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Java > Open Source Codes > org > xquark > xquery > parser > CastTreatExpression


1 /*
2  * This file belongs to the XQuark distribution.
3  * Copyright (C) 2003 Universite de Versailles Saint-Quentin.
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2.1 of the License, or (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  * Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public
16  * License along with this program; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307.
18  * You can also get it at http://www.gnu.org/licenses/lgpl.html
19  *
20  * For more information on this software, see http://www.xquark.org.
21  */
22
23 package org.xquark.xquery.parser;
24
25 import org.xquark.xquery.typing.TypeException;
26
27 public class CastTreatExpression extends XQueryUnaryOperatorExpression implements Cloneable JavaDoc {
28
29     private static final String JavaDoc RCSRevision = "$Revision: 1.12 $";
30     private static final String JavaDoc RCSName = "$Name: $";
31
32     // cannot be null
33 // W3C WD 16 August 2002
34 // change QName in SequenceTypeExpression
35 protected SequenceType sequenceType = null;
36     // cannot be -1
37 protected int operator = -1;
38
39     // #############################################################################
40 // VISITOR STUFF
41 // #############################################################################
42
43     public void accept(ParserVisitor visitor) throws XQueryException {
44         visitor.visit(this);
45     }
46
47     // #############################################################################
48 // CONSTRUCTOR STUFF
49 // #############################################################################
50
51     public CastTreatExpression(int operator, SequenceType sequenceType, XQueryExpression expression, XQueryModule parentModule) throws TypeException, XQueryException {
52         super(expression);
53         setSequenceType(sequenceType);
54         setOperator(operator);
55         setParentModule(parentModule);
56         if (parentModule != null && parentModule.getStaticContext().getTypeVisitor() != null)
57             accept(parentModule.getStaticContext().getTypeVisitor());
58     }
59
60     // #############################################################################
61 // ATTRIBUTE ACCESS STUFF
62 // #############################################################################
63
64     // get
65 public SequenceType getSequenceType() {
66         return sequenceType;
67     }
68     public int getOperator() {
69         return operator;
70     }
71
72     public void setSequenceType(SequenceType sequenceType) throws XQueryException {
73         // cannot be null
74 if (sequenceType == null)
75             throw new XQueryException("sequenceType of CastTreatExpression cannot be null");
76         this.sequenceType = sequenceType;
77         // set parent
78 this.sequenceType.setParentExpression(this);
79         this.sequenceType.setParentModule(parentModule);
80     }
81
82     public void setOperator(int operator) throws XQueryException {
83         // cannot be -1
84 if (operator == -1)
85             throw new XQueryException("operator of CastTreatExpression cannot be -1");
86         this.operator = operator;
87     }
88
89     // #############################################################################
90 // CLONE STUFF
91 // #############################################################################
92
93     public void addParentExpression(XQueryExpression parentExpression) {
94         addParentExpression(parentExpression);
95         sequenceType.addParentExpression(parentExpression);
96         expression.addParentExpression(parentExpression);
97     }
98
99 }
100
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