aoqi@0: /* aoqi@0: * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. aoqi@0: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. aoqi@0: * aoqi@0: * This code is free software; you can redistribute it and/or modify it aoqi@0: * under the terms of the GNU General Public License version 2 only, as aoqi@0: * published by the Free Software Foundation. Oracle designates this aoqi@0: * particular file as subject to the "Classpath" exception as provided aoqi@0: * by Oracle in the LICENSE file that accompanied this code. aoqi@0: * aoqi@0: * This code is distributed in the hope that it will be useful, but WITHOUT aoqi@0: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or aoqi@0: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License aoqi@0: * version 2 for more details (a copy is included in the LICENSE file that aoqi@0: * accompanied this code). aoqi@0: * aoqi@0: * You should have received a copy of the GNU General Public License version aoqi@0: * 2 along with this work; if not, write to the Free Software Foundation, aoqi@0: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. aoqi@0: * aoqi@0: * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA aoqi@0: * or visit www.oracle.com if you need additional information or have any aoqi@0: * questions. aoqi@0: */ aoqi@0: aoqi@0: package com.sun.xml.internal.bind.v2.model.impl; aoqi@0: aoqi@0: import java.util.Iterator; aoqi@0: aoqi@0: import javax.xml.bind.annotation.XmlEnum; aoqi@0: import javax.xml.bind.annotation.XmlEnumValue; aoqi@0: import javax.xml.bind.annotation.XmlRootElement; aoqi@0: import javax.xml.namespace.QName; aoqi@0: aoqi@0: import com.sun.xml.internal.bind.v2.model.annotation.Locatable; aoqi@0: import com.sun.xml.internal.bind.v2.model.core.EnumConstant; aoqi@0: import com.sun.xml.internal.bind.v2.model.core.EnumLeafInfo; aoqi@0: import com.sun.xml.internal.bind.v2.model.core.NonElement; aoqi@0: import com.sun.xml.internal.bind.v2.model.core.Element; aoqi@0: import com.sun.xml.internal.bind.v2.model.core.ClassInfo; aoqi@0: import com.sun.xml.internal.bind.v2.runtime.Location; aoqi@0: import java.util.Collection; aoqi@0: import javax.xml.bind.annotation.XmlSchemaType; aoqi@0: aoqi@0: /** aoqi@0: * {@link EnumLeafInfo} implementation. aoqi@0: * aoqi@0: * @author Kohsuke Kawaguchi aoqi@0: */ aoqi@0: class EnumLeafInfoImpl extends TypeInfoImpl aoqi@0: implements EnumLeafInfo, Element, Iterable> { aoqi@0: aoqi@0: /** aoqi@0: * The enum class whose information this object represents. aoqi@0: */ aoqi@0: /*package*/ final C clazz; aoqi@0: aoqi@0: NonElement baseType; aoqi@0: aoqi@0: private final T type; aoqi@0: aoqi@0: /** aoqi@0: * Can be null for anonymous types. aoqi@0: */ aoqi@0: private final QName typeName; aoqi@0: aoqi@0: /** aoqi@0: * All the {@link EnumConstantImpl}s are linked in this list. aoqi@0: */ aoqi@0: private EnumConstantImpl firstConstant; aoqi@0: aoqi@0: /** aoqi@0: * If this enum is also bound to an element, that tag name. aoqi@0: * Or else null. aoqi@0: */ aoqi@0: private QName elementName; aoqi@0: aoqi@0: /** aoqi@0: * Used to recognize token vs string. aoqi@0: */ aoqi@0: protected boolean tokenStringType; aoqi@0: aoqi@0: /** aoqi@0: * @param clazz aoqi@0: * @param type aoqi@0: * clazz and type should both point to the enum class aoqi@0: * that this {@link EnumLeafInfo} represents. aoqi@0: * Because of the type parameterization we have to take them separately. aoqi@0: */ aoqi@0: public EnumLeafInfoImpl(ModelBuilder builder, aoqi@0: Locatable upstream, C clazz, T type ) { aoqi@0: super(builder,upstream); aoqi@0: this.clazz = clazz; aoqi@0: this.type = type; aoqi@0: aoqi@0: elementName = parseElementName(clazz); aoqi@0: aoqi@0: // compute the type name aoqi@0: // TODO: I guess it must be allowed for enums to have @XmlElement aoqi@0: typeName = parseTypeName(clazz); aoqi@0: aoqi@0: // locate the base type. aoqi@0: // this can be done eagerly because there shouldn't be no cycle. aoqi@0: XmlEnum xe = builder.reader.getClassAnnotation(XmlEnum.class, clazz, this); aoqi@0: if(xe!=null) { aoqi@0: T base = builder.reader.getClassValue(xe, "value"); aoqi@0: baseType = builder.getTypeInfo(base,this); aoqi@0: } else { aoqi@0: baseType = builder.getTypeInfo(builder.nav.ref(String.class),this); aoqi@0: } aoqi@0: } aoqi@0: aoqi@0: /** aoqi@0: * Build {@link EnumConstant}s and discover/report any error in it. aoqi@0: */ aoqi@0: protected void calcConstants() { aoqi@0: EnumConstantImpl last = null; aoqi@0: aoqi@0: // first check if we represent xs:token derived type aoqi@0: Collection fields = nav().getDeclaredFields(clazz); aoqi@0: for (F f : fields) { aoqi@0: if (nav().isSameType(nav().getFieldType(f), nav().ref(String.class))) { aoqi@0: XmlSchemaType schemaTypeAnnotation = builder.reader.getFieldAnnotation(XmlSchemaType.class, f, this); aoqi@0: if (schemaTypeAnnotation != null) { aoqi@0: if ("token".equals(schemaTypeAnnotation.name())) { aoqi@0: tokenStringType = true; aoqi@0: break; aoqi@0: } aoqi@0: }; aoqi@0: } aoqi@0: } aoqi@0: F[] constants = nav().getEnumConstants(clazz); aoqi@0: for( int i=constants.length-1; i>=0; i-- ) { aoqi@0: F constant = constants[i]; aoqi@0: String name = nav().getFieldName(constant); aoqi@0: XmlEnumValue xev = builder.reader.getFieldAnnotation(XmlEnumValue.class, constant, this); aoqi@0: aoqi@0: String literal; aoqi@0: if(xev==null) literal = name; aoqi@0: else literal = xev.value(); aoqi@0: aoqi@0: last = createEnumConstant(name,literal,constant,last); aoqi@0: } aoqi@0: this.firstConstant = last; aoqi@0: } aoqi@0: aoqi@0: protected EnumConstantImpl createEnumConstant(String name, String literal, F constant, EnumConstantImpl last) { aoqi@0: return new EnumConstantImpl(this, name, literal, last); aoqi@0: } aoqi@0: aoqi@0: aoqi@0: public T getType() { aoqi@0: return type; aoqi@0: } aoqi@0: aoqi@0: /** aoqi@0: * aoqi@0: * @return true if enum is restriction/extension from xs:token type, otherwise false aoqi@0: */ aoqi@0: public boolean isToken() { aoqi@0: return tokenStringType; aoqi@0: } aoqi@0: aoqi@0: /** aoqi@0: * Leaf-type cannot be referenced from IDREF. aoqi@0: * aoqi@0: * @deprecated aoqi@0: * why are you calling a method whose return value is always known? aoqi@0: */ aoqi@0: public final boolean canBeReferencedByIDREF() { aoqi@0: return false; aoqi@0: } aoqi@0: aoqi@0: public QName getTypeName() { aoqi@0: return typeName; aoqi@0: } aoqi@0: aoqi@0: public C getClazz() { aoqi@0: return clazz; aoqi@0: } aoqi@0: aoqi@0: public NonElement getBaseType() { aoqi@0: return baseType; aoqi@0: } aoqi@0: aoqi@0: public boolean isSimpleType() { aoqi@0: return true; aoqi@0: } aoqi@0: aoqi@0: public Location getLocation() { aoqi@0: return nav().getClassLocation(clazz); aoqi@0: } aoqi@0: aoqi@0: public Iterable> getConstants() { aoqi@0: if(firstConstant==null) aoqi@0: calcConstants(); aoqi@0: return this; aoqi@0: } aoqi@0: aoqi@0: @Override aoqi@0: public void link() { aoqi@0: // make sure we've computed constants aoqi@0: getConstants(); aoqi@0: super.link(); aoqi@0: } aoqi@0: aoqi@0: /** aoqi@0: * No substitution. aoqi@0: * aoqi@0: * @deprecated if you are invoking this method directly, there's something wrong. aoqi@0: */ aoqi@0: public Element getSubstitutionHead() { aoqi@0: return null; aoqi@0: } aoqi@0: aoqi@0: public QName getElementName() { aoqi@0: return elementName; aoqi@0: } aoqi@0: aoqi@0: public boolean isElement() { aoqi@0: return elementName!=null; aoqi@0: } aoqi@0: aoqi@0: public Element asElement() { aoqi@0: if(isElement()) aoqi@0: return this; aoqi@0: else aoqi@0: return null; aoqi@0: } aoqi@0: aoqi@0: /** aoqi@0: * When a bean binds to an element, it's always through {@link XmlRootElement}, aoqi@0: * so this method always return null. aoqi@0: * aoqi@0: * @deprecated aoqi@0: * you shouldn't be invoking this method on {@link ClassInfoImpl}. aoqi@0: */ aoqi@0: public ClassInfo getScope() { aoqi@0: return null; aoqi@0: } aoqi@0: aoqi@0: public Iterator> iterator() { aoqi@0: return new Iterator>() { aoqi@0: private EnumConstantImpl next = firstConstant; aoqi@0: public boolean hasNext() { aoqi@0: return next!=null; aoqi@0: } aoqi@0: aoqi@0: public EnumConstantImpl next() { aoqi@0: EnumConstantImpl r = next; aoqi@0: next = next.next; aoqi@0: return r; aoqi@0: } aoqi@0: aoqi@0: public void remove() { aoqi@0: throw new UnsupportedOperationException(); aoqi@0: } aoqi@0: }; aoqi@0: } aoqi@0: }