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;
038:
039: import java.io.IOException;
040:
041: import javax.xml.namespace.QName;
042: import javax.xml.stream.XMLStreamException;
043:
044: import com.sun.istack.NotNull;
045: import com.sun.xml.bind.api.AccessorException;
046:
047: import org.xml.sax.SAXException;
048:
049: /**
050: * {@link Transducer} that delegates to another {@link Transducer}.
051: *
052: * @author Kohsuke Kawaguchi
053: */
054: public abstract class FilterTransducer<T> implements Transducer<T> {
055: protected final Transducer<T> core;
056:
057: protected FilterTransducer(Transducer<T> core) {
058: this .core = core;
059: }
060:
061: public final boolean isDefault() {
062: // this must be used as a decorating transducer,
063: // so it may never be default.
064: return false;
065: }
066:
067: public boolean useNamespace() {
068: return core.useNamespace();
069: }
070:
071: public void declareNamespace(T o, XMLSerializer w)
072: throws AccessorException {
073: core.declareNamespace(o, w);
074: }
075:
076: public @NotNull
077: CharSequence print(@NotNull
078: T o) throws AccessorException {
079: return core.print(o);
080: }
081:
082: public T parse(CharSequence lexical) throws AccessorException,
083: SAXException {
084: return core.parse(lexical);
085: }
086:
087: public void writeText(XMLSerializer w, T o, String fieldName)
088: throws IOException, SAXException, XMLStreamException,
089: AccessorException {
090: core.writeText(w, o, fieldName);
091: }
092:
093: public void writeLeafElement(XMLSerializer w, Name tagName, T o,
094: String fieldName) throws IOException, SAXException,
095: XMLStreamException, AccessorException {
096: core.writeLeafElement(w, tagName, o, fieldName);
097: }
098:
099: public QName getTypeName(T instance) {
100: return null;
101: }
102: }
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