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Java > Open Source Codes > com > caucho > xsl > java > XslProcessingInstruction


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source 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, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  * Free SoftwareFoundation, Inc.
23  * 59 Temple Place, Suite 330
24  * Boston, MA 02111-1307 USA
25  *
26  * @author Scott Ferguson
27  */
28
29 package com.caucho.xsl.java;
30
31 import com.caucho.java.JavaWriter;
32 import com.caucho.xml.QName;
33 import com.caucho.xsl.XslParseException;
34
35 /**
36  * Represents an xsl:processing-instructionny node from the stylesheet.
37  */
38 public class XslProcessingInstruction extends XslNode {
39   private String JavaDoc _name;
40
41   /**
42    * Returns the attribute name.
43    */
44   public String JavaDoc getTagName()
45   {
46     return "xsl:processing-instruction";
47   }
48   
49   /**
50    * Adds an attribute.
51    */
52   public void addAttribute(QName name, String JavaDoc value)
53     throws XslParseException
54   {
55     if (name.getName().equals("name"))
56       _name = value;
57     else
58       super.addAttribute(name, value);
59   }
60
61   /**
62    * Ends the attributes.
63    */
64   public void endAttributes()
65     throws XslParseException
66   {
67     if (_name == null)
68       throw error(L.l("xsl:processing-instruction needs a 'name' attribute."));
69   }
70
71   /**
72    * Generates the code for the tag
73    *
74    * @param out the output writer for the generated java.
75    */
76   public void generate(JavaWriter out)
77     throws Exception JavaDoc
78   {
79     out.println("out.pushPi();");
80       
81     generateChildren(out);
82     
83     out.print("out.popPi(");
84     generateString(out, _name, '+');
85     out.println(");");
86   }
87 }
88
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