proxydocumentfactory.java

Java的面向对象数据库系统的源代码

/*
 * Copyright 2001 (C) MetaStuff, Ltd. All Rights Reserved.
 *
 * This software is open source.
 * See the bottom of this file for the licence.
 *
 * $Id: ProxyDocumentFactory.java,v 1.3 2003/11/02 18:04:59 per_nyfelt Exp $
 */

package org.dom4j.util;

import org.dom4j.*;
import org.dom4j.rule.Pattern;
import org.jaxen.VariableContext;

import java.util.Map;

/** <p><code>ProxyDocumentFactory</code> implements a proxy to a DocumentFactory
  * which is useful for implementation inheritence, allowing the pipelining
  * of various factory implementations. For example an EncodingDocumentFactory
  * which takes care of encoding strings outside of allowable XML ranges
  * could be used with a DatatypeDocumentFactory which is XML Schema Data Type
  * aware.</p>
  *
  * @author <a href="mailto:[e-mail]">James Strachan</a>
  * @version $Revision: 1.3 $
  */
public abstract class ProxyDocumentFactory {

    private DocumentFactory proxy;

    public ProxyDocumentFactory() {
        // use default factory
        this.proxy = DocumentFactory.getInstance();
    }

    public ProxyDocumentFactory(DocumentFactory proxy) {
        this.proxy = proxy;
    }

    // Factory methods
    //-------------------------------------------------------------------------

    public Document createDocument() {
        return proxy.createDocument();
    }

    public Document createDocument(Element rootElement) {
        return proxy.createDocument(rootElement);
    }

    public DocumentType createDocType(String name, String publicId, String systemId) {
        return proxy.createDocType(name, publicId, systemId);
    }

    public Element createElement(QName qname) {
        return proxy.createElement(qname);
    }

    public Element createElement(String name) {
        return proxy.createElement(name);
    }


    public Attribute createAttribute(Element owner, QName qname, String value) {
        return proxy.createAttribute(owner, qname, value);
    }

    public Attribute createAttribute(Element owner, String name, String value) {
        return proxy.createAttribute(owner, name, value);
    }

    public CDATA createCDATA(String text) {
        return proxy.createCDATA(text);
    }

    public Comment createComment(String text) {
        return proxy.createComment(text);
    }

    public Text createText(String text) {
        return proxy.createText(text);
    }


    public Entity createEntity(String name, String text) {
        return proxy.createEntity(name, text);
    }

    public Namespace createNamespace(String prefix, String uri) {
        return proxy.createNamespace(prefix, uri);
    }

    public ProcessingInstruction createProcessingInstruction(String target, String data) {
        return proxy.createProcessingInstruction(target, data);
    }

    public ProcessingInstruction createProcessingInstruction(String target, Map data) {
        return proxy.createProcessingInstruction(target, data);
    }

    public QName createQName(String localName, Namespace namespace) {
        return proxy.createQName(localName, namespace);
    }

    public QName createQName(String localName) {
        return proxy.createQName(localName);
    }

    public QName createQName(String name, String prefix, String uri) {
        return proxy.createQName(name, prefix, uri);
    }

    public QName createQName(String qualifiedName, String uri) {
        return proxy.createQName(qualifiedName, uri);
    }

    public XPath createXPath(String xpathExpression) {
        return proxy.createXPath(xpathExpression);
    }

    public XPath createXPath(String xpathExpression, VariableContext variableContext) {
        return proxy.createXPath(xpathExpression, variableContext);
    }

    public NodeFilter createXPathFilter(String xpathFilterExpression, VariableContext variableContext) {
        return proxy.createXPathFilter(xpathFilterExpression, variableContext);
    }

    public NodeFilter createXPathFilter(String xpathFilterExpression) {
        return proxy.createXPathFilter(xpathFilterExpression);
    }

    public Pattern createPattern(String xpathPattern) {
        return proxy.createPattern(xpathPattern);
    }


    // Implementation methods
    //-------------------------------------------------------------------------
    protected DocumentFactory getProxy() {
        return proxy;
    }

    protected void setProxy(DocumentFactory proxy) {
        if ( proxy == null ) {
            // use default factory
            proxy = DocumentFactory.getInstance();
        }
        this.proxy = proxy;
    }
}




/*
 * Redistribution and use of this software and associated documentation
 * ("Software"), with or without modification, are permitted provided
 * that the following conditions are met:
 *
 * 1. Redistributions of source code must retain copyright
 *    statements and notices.  Redistributions must also contain a
 *    copy of this document.
 *
 * 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 name "DOM4J" must not be used to endorse or promote
 *    products derived from this Software without prior written
 *    permission of MetaStuff, Ltd.  For written permission,
 *    please contact [e-mail].
 *
 * 4. Products derived from this Software may not be called "DOM4J"
 *    nor may "DOM4J" appear in their names without prior written
 *    permission of MetaStuff, Ltd. DOM4J is a registered
 *    trademark of MetaStuff, Ltd.
 *
 * 5. Due credit should be given to the DOM4J Project
 *    (http://dom4j.org/).
 *
 * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS
 * ``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
 * METASTUFF, LTD. 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.
 *
 * Copyright 2001 (C) MetaStuff, Ltd. All Rights Reserved.
 *
 * $Id: ProxyDocumentFactory.java,v 1.3 2003/11/02 18:04:59 per_nyfelt Exp $
 */