jkesselm 00/10/24 06:46:06
Added: java/src/org/apache/xalan/utils SerializableLocatorImpl.java Log: Support for serializing stylesheets Revision Changes Path 1.1 xml-xalan/java/src/org/apache/xalan/utils/SerializableLocatorImpl.java Index: SerializableLocatorImpl.java =================================================================== /* * The Apache Software License, Version 1.1 * * * Copyright (c) 1999 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 "Xalan" 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, Lotus * Development Corporation., http://www.lotus.com. For more * information on the Apache Software Foundation, please see * <http://www.apache.org/>. */ package org.apache.xalan.utils; /** * The standard SAX implementation of LocatorImpl is not serializable, * limiting its utility as "a persistent snapshot of a locator". * This is a quick hack to make it so. Note that it makes more sense * in many cases to set up fields to hold this data rather than pointing * at another object... but that decision should be made on architectural * grounds rather than serializability. *<p> * It isn't clear whether subclassing LocatorImpl and adding serialization * methods makes more sense than copying it and just adding Serializable * to its interface. Since it's so simple, I've taken the latter approach * for now. * * @see org.xml.sax.helpers.LocatorImpl * @see org.xml.sax.Locator Locator * @since XalanJ2 * @author Joe Kesselman * @version 1.0 */ public class SerializableLocatorImpl implements org.xml.sax.Locator, java.io.Serializable { /** * Zero-argument constructor. * * <p>SAX says "This will not normally be useful, since the main purpose * of this class is to make a snapshot of an existing Locator." In fact, * it _is_ sometimes useful when you want to construct a new Locator * pointing to a specific location... which, after all, is why the * setter methods are provided. * </p> */ public SerializableLocatorImpl () { } /** * Copy constructor. * * <p>Create a persistent copy of the current state of a locator. * When the original locator changes, this copy will still keep * the original values (and it can be used outside the scope of * DocumentHandler methods).</p> * * @param locator The locator to copy. */ public SerializableLocatorImpl (org.xml.sax.Locator locator) { setPublicId(locator.getPublicId()); setSystemId(locator.getSystemId()); setLineNumber(locator.getLineNumber()); setColumnNumber(locator.getColumnNumber()); } //////////////////////////////////////////////////////////////////// // Implementation of org.xml.sax.Locator //////////////////////////////////////////////////////////////////// /** * Return the saved public identifier. * * @return The public identifier as a string, or null if none * is available. * @see org.xml.sax.Locator#getPublicId * @see #setPublicId */ public String getPublicId () { return publicId; } /** * Return the saved system identifier. * * @return The system identifier as a string, or null if none * is available. * @see org.xml.sax.Locator#getSystemId * @see #setSystemId */ public String getSystemId () { return systemId; } /** * Return the saved line number (1-based). * * @return The line number as an integer, or -1 if none is available. * @see org.xml.sax.Locator#getLineNumber * @see #setLineNumber */ public int getLineNumber () { return lineNumber; } /** * Return the saved column number (1-based). * * @return The column number as an integer, or -1 if none is available. * @see org.xml.sax.Locator#getColumnNumber * @see #setColumnNumber */ public int getColumnNumber () { return columnNumber; } //////////////////////////////////////////////////////////////////// // Setters for the properties (not in org.xml.sax.Locator) //////////////////////////////////////////////////////////////////// /** * Set the public identifier for this locator. * * @param publicId The new public identifier, or null * if none is available. * @see #getPublicId */ public void setPublicId (String publicId) { this.publicId = publicId; } /** * Set the system identifier for this locator. * * @param systemId The new system identifier, or null * if none is available. * @see #getSystemId */ public void setSystemId (String systemId) { this.systemId = systemId; } /** * Set the line number for this locator (1-based). * * @param lineNumber The line number, or -1 if none is available. * @see #getLineNumber */ public void setLineNumber (int lineNumber) { this.lineNumber = lineNumber; } /** * Set the column number for this locator (1-based). * * @param columnNumber The column number, or -1 if none is available. * @see #getColumnNumber */ public void setColumnNumber (int columnNumber) { this.columnNumber = columnNumber; } //////////////////////////////////////////////////////////////////// // Internal state. //////////////////////////////////////////////////////////////////// private String publicId; private String systemId; private int lineNumber; private int columnNumber; } // end of LocatorImpl.java
