processinginstructionimpl.java

用Java写的面相对象的数据库管理系统

/**
 * org/ozone-db/xml/dom/ProcessingInstructionImpl.java
 *
 * The contents of this file are subject to the OpenXML Public
 * License Version 1.0; you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 * http://www.openxml.org/license.html
 *
 * THIS SOFTWARE IS DISTRIBUTED ON AN "AS IS" BASIS WITHOUT WARRANTY
 * OF ANY KIND, EITHER EXPRESSED OR IMPLIED. THE INITIAL DEVELOPER
 * AND ALL CONTRIBUTORS SHALL NOT BE LIABLE FOR ANY DAMAGES AS A
 * RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
 * DERIVATIVES. SEE THE LICENSE FOR THE SPECIFIC LANGUAGE GOVERNING
 * RIGHTS AND LIMITATIONS UNDER THE LICENSE.
 *
 * The Initial Developer of this code under the License is Assaf Arkin.
 * Portions created by Assaf Arkin are Copyright (C) 1998, 1999.
 * All Rights Reserved.
 */

/**
 * Changes for Persistent DOM running with ozone are
 * Copyright 1999 by SMB GmbH. All rights reserved.
 */

package org.ozoneDB.xml.dom;

import org.w3c.dom.*;


/**
 * Implements a processing instruction. The target and data of the processing
 * instruction are mapped into the name and value of the node.
 * <P>
 * Notes:
 * <OL>
 * <LI>Node type is {@link org.w3c.dom.Node#PROCESSING_INSTRUCTION_NODE}
 * <LI>Node does not support childern
 * </OL>
 *
 *
 * @version $Revision: 1.9 $ $Date: 2000/10/28 16:55:23 $
 * @author <a href="mailto:[e-mail]">Assaf Arkin</a>
 * @see org.w3c.dom.ProcessingInstruction
 * @see NodeImpl
 */
public final class ProcessingInstructionImpl extends NodeImpl implements ProcessingInstructionProxy {
    
    final static long serialVersionUID = 1;
    
    
    public short getNodeType() {
        return this.PROCESSING_INSTRUCTION_NODE;
    } 
    
    
    public String getTarget() {
        // Same as calling getNodeName().
        return getNodeName();
    } 
    
    
    public String getData() {
        // Same as calling getNodeValue().
        return getNodeValue();
    } 
    
    
    public void setData( String data ) throws DOMException {
        // Same as calling setNodeValue().
        setNodeValue( data );
    } 
    
    
    public final Object clone() {
        ProcessingInstructionProxy clone = null;
        try {
            clone = (ProcessingInstructionProxy)database().createObject( ProcessingInstructionImpl.class.getName() );
            clone.init( _ownerDocument, getNodeName(), getNodeValue() );
            cloneInto( (NodeProxy)clone, true );
        } catch (Exception except) {
            throw new DOMExceptionImpl( DOMExceptionImpl.PDOM_ERR, except.getMessage() );
        } 
        return clone;
    } 
    
    
    public final Node cloneNode( boolean deep ) {
        ProcessingInstructionProxy clone = null;
        try {
            clone = (ProcessingInstructionProxy)database().createObject( ProcessingInstructionImpl.class.getName() );
            clone.init( _ownerDocument, getNodeName(), getNodeValue() );
            cloneInto( (NodeProxy)clone, deep );
        } catch (Exception except) {
            throw new DOMExceptionImpl( DOMExceptionImpl.PDOM_ERR, except.getMessage() );
        } 
        return clone;
    } 
    
    
    public String toString() {
        String target;
        String data;
        
        target = getTarget();
        if (target.length() > 32) {
            target = target.substring( 0, 32 ) + "..";
        } 
        data = getData();
        if (data.length() > 32) {
            data = data.substring( 0, 32 ) + "..";
        } 
        return "PI node: [" + target + "] [" + data + "]";
    } 
    
    
    protected final boolean supportsChildern() {
        return false;
    } 
    
    
    /**
     * Hidden constructor.
     *
     * @param owner The owner of this document
     * @param target The processing instruction target
     * @param target The processing instruction data
     */
    public ProcessingInstructionImpl( DocumentImpl owner, String target, String data ) {
        super( owner, target, data, true );
    }
    
    
    public ProcessingInstructionImpl() {
        super();
    }
    
    
    public void init( DocumentProxy owner, String target, String data ) {
        super.init( owner, target, data, true );
    } 
}