Thu, 31 Aug 2017 15:18:52 +0800
merge
1 /*
2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
26 package com.sun.xml.internal.xsom.impl;
28 import com.sun.xml.internal.xsom.XSElementDecl;
29 import com.sun.xml.internal.xsom.XSIdentityConstraint;
30 import com.sun.xml.internal.xsom.XSModelGroup;
31 import com.sun.xml.internal.xsom.XSModelGroupDecl;
32 import com.sun.xml.internal.xsom.XSTerm;
33 import com.sun.xml.internal.xsom.XSType;
34 import com.sun.xml.internal.xsom.XSWildcard;
35 import com.sun.xml.internal.xsom.XmlString;
36 import com.sun.xml.internal.xsom.impl.parser.PatcherManager;
37 import com.sun.xml.internal.xsom.impl.parser.SchemaDocumentImpl;
38 import com.sun.xml.internal.xsom.visitor.XSFunction;
39 import com.sun.xml.internal.xsom.visitor.XSTermFunction;
40 import com.sun.xml.internal.xsom.visitor.XSTermFunctionWithParam;
41 import com.sun.xml.internal.xsom.visitor.XSTermVisitor;
42 import com.sun.xml.internal.xsom.visitor.XSVisitor;
43 import org.xml.sax.Locator;
45 import java.util.Collections;
46 import java.util.HashSet;
47 import java.util.List;
48 import java.util.Set;
50 public class ElementDecl extends DeclarationImpl implements XSElementDecl, Ref.Term
51 {
52 public ElementDecl( PatcherManager reader, SchemaDocumentImpl owner,
53 AnnotationImpl _annon, Locator _loc, ForeignAttributesImpl fa,
54 String _tns, String _name, boolean _anonymous,
56 XmlString _defv, XmlString _fixedv,
57 boolean _nillable, boolean _abstract, Boolean _form,
58 Ref.Type _type, Ref.Element _substHead,
59 int _substDisallowed, int _substExcluded,
60 List<IdentityConstraintImpl> idConstraints) {
62 super(owner,_annon,_loc,fa,_tns,_name,_anonymous);
64 this.defaultValue = _defv;
65 this.fixedValue = _fixedv;
66 this.nillable = _nillable;
67 this._abstract = _abstract;
68 this.form = _form;
69 this.type = _type;
70 this.substHead = _substHead;
71 this.substDisallowed = _substDisallowed;
72 this.substExcluded = _substExcluded;
73 this.idConstraints = Collections.unmodifiableList((List<? extends XSIdentityConstraint>)idConstraints);
75 for (IdentityConstraintImpl idc : idConstraints)
76 idc.setParent(this);
78 if(type==null)
79 throw new IllegalArgumentException();
80 }
82 private XmlString defaultValue;
83 public XmlString getDefaultValue() { return defaultValue; }
85 private XmlString fixedValue;
86 public XmlString getFixedValue() { return fixedValue; }
88 private boolean nillable;
89 public boolean isNillable() { return nillable; }
91 private boolean _abstract;
92 public boolean isAbstract() { return _abstract; }
94 private Ref.Type type;
95 public XSType getType() { return type.getType(); }
97 private Ref.Element substHead;
98 public XSElementDecl getSubstAffiliation() {
99 if(substHead==null) return null;
100 return substHead.get();
101 }
103 private int substDisallowed;
104 public boolean isSubstitutionDisallowed( int method ) {
105 return (substDisallowed&method)!=0;
106 }
108 private int substExcluded;
109 public boolean isSubstitutionExcluded( int method ) {
110 return (substExcluded&method)!=0;
111 }
113 private final List<XSIdentityConstraint> idConstraints;
114 public List<XSIdentityConstraint> getIdentityConstraints() {
115 return idConstraints;
116 }
118 private Boolean form;
119 public Boolean getForm() {
120 return form;
121 }
124 /**
125 * @deprecated
126 */
127 public XSElementDecl[] listSubstitutables() {
128 Set<? extends XSElementDecl> s = getSubstitutables();
129 return s.toArray(new XSElementDecl[s.size()]);
130 }
132 /** Set that represents element decls that can substitute this element. */
133 private Set<XSElementDecl> substitutables = null;
135 /** Unmodifieable view of {@link #substitutables}. */
136 private Set<XSElementDecl> substitutablesView = null;
138 public Set<? extends XSElementDecl> getSubstitutables() {
139 if( substitutables==null ) {
140 // if the field is null by the time this method
141 // is called, it means this element is substitutable by itself only.
142 substitutables = substitutablesView = Collections.singleton((XSElementDecl)this);
143 }
144 return substitutablesView;
145 }
147 protected void addSubstitutable( ElementDecl decl ) {
148 if( substitutables==null ) {
149 substitutables = new HashSet<XSElementDecl>();
150 substitutables.add(this);
151 substitutablesView = Collections.unmodifiableSet(substitutables);
152 }
153 substitutables.add(decl);
154 }
157 public void updateSubstitutabilityMap() {
158 ElementDecl parent = this;
159 XSType type = this.getType();
161 boolean rused = false;
162 boolean eused = false;
164 while( (parent=(ElementDecl)parent.getSubstAffiliation())!=null ) {
166 if(parent.isSubstitutionDisallowed(XSType.SUBSTITUTION))
167 continue;
169 boolean rd = parent.isSubstitutionDisallowed(XSType.RESTRICTION);
170 boolean ed = parent.isSubstitutionDisallowed(XSType.EXTENSION);
172 if( (rd && rused) || ( ed && eused ) ) continue;
174 XSType parentType = parent.getType();
175 while (type!=parentType) {
176 if(type.getDerivationMethod()==XSType.RESTRICTION) rused = true;
177 else eused = true;
179 type = type.getBaseType();
180 if(type==null) // parentType and type doesn't share the common base type. a bug in the schema.
181 break;
183 if( type.isComplexType() ) {
184 rd |= type.asComplexType().isSubstitutionProhibited(XSType.RESTRICTION);
185 ed |= type.asComplexType().isSubstitutionProhibited(XSType.EXTENSION);
186 }
187 if (getRoot().getAnyType().equals(type)) break;
188 }
190 if( (rd && rused) || ( ed && eused ) ) continue;
192 // this element can substitute "parent"
193 parent.addSubstitutable(this);
194 }
195 }
197 public boolean canBeSubstitutedBy(XSElementDecl e) {
198 return getSubstitutables().contains(e);
199 }
201 public boolean isWildcard() { return false; }
202 public boolean isModelGroupDecl() { return false; }
203 public boolean isModelGroup() { return false; }
204 public boolean isElementDecl() { return true; }
206 public XSWildcard asWildcard() { return null; }
207 public XSModelGroupDecl asModelGroupDecl() { return null; }
208 public XSModelGroup asModelGroup() { return null; }
209 public XSElementDecl asElementDecl() { return this; }
214 public void visit( XSVisitor visitor ) {
215 visitor.elementDecl(this);
216 }
217 public void visit( XSTermVisitor visitor ) {
218 visitor.elementDecl(this);
219 }
220 public Object apply( XSTermFunction function ) {
221 return function.elementDecl(this);
222 }
224 public <T,P> T apply(XSTermFunctionWithParam<T, P> function, P param) {
225 return function.elementDecl(this,param);
226 }
228 public Object apply( XSFunction function ) {
229 return function.elementDecl(this);
230 }
233 // Ref.Term implementation
234 public XSTerm getTerm() { return this; }
235 }