org.apache.xerces.dom.ProcessingInstructionImpl Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of xercesImpl

Xerces2 provides high performance, fully compliant XML parsers in the Apache Xerces family. This new version of Xerces continues to build upon the Xerces Native Interface (XNI), a complete framework for building parser components and configurations that is extremely modular and easy to program. The Apache Xerces2 parser is the reference implementation of XNI but other parser components, configurations, and parsers can be written using the Xerces Native Interface. For complete design and implementation documents, refer to the XNI Manual. Xerces2 provides fully conforming XML Schema 1.0 and 1.1 processors. An experimental implementation of the "XML Schema Definition Language (XSD): Component Designators (SCD) Candidate Recommendation (January 2010)" is also provided for evaluation. For more information, refer to the XML Schema page. Xerces2 also provides a complete implementation of the Document Object Model Level 3 Core and Load/Save W3C Recommendations and provides a complete implementation of the XML Inclusions (XInclude) W3C Recommendation. It also provides support for OASIS XML Catalogs v1.1. Xerces2 is able to parse documents written according to the XML 1.1 Recommendation, except that it does not yet provide an option to enable normalization checking as described in section 2.13 of this specification. It also handles namespaces according to the XML Namespaces 1.1 Recommendation, and will correctly serialize XML 1.1 documents if the DOM level 3 load/save APIs are in use.

There is a newer version: 2.12.2

Show newest version

/*
 * 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 [email protected].
 *
 * 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
 * .
 */

package org.apache.xerces.dom;

import org.w3c.dom.Node;
import org.w3c.dom.ProcessingInstruction;

/**
 * Processing Instructions (PIs) permit documents to carry
 * processor-specific information alongside their actual content. PIs
 * are most common in XML, but they are supported in HTML as well.
 *
 * This class inherits from CharacterDataImpl to reuse its setNodeValue method.
 *
 * @version $Id: ProcessingInstructionImpl.java,v 1.12 2003/01/17 22:40:54 elena Exp $
 * @since  PR-DOM-Level-1-19980818.
 */
public class ProcessingInstructionImpl
    extends CharacterDataImpl
    implements ProcessingInstruction {

    //
    // Constants
    //

    /** Serialization version. */
    static final long serialVersionUID = 7554435174099981510L;

    //
    // Data
    //

    protected String target;

    //
    // Constructors
    //

    /** Factory constructor. */
    public ProcessingInstructionImpl(CoreDocumentImpl ownerDoc,
                                     String target, String data) {
        super(ownerDoc, data);
        this.target = target;
    }

    //
    // 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 Node.PROCESSING_INSTRUCTION_NODE;
    }

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

    //
    // ProcessingInstruction methods
    //

    /**
     * A PI's "target" states what processor channel the PI's data
     * should be directed to. It is defined differently in HTML and XML.
     * 
     * In XML, a PI's "target" is the first (whitespace-delimited) token
     * following the "
     * In HTML, target is always null.
     * 

     * Note that getNodeName is aliased to getTarget.
     */
    public String getTarget() {
        if (needsSyncData()) {
            synchronizeData();
        }
        return target;

    } // getTarget():String

    /**
     * A PI's data content tells the processor what we actually want it
     * to do.  It is defined slightly differently in HTML and XML.
     * 

     * In XML, the data begins with the non-whitespace character
     * immediately after the target -- @see getTarget().
     * 

     * In HTML, the data begins with the character immediately after the
     * "<?" token that begins the PI.
     * 
     * Note that getNodeValue is aliased to getData
     */
    public String getData() {
        if (needsSyncData()) {
            synchronizeData();
        }
        return data;

    } // getData():String

    /**
     * Change the data content of this PI.
     * Note that setData is aliased to setNodeValue.
     * @see #getData().
     * @throws DOMException(NO_MODIFICATION_ALLOWED_ERR) if node is read-only.
     */
    public void setData(String data) {
        // Hand off to setNodeValue for code-reuse reasons (mutation
        // events, readonly protection, synchronizing, etc.)
        setNodeValue(data);
    } // setData(String)



   /**
     * DOM Level 3 WD - Experimental.
     * Retrieve baseURI
     */
    public String getBaseURI() {

        if (needsSyncData()) {
            synchronizeData();
        }
        return ownerNode.getBaseURI();
    }


} // class ProcessingInstructionImpl