/MainValue.java,
+	  src/main/java/de/intevation/flys/model/NamedMainValue.java:
+	  Added convinience constructors.
+
+	* src/main/java/de/intevation/flys/importer/ImportGauge.java:
+	  Write main values to backend, too.
+
+	* src/main/java/de/intevation/flys/importer/StaFileParser.java:
+	  Build importer models for main values.
+
+	* src/main/java/de/intevation/flys/importer/ImportMainValueType.java:
+	  Data was called 'value'. Now it is 'name' to fit the
+	  schema.
+
+2011-03-21	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql.sql: Fixed wrong unique constraint.
+
+	* src/main/java/de/intevation/flys/importer/ImportRiver.java:
+	  Added some logging when storing gauges.
+
+2011-03-21	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/Gauge.java:
+	  Add forgotten column river_id.
+
+	* src/main/java/de/intevation/flys/importer/ImportGauge.java:
+	  Small HQL fix.
+
+2011-03-21	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/Gauge.java:
+	  Added convinience contructor.
+
+	* src/main/java/de/intevation/flys/importer/ImportGauge.java:
+	  Fixed getPeer() method.
+
+	* src/main/java/de/intevation/flys/importer/StaFileParser.java:
+	  Fixed parsing of STA files.
+
+2011-03-21	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/ImportRiver.java,
+	  src/main/java/de/intevation/flys/importer/ImportGauge.java:
+	  Propagate river into storing of gauges.
+
+2011-03-21	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/Importer.java:
+	  Added code to store rivers not only annotations.
+
+	* src/main/java/de/intevation/flys/importer/ImportRiver.java:
+	  Added stub code to write gauges.
+
+2011-03-17	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	First part of parsing main values.
+
+	* src/main/java/de/intevation/flys/App.java: Commented out
+	  creation of dummy rivers.
+
+	* src/main/java/de/intevation/flys/model/NamedMainValues.java:
+	  Moved to NamedMainValue.
+
+	* src/main/java/de/intevation/flys/model/NamedMainValue.java:
+	  New. Formerly NamedMainValues.
+
+	* src/main/java/de/intevation/flys/model/MainValue.java:
+	  New. Forgotten part of the model.
+
+	* src/main/java/de/intevation/flys/model/MainValueType.java:
+	  Data is String not BigDecimal
+
+	* src/main/java/de/intevation/flys/model/Range.java: Removed
+	  contructor with double arguments. Using BigDecimal now.
+
+	* src/main/java/de/intevation/flys/importer/PegelGltParser.java:
+	  Propagate BigDecimal usage.
+
+	* src/main/java/de/intevation/flys/importer/Importer.java:
+	  Removed needless import. Added TODO
+
+	* src/main/java/de/intevation/flys/importer/ImportRiver.java:
+	  Parse the dependencies of the gauges, too.
+
+	* src/main/java/de/intevation/flys/importer/StaFileParser.java:
+	  New. Parser for STA files.
+
+	* src/main/java/de/intevation/flys/importer/ImportGauge.java:
+	  Call STA file parser.
+
+	* src/main/java/de/intevation/flys/importer/AnnotationsParser.java,
+	  src/main/java/de/intevation/flys/importer/ImportRange.java:
+	  Uses BigDecimal now.
+
+	* src/main/java/de/intevation/flys/importer/ImportAttribute.java:
+	  Fixed wrong type cast in equals.
+
+	* src/main/java/de/intevation/flys/importer/ImportMainValueType.java:
+	  New. Helper model for importing main value types.
+
+	* src/main/java/de/intevation/flys/backend/SessionFactoryProvider.java:
+	  Register forgotten MainValue model.
+
+2011-03-17	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	Store annotations in backend.
+
+	* src/main/java/de/intevation/flys/model/Annotation.java:
+	  New convinience constructor.
+
+	* src/main/java/de/intevation/flys/model/River.java:
+	  Added toString() method.
+
+	* src/main/java/de/intevation/flys/model/Range.java:
+	  Fixed nasty mistake in @OneToOne annotatation.
+	  New convinience constructors.
+
+	* src/main/java/de/intevation/flys/importer/ImportPosition.java
+	  src/main/java/de/intevation/flys/importer/ImportAnnotation.java,
+	  src/main/java/de/intevation/flys/importer/ImportRange.java
+	  src/main/java/de/intevation/flys/importer/ImportAttribute.java:
+	  Make storing to backend work. It's a bit too slow. :-/
+
+	* src/main/java/de/intevation/flys/importer/ImportRiver.java:
+	  Fetch peer from backend. Added method to store annotations.
