elementdefinitionimpl.java

来自「JAVA的一些源码 JAVA2 STANDARD EDITION DEVELO」· Java 代码 · 共 158 行

/*
 * The Apache Software License, Version 1.1
 *
 *
 * Copyright (c) 1999-2002 The Apache Software Foundation.  All rights 
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:  
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Xerces" and "Apache Software Foundation" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written 
 *    permission, please contact [e-mail].
 *
 * 5. Products derived from this software may not be called "Apache",
 *    nor may "Apache" appear in their name, without prior written
 *    permission of the Apache Software Foundation.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation and was
 * originally based on software copyright (c) 1999, International
 * Business Machines, Inc., http://www.apache.org.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */

package com.sun.org.apache.xerces.internal.dom;

import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;

/**
 * NON-DOM CLASS: Describe one of the Elements (and its associated
 * Attributes) defined in this Document Type.
 * <p>
 * I've included this in Level 1 purely as an anchor point for default
 * attributes. In Level 2 it should enable the ChildRule support.
 *
 * @version $Id: ElementDefinitionImpl.java,v 1.12 2002/01/29 01:15:07 lehors Exp $
 */
public class ElementDefinitionImpl 
    extends ParentNode {

    //
    // Constants
    //

    /** Serialization version. */
    static final long serialVersionUID = -8373890672670022714L;
    
    //
    // Data
    //

    /** Element definition name. */
    protected String name;

    /** Default attributes. */
    protected NamedNodeMapImpl attributes;

    //
    // Constructors
    //

    /** Factory constructor. */
    public ElementDefinitionImpl(CoreDocumentImpl ownerDocument, String name) {
    	super(ownerDocument);
        this.name = name;
        attributes = new NamedNodeMapImpl(ownerDocument);
    }

    //
    // Node methods
    //

    /** 
     * A short integer indicating what type of node this is. The named
     * constants for this value are defined in the org.w3c.dom.Node interface.
     */
    public short getNodeType() {
        return NodeImpl.ELEMENT_DEFINITION_NODE;
    }

    /**
     * Returns the element definition name
     */
    public String getNodeName() {
        if (needsSyncData()) {
            synchronizeData();
        }
        return name;
    }

    /**
     * Replicate this object.
     */
    public Node cloneNode(boolean deep) {

    	ElementDefinitionImpl newnode =
            (ElementDefinitionImpl) super.cloneNode(deep);
    	// NamedNodeMap must be explicitly replicated to avoid sharing
    	newnode.attributes = attributes.cloneMap(newnode);
    	return newnode;

    } // cloneNode(boolean):Node

    /**
     * Query the attributes defined on this Element.
     * <p>
     * In the base implementation this Map simply contains Attribute objects
     * representing the defaults. In a more serious implementation, it would
     * contain AttributeDefinitionImpl objects for all declared Attributes,
     * indicating which are Default, DefaultFixed, Implicit and/or Required.
     * 
     * @return org.w3c.dom.NamedNodeMap containing org.w3c.dom.Attribute
     */
    public NamedNodeMap getAttributes() {

        if (needsSyncChildren()) {
            synchronizeChildren();
        }
    	return attributes;

    } // getAttributes():NamedNodeMap

} // class ElementDefinitionImpl