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1   /*
2    * ModeShape (http://www.modeshape.org)
3    * See the COPYRIGHT.txt file distributed with this work for information
4    * regarding copyright ownership.  Some portions may be licensed
5    * to Red Hat, Inc. under one or more contributor license agreements.
6    * See the AUTHORS.txt file in the distribution for a full listing of 
7    * individual contributors.
8    *
9    * ModeShape is free software. Unless otherwise indicated, all code in ModeShape
10   * is licensed to you under the terms of the GNU Lesser General Public License as
11   * published by the Free Software Foundation; either version 2.1 of
12   * the License, or (at your option) any later version.
13   * 
14   * ModeShape is distributed in the hope that it will be useful,
15   * but WITHOUT ANY WARRANTY; without even the implied warranty of
16   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17   * Lesser General Public License for more details.
18   *
19   * You should have received a copy of the GNU Lesser General Public
20   * License along with this software; if not, write to the Free
21   * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
22   * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
23   */
24  package org.modeshape.jcr.query.qom;
25  
26  import org.modeshape.graph.query.model.DescendantNodeJoinCondition;
27  import org.modeshape.graph.query.model.SelectorName;
28  
29  /**
30   * Implementation of the descendant-node join condition for the JCR Query Object Model and the Graph API.
31   */
32  public class JcrDescendantNodeJoinCondition extends DescendantNodeJoinCondition
33      implements javax.jcr.query.qom.DescendantNodeJoinCondition, JcrJoinCondition {
34  
35      private static final long serialVersionUID = 1L;
36  
37      /**
38       * Create a join condition that determines whether the node identified by the descendant selector is indeed a descendant of
39       * the node identified by the ancestor selector.
40       * 
41       * @param ancestorSelectorName the name of the ancestor selector
42       * @param descendantSelectorName the name of the descendant selector
43       */
44      public JcrDescendantNodeJoinCondition( SelectorName ancestorSelectorName,
45                                             SelectorName descendantSelectorName ) {
46          super(ancestorSelectorName, descendantSelectorName);
47      }
48  
49      /**
50       * {@inheritDoc}
51       * 
52       * @see javax.jcr.query.qom.DescendantNodeJoinCondition#getAncestorSelectorName()
53       */
54      @Override
55      public String getAncestorSelectorName() {
56          return ancestorSelectorName().name();
57      }
58  
59      /**
60       * {@inheritDoc}
61       * 
62       * @see javax.jcr.query.qom.DescendantNodeJoinCondition#getDescendantSelectorName()
63       */
64      @Override
65      public String getDescendantSelectorName() {
66          return descendantSelectorName().name();
67      }
68  }