01: /*
02: * Copyright 2006 Sun Microsystems, Inc. All Rights Reserved.
03: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04: *
05: * This code is free software; you can redistribute it and/or modify it
06: * under the terms of the GNU General Public License version 2 only, as
07: * published by the Free Software Foundation. Sun designates this
08: * particular file as subject to the "Classpath" exception as provided
09: * by Sun in the LICENSE file that accompanied this code.
10: *
11: * This code is distributed in the hope that it will be useful, but WITHOUT
12: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14: * version 2 for more details (a copy is included in the LICENSE file that
15: * accompanied this code).
16: *
17: * You should have received a copy of the GNU General Public License version
18: * 2 along with this work; if not, write to the Free Software Foundation,
19: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20: *
21: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22: * CA 95054 USA or visit www.sun.com if you need additional information or
23: * have any questions.
24: */
25:
26: package com.sun.xml.internal.rngom.binary;
27:
28: import com.sun.xml.internal.rngom.binary.visitor.PatternFunction;
29: import com.sun.xml.internal.rngom.binary.visitor.PatternVisitor;
30: import org.relaxng.datatype.Datatype;
31:
32: public class ValuePattern extends StringPattern {
33: Object obj;
34: Datatype dt;
35:
36: ValuePattern(Datatype dt, Object obj) {
37: super (combineHashCode(VALUE_HASH_CODE, obj.hashCode()));
38: this .dt = dt;
39: this .obj = obj;
40: }
41:
42: boolean samePattern(Pattern other) {
43: if (getClass() != other.getClass())
44: return false;
45: if (!(other instanceof ValuePattern))
46: return false;
47: return (dt.equals(((ValuePattern) other).dt) && dt.sameValue(
48: obj, ((ValuePattern) other).obj));
49: }
50:
51: public void accept(PatternVisitor visitor) {
52: visitor.visitValue(dt, obj);
53: }
54:
55: public Object apply(PatternFunction f) {
56: return f.caseValue(this );
57: }
58:
59: void checkRestrictions(int context, DuplicateAttributeDetector dad,
60: Alphabet alpha) throws RestrictionViolationException {
61: switch (context) {
62: case START_CONTEXT:
63: throw new RestrictionViolationException(
64: "start_contains_value");
65: }
66: }
67:
68: Datatype getDatatype() {
69: return dt;
70: }
71:
72: Object getValue() {
73: return obj;
74: }
75:
76: }
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