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Java > Open Source Codes > com > sun > org > apache > xpath > internal > operations > String


1 /*
2  * Copyright 1999-2004 The Apache Software Foundation.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 /*
17  * $Id: String.java,v 1.7 2004/02/17 04:35:12 minchau Exp $
18  */
19 package com.sun.org.apache.xpath.internal.operations;
20
21 import com.sun.org.apache.xpath.internal.objects.XObject;
22 import com.sun.org.apache.xpath.internal.objects.XString;
23
24 /**
25  * The 'string()' operation expression executer.
26  */
27 public class String extends UnaryOperation
28 {
29
30   /**
31    * Apply the operation to two operands, and return the result.
32    *
33    *
34    * @param right non-null reference to the evaluated right operand.
35    *
36    * @return non-null reference to the XObject that represents the result of the operation.
37    *
38    * @throws javax.xml.transform.TransformerException
39    */
40   public XObject operate(XObject right) throws javax.xml.transform.TransformerException JavaDoc
41   {
42     return (XString)right.xstr(); // semi-safe cast.
43 }
44 }
45
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