--- a/flys-artifacts/ChangeLog	Mon Feb 20 14:36:28 2012 +0000
+++ b/flys-artifacts/ChangeLog	Mon Feb 20 16:41:45 2012 +0000
@@ -1,3 +1,25 @@
+2012-02-20  Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/artifacts/model/FixingsOverview.java:
+	  Added a filter mechanism for generating output.
+
+	  There are two kinds of filters:
+
+	  1 - A range. Defaults to [-Double.MAX_VALUE, Double.MAX_VALUE]
+	      The resulting sectors are cut to this range. Sectors outside
+	      this range are omitted.
+
+	  2 - column filters: Given a fixing column they can decide to keep
+	      or not to keep it. Following filters exist:
+
+	      - IdFilter: Keep column if column id matches.
+	      - DateFilter: Keep column if column date matches.
+	      - DateRangeFilter: Keep column if column date is in range.
+	      - SectorRangeFilter: Keep colum if one of its q sectors is in given range.
+	      - NotFilter: Negates another nested filter.
+	      - AndFilter: Keep column if all nested filters accept column.
+	      - OrFilter: Keep column if at least one of the nested filters accepts it.
+
 2012-02-20  Sascha L. Teichmann	<sascha.teichmann@intevation.de>
 
 	* src/main/java/de/intevation/flys/artifacts/model/FixingsOverview.java: