001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common Development
008: * and Distribution License("CDDL") (collectively, the "License"). You
009: * may not use this file except in compliance with the License. You can obtain
010: * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
011: * or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
012: * language governing permissions and limitations under the License.
013: *
014: * When distributing the software, include this License Header Notice in each
015: * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
016: * Sun designates this particular file as subject to the "Classpath" exception
017: * as provided by Sun in the GPL Version 2 section of the License file that
018: * accompanied this code. If applicable, add the following below the License
019: * Header, with the fields enclosed by brackets [] replaced by your own
020: * identifying information: "Portions Copyrighted [year]
021: * [name of copyright owner]"
022: *
023: * Contributor(s):
024: *
025: * If you wish your version of this file to be governed by only the CDDL or
026: * only the GPL Version 2, indicate your decision by adding "[Contributor]
027: * elects to include this software in this distribution under the [CDDL or GPL
028: * Version 2] license." If you don't indicate a single choice of license, a
029: * recipient has the option to distribute your version of this file under
030: * either the CDDL, the GPL Version 2 or to extend the choice of license to
031: * its licensees as provided above. However, if you add GPL Version 2 code
032: * and therefore, elected the GPL Version 2 license, then the option applies
033: * only if the new code is made subject to such option by the copyright
034: * holder.
035: */
036:
037: package com.sun.xml.bind.v2.runtime.property;
038:
039: import java.io.IOException;
040:
041: import javax.xml.stream.XMLStreamException;
042:
043: import com.sun.xml.bind.api.AccessorException;
044: import com.sun.xml.bind.v2.model.core.PropertyKind;
045: import com.sun.xml.bind.v2.model.runtime.RuntimeElementPropertyInfo;
046: import com.sun.xml.bind.v2.model.runtime.RuntimeTypeRef;
047: import com.sun.xml.bind.v2.runtime.JAXBContextImpl;
048: import com.sun.xml.bind.v2.runtime.Name;
049: import com.sun.xml.bind.v2.runtime.XMLSerializer;
050: import com.sun.xml.bind.v2.runtime.reflect.Accessor;
051: import com.sun.xml.bind.v2.runtime.reflect.TransducedAccessor;
052: import com.sun.xml.bind.v2.runtime.unmarshaller.ChildLoader;
053: import com.sun.xml.bind.v2.runtime.unmarshaller.DefaultValueLoaderDecorator;
054: import com.sun.xml.bind.v2.runtime.unmarshaller.LeafPropertyLoader;
055: import com.sun.xml.bind.v2.runtime.unmarshaller.Loader;
056: import com.sun.xml.bind.v2.runtime.unmarshaller.XsiNilLoader;
057: import com.sun.xml.bind.v2.util.QNameMap;
058:
059: import org.xml.sax.SAXException;
060:
061: /**
062: * {@link Property} that contains a leaf value.
063: *
064: * @author Kohsuke Kawaguchi (kk@kohsuke.org)
065: */
066: final class SingleElementLeafProperty<BeanT> extends
067: PropertyImpl<BeanT> {
068:
069: private final Name tagName;
070: private final boolean nillable;
071: private final Accessor acc;
072: private final String defaultValue;
073: private final TransducedAccessor<BeanT> xacc;
074:
075: public SingleElementLeafProperty(JAXBContextImpl context,
076: RuntimeElementPropertyInfo prop) {
077: super (context, prop);
078: RuntimeTypeRef ref = prop.getTypes().get(0);
079: tagName = context.nameBuilder.createElementName(ref
080: .getTagName());
081: assert tagName != null;
082: nillable = ref.isNillable();
083: defaultValue = ref.getDefaultValue();
084: this .acc = prop.getAccessor().optimize(context);
085:
086: xacc = TransducedAccessor.get(context, ref);
087: assert xacc != null;
088: }
089:
090: public void reset(BeanT o) throws AccessorException {
091: acc.set(o, null);
092: }
093:
094: public String getIdValue(BeanT bean) throws AccessorException,
095: SAXException {
096: return xacc.print(bean).toString();
097: }
098:
099: public void serializeBody(BeanT o, XMLSerializer w, Object outerPeer)
100: throws SAXException, AccessorException, IOException,
101: XMLStreamException {
102: boolean hasValue = xacc.hasValue(o);
103: if (hasValue) {
104: xacc.writeLeafElement(w, tagName, o, fieldName);
105: } else if (nillable) {
106: w.startElement(tagName, null);
107: w.writeXsiNilTrue();
108: w.endElement();
109: }
110: }
111:
112: public void buildChildElementUnmarshallers(UnmarshallerChain chain,
113: QNameMap<ChildLoader> handlers) {
114: Loader l = new LeafPropertyLoader(xacc);
115: if (defaultValue != null)
116: l = new DefaultValueLoaderDecorator(l, defaultValue);
117: if (nillable || chain.context.allNillable)
118: l = new XsiNilLoader.Single(l, acc);
119: handlers.put(tagName, new ChildLoader(l, null));
120: }
121:
122: public PropertyKind getKind() {
123: return PropertyKind.ELEMENT;
124: }
125:
126: @Override
127: public Accessor getElementPropertyAccessor(String nsUri,
128: String localName) {
129: if (tagName.equals(nsUri, localName))
130: return acc;
131: else
132: return null;
133: }
134: }
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