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Java > Open Source Codes > org > netbeans > modules > db > sql > visualeditor > querymodel > OrNode


1 /*
2  * The contents of this file are subject to the terms of the Common Development
3  * and Distribution License (the License). You may not use this file except in
4  * compliance with the License.
5  *
6  * You can obtain a copy of the License at http://www.netbeans.org/cddl.html
7  * or http://www.netbeans.org/cddl.txt.
8  *
9  * When distributing Covered Code, include this CDDL Header Notice in each file
10  * and include the License file at http://www.netbeans.org/cddl.txt.
11  * If applicable, add the following below the CDDL Header, with the fields
12  * enclosed by brackets [] replaced by your own identifying information:
13  * "Portions Copyrighted [year] [name of copyright owner]"
14  *
15  * The Original Software is NetBeans. The Initial Developer of the Original
16  * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
17  * Microsystems, Inc. All Rights Reserved.
18  */
19 package org.netbeans.modules.db.sql.visualeditor.querymodel;
20
21 import java.util.ArrayList JavaDoc;
22 import java.util.List JavaDoc;
23 import java.util.Collection JavaDoc;
24
25 /**
26  * Represents a SQL Or term in a clause
27  * Example Form: ((a.x = b.y) OR (c.w = d.v))
28  */
29 public class OrNode extends BooleanExpressionList implements Or {
30
31     //
32 // Constructors
33 //
34 public OrNode(ArrayList JavaDoc expressions) {
35        _expressions = new ArrayList JavaDoc();
36        BooleanExpressionList.flattenExpression(expressions, OrNode.class, _expressions);
37     }
38
39     //
40 // Methods
41 //
42
43     // Return the Where clause as a SQL string
44 public String JavaDoc genText() {
45         if (_expressions==null)
46             return ""; // NOI18N
47 String JavaDoc res = " ( " + ((Expression)_expressions.get(0)).genText(); // NOI18N
48
49         for (int i=1; i<_expressions.size(); i++)
50             res += " OR " + ((Expression)_expressions.get(i)).genText(); // NOI18N
51
52         res += " ) "; // NOI18N
53
54         return res;
55     }
56
57     public String JavaDoc toString() {
58         return ""; // NOI18N
59 }
60
61 }
62
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