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    1   /*
    2    * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
    3    *
    4    * This software is open source.
    5    * See the bottom of this file for the licence.
    6    */
    7
    8   package org.dom4j.dom;
    9
    10  import org.dom4j.Element;
    11  import org.dom4j.QName;
    12  import org.dom4j.tree.DefaultAttribute;
    13
    14  import org.w3c.dom.DOMException;
    15  import org.w3c.dom.Document;
    16  import org.w3c.dom.NamedNodeMap;
    17  import org.w3c.dom.NodeList;
    18
    19  /***
    20   * <p>
    21   * <code>DOMAttribute</code> implements a doubly linked attribute which
    22   * supports the W3C DOM API.
    23   * </p>
    24   *
    25   * @author <a href="mailto:jstrachan@apache.org">James Strachan </a>
    26   * @version $Revision: 1.14 $
    27   */
    28  public class DOMAttribute extends DefaultAttribute implements org.w3c.dom.Attr {
    29      public DOMAttribute(QName qname) {
    30          super(qname);
    31      }
    32
    33      public DOMAttribute(QName qname, String value) {
    34          super(qname, value);
    35      }
    36
    37      public DOMAttribute(Element parent, QName qname, String value) {
    38          super(parent, qname, value);
    39      }
    40
    41      // org.w3c.dom.Node interface
    42      // -------------------------------------------------------------------------
    43      public boolean supports(String feature, String version) {
    44          return DOMNodeHelper.supports(this, feature, version);
    45      }
    46
    47      public String getNamespaceURI() {
    48          return getQName().getNamespaceURI();
    49      }
    50
    51      public String getPrefix() {
    52          return getQName().getNamespacePrefix();
    53      }
    54
    55      public void setPrefix(String prefix) throws DOMException {
    56          DOMNodeHelper.setPrefix(this, prefix);
    57      }
    58
    59      public String getLocalName() {
    60          return getQName().getName();
    61      }
    62
    63      public String getNodeName() {
    64          return getName();
    65      }
    66
    67      // already part of API
    68      //
    69      // public short getNodeType();
    70      public String getNodeValue() throws DOMException {
    71          return DOMNodeHelper.getNodeValue(this);
    72      }
    73
    74      public void setNodeValue(String nodeValue) throws DOMException {
    75          DOMNodeHelper.setNodeValue(this, nodeValue);
    76      }
    77
    78      public org.w3c.dom.Node getParentNode() {
    79          // Per http://www.w3.org/TR/DOM-Level-2-Core/core.html#ID-637646024
    80          // and the NIST conformance tests, Attr.getParentNode() should always
    81          // return null
    82          return null;
    83      }
    84
    85      public NodeList getChildNodes() {
    86          return DOMNodeHelper.getChildNodes(this);
    87      }
    88
    89      public org.w3c.dom.Node getFirstChild() {
    90          return DOMNodeHelper.getFirstChild(this);
    91      }
    92
    93      public org.w3c.dom.Node getLastChild() {
    94          return DOMNodeHelper.getLastChild(this);
    95      }
    96
    97      public org.w3c.dom.Node getPreviousSibling() {
    98          return DOMNodeHelper.getPreviousSibling(this);
    99      }
    100
    101     public org.w3c.dom.Node getNextSibling() {
    102         return DOMNodeHelper.getNextSibling(this);
    103     }
    104
    105     public NamedNodeMap getAttributes() {
    106         return null;
    107     }
    108
    109     public Document getOwnerDocument() {
    110         return DOMNodeHelper.getOwnerDocument(this);
    111     }
    112
    113     public org.w3c.dom.Node insertBefore(org.w3c.dom.Node newChild,
    114             org.w3c.dom.Node refChild) throws DOMException {
    115         checkNewChildNode(newChild);
    116
    117         return DOMNodeHelper.insertBefore(this, newChild, refChild);
    118     }
    119
    120     public org.w3c.dom.Node replaceChild(org.w3c.dom.Node newChild,
    121             org.w3c.dom.Node oldChild) throws DOMException {
    122         checkNewChildNode(newChild);
    123
    124         return DOMNodeHelper.replaceChild(this, newChild, oldChild);
    125     }
    126
    127     public org.w3c.dom.Node removeChild(org.w3c.dom.Node oldChild)
    128             throws DOMException {
    129         return DOMNodeHelper.removeChild(this, oldChild);
    130     }
    131
    132     public org.w3c.dom.Node appendChild(org.w3c.dom.Node newChild)
    133             throws DOMException {
    134         checkNewChildNode(newChild);
    135
    136         return DOMNodeHelper.appendChild(this, newChild);
    137     }
    138
    139     private void checkNewChildNode(org.w3c.dom.Node newChild)
    140             throws DOMException {
    141         final int nodeType = newChild.getNodeType();
    142
    143         if (!((nodeType == org.w3c.dom.Node.TEXT_NODE)
    144                 || (nodeType == org.w3c.dom.Node.ENTITY_REFERENCE_NODE))) {
    145             throw new DOMException(DOMException.HIERARCHY_REQUEST_ERR,
    146                     "The node cannot be a child of attribute");
    147         }
    148     }
    149
    150     public boolean hasChildNodes() {
    151         return DOMNodeHelper.hasChildNodes(this);
    152     }
    153
    154     public org.w3c.dom.Node cloneNode(boolean deep) {
    155         return DOMNodeHelper.cloneNode(this, deep);
    156     }
    157
    158     public void normalize() {
    159         DOMNodeHelper.normalize(this);
    160     }
    161
    162     public boolean isSupported(String feature, String version) {
    163         return DOMNodeHelper.isSupported(this, feature, version);
    164     }
    165
    166     public boolean hasAttributes() {
    167         return DOMNodeHelper.hasAttributes(this);
    168     }
    169
    170     // org.w3c.dom.Attr interface
    171     // -------------------------------------------------------------------------
    172     // public String getName();
    173     public boolean getSpecified() {
    174         return true;
    175     }
    176
    177     // public String getValue();
    178     // public void setValue(String value) throws DOMException;
    179     public org.w3c.dom.Element getOwnerElement() {
    180         return DOMNodeHelper.asDOMElement(getParent());
    181     }
    182 }
    183
    184 /*
    185  * Redistribution and use of this software and associated documentation
    186  * ("Software"), with or without modification, are permitted provided that the
    187  * following conditions are met:
    188  *
    189  * 1. Redistributions of source code must retain copyright statements and
    190  * notices. Redistributions must also contain a copy of this document.
    191  *
    192  * 2. Redistributions in binary form must reproduce the above copyright notice,
    193  * this list of conditions and the following disclaimer in the documentation
    194  * and/or other materials provided with the distribution.
    195  *
    196  * 3. The name "DOM4J" must not be used to endorse or promote products derived
    197  * from this Software without prior written permission of MetaStuff, Ltd. For
    198  * written permission, please contact dom4j-info@metastuff.com.
    199  *
    200  * 4. Products derived from this Software may not be called "DOM4J" nor may
    201  * "DOM4J" appear in their names without prior written permission of MetaStuff,
    202  * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
    203  *
    204  * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
    205  *
    206  * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
    207  * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    208  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    209  * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
    210  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
    211  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
    212  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    213  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
    214  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    215  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    216  * POSSIBILITY OF SUCH DAMAGE.
    217  *
    218  * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
    219  */