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Java > Open Source Codes > com > genimen > djeneric > tools > scriptengine > core > nodes > CharNode


1 /*
2  * Copyright (c) 2001-2005 by Genimen BV (www.genimen.com) All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, is permitted provided that the following conditions are met: -
6  * Redistributions of source code must retain the above copyright notice, this
7  * list of conditions and the following disclaimer. - Redistributions in binary
8  * form must reproduce the above copyright notice, this list of conditions and
9  * the following disclaimer in the documentation and/or other materials
10  * provided with the distribution. - All advertising materials mentioning
11  * features or use of this software must display the following acknowledgment:
12  * "This product includes Djeneric." - Products derived from this software may
13  * not be called "Djeneric" nor may "Djeneric" appear in their names without
14  * prior written permission of Genimen BV. - Redistributions of any form
15  * whatsoever must retain the following acknowledgment: "This product includes
16  * Djeneric."
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS IS"
19  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED. IN NO EVENT SHALL GENIMEN BV, DJENERIC.ORG, OR CONTRIBUTORS
22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28  * POSSIBILITY OF SUCH DAMAGE.
29  */
30 package com.genimen.djeneric.tools.scriptengine.core.nodes;
31
32 import java.util.HashMap JavaDoc;
33
34 import com.genimen.djeneric.tools.scriptengine.core.DjScriptParserEngine;
35 import com.genimen.djeneric.tools.scriptengine.core.SimpleNode;
36 import com.genimen.djeneric.tools.scriptengine.core.util.DjScriptCompileTimeScope;
37 import com.genimen.djeneric.tools.scriptengine.core.util.DjScriptExecutionTimeScope;
38
39 public class CharNode extends SimpleNode implements ValueExpression
40 {
41   String JavaDoc _value;
42
43   public CharNode(int i)
44   {
45     super(i);
46   }
47
48   public CharNode(DjScriptParserEngine p, int i)
49   {
50     super(p, i);
51   }
52
53   public String JavaDoc getName()
54   {
55     return toString();
56   }
57
58   public String JavaDoc toString()
59   {
60     return _value;
61   }
62
63   public Object JavaDoc getValue(DjScriptExecutionTimeScope context)
64   {
65     return _value;
66   }
67
68   public void setValue(String JavaDoc v)
69   { // Strip the quotes
70 v = v.substring(1);
71     v = v.substring(0, v.length() - 1);
72
73     _value = String.valueOf(StringNode.translateEscapes(v).charAt(0));
74   }
75
76   public void translateOql(DjScriptExecutionTimeScope ctxt, StringBuffer JavaDoc result, HashMap JavaDoc parameters)
77   {
78     result.append("'");
79     result.append(_value);
80     result.append("'");
81   }
82
83   public String JavaDoc getValidatedTypeName(DjScriptCompileTimeScope context)
84   {
85     return String JavaDoc.class.getName();
86   }
87
88 }
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