+	* src/main/java/de/intevation/flys/importer/Importer.java:
+	  Stored annotations into backend. More eloquent SQL exception
+	  handling.
+
+2011-03-17	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/Attribute.java,
+	  src/main/java/de/intevation/flys/model/Position.java:
+	  Added convinience constructors.
+
+	* src/main/java/de/intevation/flys/importer/ImportPosition.java,
+	  src/main/java/de/intevation/flys/importer/ImportAttribute.java:
+	  Bound them to there backend peers.
+
+2011-03-17	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/AnnotationsParser.java:
+	  New. Added parser to read *.KM files.
+
+	* src/main/java/de/intevation/flys/importer/ImportPosition.java,
+	  src/main/java/de/intevation/flys/importer/PegelGltParser.java,
+	  src/main/java/de/intevation/flys/importer/ImportRiver.java,
+	  src/main/java/de/intevation/flys/importer/ImportAnnotation.java,
+	  src/main/java/de/intevation/flys/importer/ImportRange.java,
+	  src/main/java/de/intevation/flys/importer/InfoGewParser.java,
+	  src/main/java/de/intevation/flys/importer/ImportAttribute.java:
+	  Adjusted to load the annotations from *.KM files.
+
+2011-03-17	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/ImportPosition.java,
+	  src/main/java/de/intevation/flys/importer/ImportRange.java,
+	  src/main/java/de/intevation/flys/importer/ImportAttribute.java,
+	  src/main/java/de/intevation/flys/importer/ImportAnnotation.java:
+	  New helper models for import.
+
+	* src/main/java/de/intevation/flys/importer/PegelGltParser.java,
+	  src/main/java/de/intevation/flys/importer/ImportGauge.java:
+	  Use new models.
+
+2011-03-17	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/PegelGltParser.java:
+	  New. Parser for PEGEL.GLT files.
+
+	* src/main/java/de/intevation/flys/importer/ImportGauge.java:
+	  New. Import model for gauges.
+
+	* src/main/java/de/intevation/flys/utils/DBCPConnectionProvider.java:
+	  Removed needless imports.
+
+	* src/main/java/de/intevation/flys/importer/ImportRiver.java:
+	  Added method to parse the gauges.
+
+	* src/main/java/de/intevation/flys/importer/InfoGewParser.java:
+	  Trigger pegel glt file parsing.
+
+2011-03-17	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/Importer.java:
+	  Used thread local pattern to make sharing of session easier.
+
+2011-03-17	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/Importer.java:
+	  Fixed error in HQL statement.
+
+2011-03-17	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/utils/DBCPConnectionProvider.java:
+	  Commented out a debug block because it leaks the db password.
+
+2011-03-16	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/importer/InfoGewParser.java:
+	  Expose imported rivers.
+
+	* src/main/java/de/intevation/flys/importer/InfoGewParser.java:
+	  Store imported rivers into database. Needs testing!
+
+2011-03-16	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/backend/SessionFactoryProvider.java:
+	  Default connection parameters are now overwritable with
+	  system properties (defaults in brackets):
+	  - user name:     flys.backend.user     (flys)
+	  - user password: flys.backend.password (flys)
+	  - db dialect:    flys.backend.dialect  (org.hibernate.dialect.PostgreSQLDialect)
+	  - db driver:     flys.backend.driver   (org.postgresql.Driver)
+	  - db url:        flys.backend.url      (jdbc:postgresql://localhost:5432/flys)
+
+2011-03-16	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/backend/SessionFactoryProvider.java:
+	  Expose createSessionFactory() as public to be usable without
+	  a artifact database running.
+
+2011-03-16	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/utils/FileTools.java: 
+	  Tools for handling with filenames. Currently there is
+	  a repair(File) method with repairs letter case errors
+	  which is useful when reading windows filenames on a
+	  un*x platform.
+
+	* src/main/java/de/intevation/flys/importer/Importer.java:
+	  Standalone app to read data from the file system and
+	  store it in a database. Currently it does not store 
+	  anything. It only loads info gew files.
+
+	* src/main/java/de/intevation/flys/importer/InfoGewParser.java:
+	  Info gew parser.
