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Java > Open Source Codes > org > objectweb > medor > query > lib > JoinProject


1 /**
2  * MEDOR: Middleware Enabling Distributed Object Requests
3  *
4  * Copyright (C) 2001-2004 France Telecom R&D
5  * Contact: alexandre.lefebvre@rd.francetelecom.com
6  *
7  * This library is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * This library is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with this library; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20  *
21  * Initial developers: M. Alia, A. Lefebvre
22  */
23
24 package org.objectweb.medor.query.lib;
25
26 import org.objectweb.medor.expression.api.Expression;
27 import org.objectweb.medor.query.api.OperationType;
28 import org.objectweb.medor.query.api.QueryTree;
29
30 /**
31  *
32  * @author Sebastien Chassande-Barrioz
33  */
34 public class JoinProject extends BasicQueryNode {
35
36     private boolean outer = true;
37
38     public JoinProject() {
39     }
40
41     public JoinProject(boolean outer) {
42         this.outer = outer;
43     }
44
45     /**
46      * Basic constructor. Fields and filter must be added later.
47      */
48     public JoinProject(String JavaDoc name) {
49         super(name);
50     }
51
52     public JoinProject(String JavaDoc name, boolean outer) {
53         super(name);
54         this.outer = outer;
55     }
56
57     /**
58      * Basic constructor. Fields must be added later.
59      */
60         public JoinProject(Expression filter, String JavaDoc name) {
61                 super(name);
62                 this.setQueryFilter(filter);
63         }
64
65     public JoinProject(Expression filter, String JavaDoc name, boolean outer) {
66                 super(name);
67                 this.setQueryFilter(filter);
68         this.outer = outer;
69     }
70
71         public short getType() {
72                 return OperationType.JOIN_PROJECT;
73         }
74
75     protected void updateChildren() {
76         super.updateChildren();
77         for (int i = 0; i < children.size(); i++) {
78             setOuter((QueryTree) children.get(i), outer);
79         }
80     }
81
82 }
83
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