GNU Classpath (0.20) | |
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1: /* EventReaderDelegate.java -- 2: Copyright (C) 2005 Free Software Foundation, Inc. 3: 4: This file is part of GNU Classpath. 5: 6: GNU Classpath is free software; you can redistribute it and/or modify 7: it under the terms of the GNU General Public License as published by 8: the Free Software Foundation; either version 2, or (at your option) 9: any later version. 10: 11: GNU Classpath is distributed in the hope that it will be useful, but 12: WITHOUT ANY WARRANTY; without even the implied warranty of 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14: General Public License for more details. 15: 16: You should have received a copy of the GNU General Public License 17: along with GNU Classpath; see the file COPYING. If not, write to the 18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19: 02110-1301 USA. 20: 21: Linking this library statically or dynamically with other modules is 22: making a combined work based on this library. Thus, the terms and 23: conditions of the GNU General Public License cover the whole 24: combination. 25: 26: As a special exception, the copyright holders of this library give you 27: permission to link this library with independent modules to produce an 28: executable, regardless of the license terms of these independent 29: modules, and to copy and distribute the resulting executable under 30: terms of your choice, provided that you also meet, for each linked 31: independent module, the terms and conditions of the license of that 32: module. An independent module is a module which is not derived from 33: or based on this library. If you modify this library, you may extend 34: this exception to your version of the library, but you are not 35: obligated to do so. If you do not wish to do so, delete this 36: exception statement from your version. */ 37: 38: package javax.xml.stream.util; 39: 40: import java.util.NoSuchElementException; 41: import javax.xml.stream.XMLStreamException; 42: import javax.xml.stream.XMLEventReader; 43: import javax.xml.stream.events.XMLEvent; 44: 45: /** 46: * Base class for event reader filters. 47: */ 48: public class EventReaderDelegate 49: implements XMLEventReader 50: { 51: 52: private XMLEventReader parent; 53: 54: /** 55: * Constructs an empty filter with no parent set. 56: */ 57: public EventReaderDelegate() 58: { 59: } 60: 61: /** 62: * Constructs an empty filter with the given parent. 63: */ 64: public EventReaderDelegate(XMLEventReader reader) 65: { 66: parent = reader; 67: } 68: 69: /** 70: * Sets the parent. 71: */ 72: public void setParent(XMLEventReader reader) 73: { 74: parent = reader; 75: } 76: 77: /** 78: * Returns the parent. 79: */ 80: public XMLEventReader getParent() 81: { 82: return parent; 83: } 84: 85: public XMLEvent next() 86: throws XMLStreamException 87: { 88: if (parent != null) 89: return parent.next(); 90: throw new NoSuchElementException(); 91: } 92: 93: public boolean hasNext() 94: throws XMLStreamException 95: { 96: if (parent != null) 97: return parent.hasNext(); 98: return false; 99: } 100: 101: public XMLEvent peek() 102: throws XMLStreamException 103: { 104: if (parent != null) 105: return parent.peek(); 106: return null; 107: } 108: 109: public String getElementText() 110: throws XMLStreamException 111: { 112: if (parent != null) 113: return parent.getElementText(); 114: throw new XMLStreamException(); 115: } 116: 117: public XMLEvent nextTag() 118: throws XMLStreamException 119: { 120: if (parent != null) 121: return parent.nextTag(); 122: throw new XMLStreamException(); 123: } 124: 125: public Object getProperty(String name) 126: throws IllegalArgumentException 127: { 128: if (parent != null) 129: return parent.getProperty(name); 130: throw new IllegalArgumentException(name); 131: } 132: 133: }
GNU Classpath (0.20) |