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Java > Open Source Codes > com > sun > org > apache > xerces > internal > impl > dv > xs > ListDV


1 /*
2  * The Apache Software License, Version 1.1
3  *
4  *
5  * Copyright (c) 2001, 2002 The Apache Software Foundation. All rights
6  * reserved.
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8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
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13  * notice, this list of conditions and the following disclaimer.
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20  * 3. The end-user documentation included with the redistribution,
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24  * Alternately, this acknowledgment may appear in the software itself,
25  * if and wherever such third-party acknowledgments normally appear.
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27  * 4. The names "Xerces" and "Apache Software Foundation" must
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29  * software without prior written permission. For written
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50  * This software consists of voluntary contributions made by many
51  * individuals on behalf of the Apache Software Foundation and was
52  * originally based on software copyright (c) 2001, International
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56  */

57
58 package com.sun.org.apache.xerces.internal.impl.dv.xs;
59
60 import com.sun.org.apache.xerces.internal.impl.dv.InvalidDatatypeValueException;
61 import com.sun.org.apache.xerces.internal.impl.dv.ValidationContext;
62
63 /**
64  * Represent the schema list types
65  *
66  * @author Neeraj Bajaj, Sun Microsystems, inc.
67  * @author Sandy Gao, IBM
68  *
69  * @version $Id: ListDV.java,v 1.5 2003/01/21 16:47:11 neilg Exp $
70  */

71 public class ListDV extends TypeValidator{
72
73     public short getAllowedFacets(){
74           return (XSSimpleTypeDecl.FACET_LENGTH | XSSimpleTypeDecl.FACET_MINLENGTH | XSSimpleTypeDecl.FACET_MAXLENGTH | XSSimpleTypeDecl.FACET_PATTERN | XSSimpleTypeDecl.FACET_ENUMERATION | XSSimpleTypeDecl.FACET_WHITESPACE );
75     }
76
77     // this method should never be called: XSSimpleTypeDecl is responsible for
78
// calling the item type for the convertion
79
public Object JavaDoc getActualValue(String JavaDoc content, ValidationContext context) throws InvalidDatatypeValueException{
80         return content;
81     }
82
83     // length of a list type is the number of items in the list
84
public int getDataLength(Object JavaDoc value) {
85         return ((ListData)value).length();
86     }
87
88     final static class ListData {
89         final Object JavaDoc[] data;
90         private String JavaDoc canonical;
91         public ListData(Object JavaDoc[] data) {
92             this.data = data;
93         }
94         public synchronized String JavaDoc toString() {
95             if (canonical == null) {
96                 int len = data.length;
97                 StringBuffer JavaDoc buf = new StringBuffer JavaDoc();
98                 if (len > 0) {
99                     buf.append(data[0].toString());
100                 }
101                 for (int i = 1; i < len; i++) {
102                     buf.append(' ');
103                     buf.append(data[i].toString());
104                 }
105                 canonical = buf.toString();
106             }
107             return canonical;
108         }
109         public int length() {
110             return data.length;
111         }
112         public Object JavaDoc item(int index) {
113             return data[index];
114         }
115         public boolean equals(Object JavaDoc obj) {
116             if (!(obj instanceof ListData))
117                 return false;
118             Object JavaDoc[] odata = ((ListData)obj).data;
119     
120             int count = data.length;
121             if (count != odata.length)
122                 return false;
123     
124             for (int i = 0 ; i < count ; i++) {
125                 if (!data[i].equals(odata[i]))
126                     return false;
127             }//end of loop
128

129             //everything went fine.
130
return true;
131         }
132     }
133 } // class ListDV
134

135
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