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Java > Open Source Codes > org > apache > ojb > broker > core > ReportRsIteratorFactoryImpl


1 package org.apache.ojb.broker.core;
2
3 /* Copyright 2003-2005 The Apache Software Foundation
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17
18 import org.apache.ojb.broker.accesslayer.ReportQueryRsIterator;
19 import org.apache.ojb.broker.accesslayer.RsIterator;
20 import org.apache.ojb.broker.accesslayer.RsQueryObject;
21 import org.apache.ojb.broker.accesslayer.SqlBasedReportQueryRsIterator;
22 import org.apache.ojb.broker.metadata.ClassDescriptor;
23 import org.apache.ojb.broker.query.Query;
24 import org.apache.ojb.broker.query.QueryBySQL;
25
26 /**
27  * Factory for ReportQueryRsIterator
28  *
29  * @author <a HREF="mailto:jbraeuchi@hotmail.com">Jakob Braeuchi</a>
30  * @version $Id: ReportRsIteratorFactoryImpl.java,v 1.4.2.1 2005/12/21 22:25:01 tomdz Exp $
31  */
32 class ReportRsIteratorFactoryImpl implements RsIteratorFactory
33 {
34     private static RsIteratorFactory instance;
35
36     /**
37      * Constructor for RsIteratorFactoryImpl.
38      */
39     public ReportRsIteratorFactoryImpl()
40     {
41         super();
42     }
43
44     static RsIteratorFactory getInstance()
45     {
46         if (instance == null)
47         {
48             instance = new ReportRsIteratorFactoryImpl();
49         }
50
51         return instance;
52     }
53
54     /**
55      * @see org.apache.ojb.broker.core.RsIteratorFactory#createRsIterator(Query, ClassDescriptor, PersistenceBrokerImpl)
56      */
57     public RsIterator createRsIterator(Query query, ClassDescriptor cld, PersistenceBrokerImpl broker)
58     {
59         return new ReportQueryRsIterator(RsQueryObject.get(cld, query), broker);
60     }
61
62     /**
63      * @see org.apache.ojb.broker.core.RsIteratorFactory#createRsIterator(org.apache.ojb.broker.query.QueryBySQL, ClassDescriptor, PersistenceBrokerImpl)
64      */
65     public RsIterator createRsIterator(QueryBySQL query, ClassDescriptor cld, PersistenceBrokerImpl broker)
66     {
67         return new SqlBasedReportQueryRsIterator(RsQueryObject.get(cld, query), broker);
68     }
69
70 }
71
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