00001 00002 // 00003 // XML storage classes version 1.5 00004 // 00005 // XMLStringRef.java 00006 // 00007 // Copyright (c) 2004, 2005, 2010 Martin Fuchs <martin-fuchs@gmx.net> 00008 // 00009 00010 00011 /* 00012 00013 All rights reserved. 00014 00015 Redistribution and use in source and binary forms, with or without 00016 modification, are permitted provided that the following conditions are met: 00017 00018 * Redistributions of source code must retain the above copyright 00019 notice, this list of conditions and the following disclaimer. 00020 * Redistributions in binary form must reproduce the above copyright 00021 notice, this list of conditions and the following disclaimer in 00022 the documentation and/or other materials provided with the 00023 distribution. 00024 00025 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00026 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00027 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00028 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 00029 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00030 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00031 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00032 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00033 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00034 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00035 POSSIBILITY OF SUCH DAMAGE. 00036 00037 */ 00038 00039 package de.mfuchs.xmlstorage; 00040 00041 00042 /** 00043 * XMLStringRef is used to provide write access to XML attribute values. 00044 */ 00045 public class XMLStringRef 00046 { 00047 public XMLStringRef(final XMLNode node, final String attrName) 00048 { 00049 this(node, attrName, ""); 00050 } 00051 00052 public XMLStringRef(final XMLPos pos, final String attrName) 00053 { 00054 this(pos.cur(), attrName, ""); 00055 } 00056 00057 public XMLStringRef(final XMLNode node, final String attrName, final String def/*=""*/) 00058 { 00059 _node = node; 00060 _attrName = attrName; 00061 00062 if (node != null) 00063 if (node.get(attrName).length() == 0) 00064 assign(def); 00065 } 00066 00067 public XMLStringRef(final XMLPos pos, final String attrName, final String def/*=""*/) 00068 { 00069 this(pos.cur(), attrName, def); 00070 } 00071 00072 public String toString() 00073 { 00074 if (_node != null) 00075 return _node.get(_attrName); 00076 else 00077 return ""; 00078 } 00079 00080 public void assign(final String value) 00081 { 00082 if (_node != null) 00083 _node.put(_attrName, value); 00084 } 00085 00086 protected final XMLNode _node; 00087 protected final String _attrName; 00088 }