+
+	* src/main/java/de/intevation/flys/importer/ImportRiver.java:
+	  Helper model of a river used produced by parsing the
+	  info gew files.
+
+2011-03-15	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/backend/SessionFactoryProvider.java:
+	  New. SessionFactoryProvider.getSessionFactory() provides a
+	  SessionFactory to use the Hibernate O/R mapper for the FLYS backend.
+
+2011-03-15	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* pom.xml: Added dependency to artifacts-commons to
+	  be able to use the global configuration of the artifact database.
+
+2011-03-15	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/App.java: Wire all POJOs
+	  to corresponding factory.
+
+	* src/main/java/de/intevation/flys/model/*.java: Generate
+	  all foreign key constraints. TODO: name them correctly
+	  because the machine generated names are ugly and do
+	  not fit the PostgreSQL names.
+
+	* doc/schema/postgresql.sql: Small quantifier fix in descriptions
+	  of wst columns.
+
+2011-03-14	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql.sql: Fixed wrong spelled 
+	  column references in foreign keys introduces with
+	  last change.
+
+2011-03-14	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/model/*.java: Added
+	  column annotations for simple fields. TODO: foreign keys.
+
+2011-03-14	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql.sql, doc/schema/postgresql-cleanup.sql:
+	  Fixed inconsistent table names.
+
+	* src/main/java/de/intevation/flys/model/*.java: Added
+	  entity and id annotations.
+
+2011-03-14	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql.sql, doc/schema/postgresql-cleanup.sql:
+	  Added missing sequences.
+
+	* doc/schema/sqlite.sql: Deleted. Not longer supported.
+
+2011-03-11	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql-cleanup.sql: Forgot to add.
+
+	* src/main/java/de/intevation/flys/App.java: Use
+	  Apache Commons DBCP as Hibernate connection provide.
+
+	* src/main/java/de/intevation/flys/model/River.java:
+	  Added a constructor with string argument. Set the
+	  sequence increment to 1 (eat up 100 at a time before).
+
+	* pom.xml: Added PostgreSQL 8.4 driver as runtime dependency.
+
+2011-03-11	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/postgresql-cleanup.sql: New. Tear down schema
+	  for a postgres database.
+
+	* doc/schema/postgresql.sql: Added squence for 
+	  auto generating ids in river table. Cleaned up schema.
+
+	* src/main/java/de/intevation/flys/App.java: Simple
+	  test app to interact with hibernate. Needs to be removed
+	  because its only a toy.
+
+	* src/main/java/de/intevation/flys/utils/DBCPConnectionProvider.java:
+	  New. Binds Apache Commons to Hibernate.
+
+	* pom.xml: Added dependencies to log4j, commons dbcp,
+	  JPA of hibernate.
+
+	* src/main/java/de/intevation/flys/model/River.java: Added
+	  JPA annotations.
+
+	* src/main/java/de/intevation/flys/model/*.java: Replaced
+	  Long with Integer because column ids are only four bytes wide.
+
+2011-03-11	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/sqlite.sql, doc/schema/postgresql.sql: Fixed
+	  smaller issues in ddl.
+
+	* src/main/java/de/intevation/flys/model/*.java: Added POJOs
+	  of to be mapped. TODO: Map them!
+
+	* pom.xml: Added plugin config for hibernate.
+
+2011-03-09	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* pom.xml: Added dependency (and corresponding repository) to
+	  Hibernate Core 3.6.1 Final
+
+2011-03-09	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* pom.xml, src/**: Created a new empty maven project:
+	  $ mvn archetype:create         \
+	    -DgroupId=de.intevation.flys \
+		-DartifactId=flys-backend
+
+2011-03-09	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* README: New. Some setup instructions.
+
+	* doc/schema/postgresql.sql: New. Schema converted to PostgreSQL
+
+	* doc/schema/sqlite.sql: Fixed defect foreign key constraints.
+
+2011-03-09	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/schema/sqlite.sql: Factorized time intervals out into
+	  a separated table.
+
+2011-01-22	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* contrib/import-kms.py, contrib/import-gew.py: Initial scripts
+	to import data into SQLite database. They still need some work.
+
+2011-02-10	Sascha L. Teichmann	<sascha.teichmann@intevation.de>:
+
+	* doc/schema/sqlite.sql: Added initial schema for
+	FLYS database.

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