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 DataPattern extends StringPattern {
33: private Datatype dt;
34:
35: DataPattern(Datatype dt) {
36: super (combineHashCode(DATA_HASH_CODE, dt.hashCode()));
37: this .dt = dt;
38: }
39:
40: boolean samePattern(Pattern other) {
41: if (other.getClass() != this .getClass())
42: return false;
43: return dt.equals(((DataPattern) other).dt);
44: }
45:
46: public void accept(PatternVisitor visitor) {
47: visitor.visitData(dt);
48: }
49:
50: public Object apply(PatternFunction f) {
51: return f.caseData(this );
52: }
53:
54: Datatype getDatatype() {
55: return dt;
56: }
57:
58: boolean allowsAnyString() {
59: return false;
60: // return dt instanceof Datatype2 && ((Datatype2)dt).alwaysValid();
61: }
62:
63: void checkRestrictions(int context, DuplicateAttributeDetector dad,
64: Alphabet alpha) throws RestrictionViolationException {
65: switch (context) {
66: case START_CONTEXT:
67: throw new RestrictionViolationException(
68: "start_contains_data");
69: }
70: }
71: }
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