1 /* 2 * Copyright (c) 1997, 2012, 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 */ 25 26 package com.sun.xml.internal.bind.v2.runtime; 27 28 import java.io.IOException; 29 30 import javax.xml.namespace.QName; 31 import javax.xml.stream.XMLStreamException; 32 33 import com.sun.istack.internal.NotNull; 34 import com.sun.xml.internal.bind.api.AccessorException; 35 36 import org.xml.sax.SAXException; 37 38 /** 39 * {@link Transducer} that delegates to another {@link Transducer}. 40 * 41 * @author Kohsuke Kawaguchi 42 */ 43 public abstract class FilterTransducer<T> implements Transducer<T> { 44 protected final Transducer<T> core; 45 46 protected FilterTransducer(Transducer<T> core) { 47 this.core = core; 48 } 49 50 public final boolean isDefault() { 51 // this must be used as a decorating transducer, 52 // so it may never be default. 53 return false; 54 } 55 56 public boolean useNamespace() { 57 return core.useNamespace(); 58 } 59 60 public void declareNamespace(T o, XMLSerializer w) throws AccessorException { 61 core.declareNamespace(o, w); 62 } 63 64 public @NotNull CharSequence print(@NotNull T o) throws AccessorException { 65 return core.print(o); 66 } 67 68 public T parse(CharSequence lexical) throws AccessorException, SAXException { 69 return core.parse(lexical); 70 } 71 72 public void writeText(XMLSerializer w, T o, String fieldName) throws IOException, SAXException, XMLStreamException, AccessorException { 73 core.writeText(w, o, fieldName); 74 } 75 76 public void writeLeafElement(XMLSerializer w, Name tagName, T o, String fieldName) throws IOException, SAXException, XMLStreamException, AccessorException { 77 core.writeLeafElement(w,tagName,o,fieldName); 78 } 79 80 public QName getTypeName(T instance) { 81 return null; 82 } 83 }