EOSQLQuery


1   /*****************************************************************
2    *   Licensed to the Apache Software Foundation (ASF) under one
3    *  or more contributor license agreements.  See the NOTICE file
4    *  distributed with this work for additional information
5    *  regarding copyright ownership.  The ASF licenses this file
6    *  to you under the Apache License, Version 2.0 (the
7    *  "License"); you may not use this file except in compliance
8    *  with the License.  You may obtain a copy of the License at
9    *
10   *    http://www.apache.org/licenses/LICENSE-2.0
11   *
12   *  Unless required by applicable law or agreed to in writing,
13   *  software distributed under the License is distributed on an
14   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   *  KIND, either express or implied.  See the License for the
16   *  specific language governing permissions and limitations
17   *  under the License.
18   ****************************************************************/
19  
20  package org.apache.cayenne.wocompat;
21  
22  import java.util.Map  ;
23  
24  import org.apache.cayenne.map.ObjEntity;
25  import org.apache.cayenne.query.SQLTemplate;
26  
27  /**
28   * A descriptor of SQLTemplate loaded from EOModel. It is an informal "decorator" of
29   * Cayenne SQLTemplate to provide access to the extra information of WebObjects
30   * EOFetchSpecification.
31   * 
32   * @author Travis Cripps
33   * @since 1.2
34   */
35  public class EOSQLQuery extends SQLTemplate {
36  
37      protected Map   plistMap;
38  
39      public EOSQLQuery(ObjEntity root, Map   plistMap) {
40          super(root, null);
41          this.plistMap = plistMap;
42          initFromPlist(plistMap);
43      }
44  
45      protected void initFromPlist(Map   plistMap) {
46  
47          setResolvingInherited("YES".equalsIgnoreCase((String  ) plistMap.get("isDeep")));
48          setRefreshingObjects("YES".equalsIgnoreCase((String  ) plistMap
49                  .get("refreshesRefetchedObjects")));
50  
51          Object   fetchLimit = plistMap.get("fetchLimit");
52          if (fetchLimit != null) {
53              try {
54                  if (fetchLimit instanceof Number  ) {
55                      setFetchLimit(((Number  ) fetchLimit).intValue());
56                  }
57                  else {
58                      setFetchLimit(Integer.parseInt(fetchLimit.toString()));
59                  }
60              }
61              catch (NumberFormatException   nfex) {
62                  // ignoring...
63              }
64          }
65  
66          //query
67          // TODO: doesn't work with Stored Procedures.
68          Map   hints = (Map  ) plistMap.get("hints");
69          if (hints != null && !hints.isEmpty()) {
70              String   sqlExpression = (String  ) hints.get("EOCustomQueryExpressionHintKey");
71              if (sqlExpression != null) {
72                  setDefaultTemplate(sqlExpression);
73              }
74          }
75      }
76  }
77
A to Z: JavaDoc & Examples Daily Java News & Articles Open Source Projects Open Source Codes Free Computer Books Remove Frame
Popular Tags