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265 lines
8.5 KiB
Java
265 lines
8.5 KiB
Java
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// SAX exception class.
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// No warranty; no copyright -- use this as you will.
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// $Id: SAXParseException.java,v 1.1 2000/10/02 02:43:17 sboag Exp $
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package org.xml.sax;
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/**
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* Encapsulate an XML parse error or warning.
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*
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* <blockquote>
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* <em>This module, both source code and documentation, is in the
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* Public Domain, and comes with <strong>NO WARRANTY</strong>.</em>
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* </blockquote>
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*
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* <p>This exception will include information for locating the error
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* in the original XML document. Note that although the application
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* will receive a SAXParseException as the argument to the handlers
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* in the {@link org.xml.sax.ErrorHandler ErrorHandler} interface,
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* the application is not actually required to throw the exception;
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* instead, it can simply read the information in it and take a
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* different action.</p>
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*
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* <p>Since this exception is a subclass of {@link org.xml.sax.SAXException
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* SAXException}, it inherits the ability to wrap another exception.</p>
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*
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* @since SAX 1.0
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* @author David Megginson,
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* <a href="mailto:sax@megginson.com">sax@megginson.com</a>
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* @version 2.0
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* @see org.xml.sax.SAXException
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* @see org.xml.sax.Locator
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* @see org.xml.sax.ErrorHandler
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*/
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public class SAXParseException extends SAXException {
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//////////////////////////////////////////////////////////////////////
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// Constructors.
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//////////////////////////////////////////////////////////////////////
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/**
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* Create a new SAXParseException from a message and a Locator.
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*
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* <p>This constructor is especially useful when an application is
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* creating its own exception from within a {@link org.xml.sax.ContentHandler
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* ContentHandler} callback.</p>
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*
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* @param message The error or warning message.
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* @param locator The locator object for the error or warning (may be
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* null).
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* @see org.xml.sax.Locator
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* @see org.xml.sax.Parser#setLocale
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*/
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public SAXParseException (String message, Locator locator) {
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super(message);
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if (locator != null) {
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init(locator.getPublicId(), locator.getSystemId(),
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locator.getLineNumber(), locator.getColumnNumber());
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} else {
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init(null, null, -1, -1);
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}
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}
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/**
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* Wrap an existing exception in a SAXParseException.
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*
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* <p>This constructor is especially useful when an application is
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* creating its own exception from within a {@link org.xml.sax.ContentHandler
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* ContentHandler} callback, and needs to wrap an existing exception that is not a
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* subclass of {@link org.xml.sax.SAXException SAXException}.</p>
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*
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* @param message The error or warning message, or null to
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* use the message from the embedded exception.
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* @param locator The locator object for the error or warning (may be
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* null).
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* @param e Any exception.
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* @see org.xml.sax.Locator
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* @see org.xml.sax.Parser#setLocale
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*/
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public SAXParseException (String message, Locator locator,
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Exception e) {
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super(message, e);
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if (locator != null) {
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init(locator.getPublicId(), locator.getSystemId(),
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locator.getLineNumber(), locator.getColumnNumber());
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} else {
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init(null, null, -1, -1);
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}
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}
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/**
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* Create a new SAXParseException.
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*
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* <p>This constructor is most useful for parser writers.</p>
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*
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* <p>If the system identifier is a URL, the parser must resolve it
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* fully before creating the exception.</p>
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*
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* @param message The error or warning message.
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* @param publicId The public identifer of the entity that generated
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* the error or warning.
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* @param systemId The system identifer of the entity that generated
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* the error or warning.
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* @param lineNumber The line number of the end of the text that
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* caused the error or warning.
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* @param columnNumber The column number of the end of the text that
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* cause the error or warning.
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* @see org.xml.sax.Parser#setLocale
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*/
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public SAXParseException (String message, String publicId, String systemId,
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int lineNumber, int columnNumber)
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{
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super(message);
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init(publicId, systemId, lineNumber, columnNumber);
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}
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/**
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* Create a new SAXParseException with an embedded exception.
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*
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* <p>This constructor is most useful for parser writers who
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* need to wrap an exception that is not a subclass of
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* {@link org.xml.sax.SAXException SAXException}.</p>
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*
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* <p>If the system identifier is a URL, the parser must resolve it
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* fully before creating the exception.</p>
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*
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* @param message The error or warning message, or null to use
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* the message from the embedded exception.
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* @param publicId The public identifer of the entity that generated
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* the error or warning.
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* @param systemId The system identifer of the entity that generated
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* the error or warning.
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* @param lineNumber The line number of the end of the text that
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* caused the error or warning.
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* @param columnNumber The column number of the end of the text that
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* cause the error or warning.
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* @param e Another exception to embed in this one.
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* @see org.xml.sax.Parser#setLocale
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*/
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public SAXParseException (String message, String publicId, String systemId,
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int lineNumber, int columnNumber, Exception e)
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{
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super(message, e);
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init(publicId, systemId, lineNumber, columnNumber);
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}
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/**
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* Internal initialization method.
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*
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* @param publicId The public identifier of the entity which generated the exception,
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* or null.
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* @param systemId The system identifier of the entity which generated the exception,
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* or null.
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* @param lineNumber The line number of the error, or -1.
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* @param columnNumber The column number of the error, or -1.
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*/
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private void init (String publicId, String systemId,
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int lineNumber, int columnNumber)
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{
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this.publicId = publicId;
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this.systemId = systemId;
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this.lineNumber = lineNumber;
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this.columnNumber = columnNumber;
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}
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/**
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* Get the public identifier of the entity where the exception occurred.
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*
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* @return A string containing the public identifier, or null
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* if none is available.
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* @see org.xml.sax.Locator#getPublicId
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*/
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public String getPublicId ()
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{
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return this.publicId;
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}
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/**
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* Get the system identifier of the entity where the exception occurred.
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*
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* <p>If the system identifier is a URL, it will be resolved
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* fully.</p>
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*
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* @return A string containing the system identifier, or null
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* if none is available.
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* @see org.xml.sax.Locator#getSystemId
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*/
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public String getSystemId ()
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{
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return this.systemId;
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}
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/**
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* The line number of the end of the text where the exception occurred.
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*
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* @return An integer representing the line number, or -1
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* if none is available.
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* @see org.xml.sax.Locator#getLineNumber
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*/
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public int getLineNumber ()
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{
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return this.lineNumber;
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}
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/**
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* The column number of the end of the text where the exception occurred.
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*
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* <p>The first column in a line is position 1.</p>
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*
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* @return An integer representing the column number, or -1
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* if none is available.
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* @see org.xml.sax.Locator#getColumnNumber
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*/
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public int getColumnNumber ()
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{
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return this.columnNumber;
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}
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//////////////////////////////////////////////////////////////////////
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// Internal state.
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//////////////////////////////////////////////////////////////////////
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/**
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* @serial The public identifier, or null.
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* @see #getPublicId
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*/
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private String publicId;
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/**
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* @serial The system identifier, or null.
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* @see #getSystemId
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*/
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private String systemId;
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/**
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* @serial The line number, or -1.
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* @see #getLineNumber
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*/
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private int lineNumber;
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/**
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* @serial The column number, or -1.
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* @see #getColumnNumber
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*/
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private int columnNumber;
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}
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// end of SAXParseException.java
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