Mercurial > dive4elements > gnv-client

annotate geo-backend/src/main/java/de/intevation/gnv/geobackend/base/query/QueryExecutorBase.java @ 133:56655046194f

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Fix Bug setting the Filtervalues into the Statement. Further Testcases implemented. geo-backend/trunk@14 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Tim Englich <tim.englich@intevation.de>
date Fri, 04 Sep 2009 08:49:50 +0000
parents 5a583cff97ea
children 8aad9d098b08
rev   line source
132
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
1 /**
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
2 *
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
3 */
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
4 package de.intevation.gnv.geobackend.base.query;
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
5
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
6 import java.sql.ResultSet;
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
7 import java.sql.ResultSetMetaData;
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
8 import java.sql.SQLException;
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
9 import java.util.ArrayList;
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
10 import java.util.Collection;
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
11 import java.util.List;
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
12
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
13 import de.intevation.gnv.geobackend.base.DefaultResult;
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
14 import de.intevation.gnv.geobackend.base.DefaultResultDescriptor;
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
15 import de.intevation.gnv.geobackend.base.Result;
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
16 import de.intevation.gnv.geobackend.base.ResultDescriptor;
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
17
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
18 /**
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
19 * This is an abstract Basicimplementation of the Interface
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
20 * QueryExecutor providing several Helpermethods.
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
21 * @author Tim Englich <tim.englich@intevation.de>
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
22 *
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
23 */
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
24 public abstract class QueryExecutorBase implements QueryExecutor {
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
25
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
26 /**
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
27 * Constructor
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
28 */
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
29 public QueryExecutorBase() {
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
30 super();
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
31 }
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
32
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
33 /**
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
34 * This Method puts the Filtervalues into the Querystring
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
35 * @param queryString the Query which should be manipulated
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
36 * @param filter the values which should be put into the Query
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
37 * @return the manipulated Query
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
38 */
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
39 protected String setFilterValues(String queryString, String[] filter){
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
40 String returnValue = queryString;
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
41 for (int i = 0; i < filter.length; i++){
133
56655046194f Fix Bug setting the Filtervalues into the Statement.
Tim Englich <tim.englich@intevation.de>
parents: 132
diff changeset
42 returnValue = returnValue.replaceFirst("[?]", filter[i]);
132
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
43 }
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
44 return returnValue;
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
45 }
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
46
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
47 /**
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
48 * This Methods converts the ResultSet into an Collection of Result-objects
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
49 * @param resultSet the ResultSet which should be converted
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
50 * @return an Collection containing Result-Objects
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
51 * @throws SQLException
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
52 */
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
53 protected Collection<Result> createResultCollection(ResultSet resultSet) throws SQLException{
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
54 Collection<Result> returnValue = new ArrayList<Result>();
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
55
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
56 ResultDescriptor resultDescriptor = null;
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
57 int columns = -1;
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
58 List<String> columnNames = null;
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
59 while (resultSet.next()){
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
60 if (resultDescriptor == null){
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
61 resultDescriptor = new DefaultResultDescriptor();
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
62 ResultSetMetaData rsmd = resultSet.getMetaData();
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
63 columns = rsmd.getColumnCount();
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
64 columnNames = new ArrayList<String>(columns);
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
65 for (int i = 1; i <= columns; i++){
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
66 resultDescriptor.addColumn(rsmd.getColumnName(i), rsmd.getColumnClassName(i));
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
67 columnNames.add(rsmd.getColumnName(i));
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
68 }
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
69 }
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
70
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
71 Result result = convertResult(resultSet, resultDescriptor,columnNames);
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
72
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
73 returnValue.add(result);
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
74 }
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
75 return returnValue;
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
76 }
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
77
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
78 /**
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
79 * This Method converts one Singel ResultSetEntry into an Result-Object
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
80 * @param resultSet the ResultSet where the Entry should be took from.
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
81 * @param resultDescriptor the ResultsetDescriptor which describes the Entry
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
82 * @param columnNames the Name of the Columns which Values should be fetched.
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
83 * @return an new Result-Objects containing the Values of the ResultSet-Entry
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
84 * @throws SQLException
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
85 */
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
86 private Result convertResult(ResultSet resultSet,
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
87 ResultDescriptor resultDescriptor, List<String> columnNames)
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
88 throws SQLException {
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
89 Result result = new DefaultResult(resultDescriptor);
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
90 for (int i = 0; i < columnNames.size(); i++){
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
91 String columnName = columnNames.get(i);
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
92 result.addColumnValue(columnName, resultSet.getObject(columnName));
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
93 }
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
94 return result;
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
95 }
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
96
5a583cff97ea Implementation of the Datainfrastructure for fetching Data from different DataStores.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
97 }
http://dive4elements.wald.intevation.org