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Java > Open Source Codes > org > objectweb > jalisto > se > query > parameter > SubQuery


1 /*
2  * Jalisto - JAva LIght STOrage
3  * Copyright (C) 2000-2005 Xcalia http://www.xcalia.com
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2.1 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  * Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public
16  * License along with this library; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
18  *
19  * Xcalia
20  * 71, rue Desnouettes
21  * 75014 Paris - France
22  * http://www.xcalia.com
23  */
24 package org.objectweb.jalisto.se.query.parameter;
25
26 import org.objectweb.jalisto.se.api.MetaRepository;
27 import org.objectweb.jalisto.se.api.query.Query;
28 import org.objectweb.jalisto.se.query.QueryImpl;
29 import org.objectweb.jalisto.se.query.execution.ExecutionTree;
30
31 public class SubQuery {
32
33     public SubQuery(Query subQuery) {
34         this.query = (QueryImpl) subQuery;
35     }
36
37     public Query getQuery() {
38         return query;
39     }
40
41     public ExecutionTree getTree(MetaRepository repository) {
42         if (tree == null) {
43             String JavaDoc subQueriedClass = query.getQueriedClassName();
44             tree = new ExecutionTree(query.getBinaryTree(), repository, subQueriedClass);
45         }
46         return tree;
47     }
48
49     public void deleteTree() {
50         this.tree = null;
51     }
52
53
54     private QueryImpl query;
55     private ExecutionTree tree;
56 }
57
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