org.apache.xpath.compiler

Class XPathParser


public class XPathParser
extends java.lang.Object

Tokenizes and parses XPath expressions. This should really be named XPathParserImpl, and may be renamed in the future.

Field Summary

static String
CONTINUE_AFTER_FATAL_ERROR

Constructor Summary

XPathParser(ErrorListener errorListener, javax.xml.transform.SourceLocator sourceLocator)
The parser constructor.

Method Summary

ErrorListener
getErrorListener()
Return the current error listener.
void
initMatchPattern(Compiler compiler, String expression, PrefixResolver namespaceContext)
Given an string, init an XPath object for pattern matches, in order that a parse doesn't have to be done each time the expression is evaluated.
void
initXPath(Compiler compiler, String expression, PrefixResolver namespaceContext)
Given an string, init an XPath object for selections, in order that a parse doesn't have to be done each time the expression is evaluated.
void
setErrorHandler(ErrorListener handler)
Allow an application to register an error event handler, where syntax errors will be sent.

Field Details

CONTINUE_AFTER_FATAL_ERROR

public static final String CONTINUE_AFTER_FATAL_ERROR

Constructor Details

XPathParser

public XPathParser(ErrorListener errorListener,
                   javax.xml.transform.SourceLocator sourceLocator)
The parser constructor.

Method Details

getErrorListener

public ErrorListener getErrorListener()
Return the current error listener.
Returns:
The error listener, which should not normally be null, but may be.

initMatchPattern

public void initMatchPattern(Compiler compiler,
                             String expression,
                             PrefixResolver namespaceContext)
            throws TransformerException
Given an string, init an XPath object for pattern matches, in order that a parse doesn't have to be done each time the expression is evaluated.
Parameters:
compiler - The XPath object to be initialized.
expression - A String representing the XPath.
namespaceContext - An object that is able to resolve prefixes in the XPath to namespaces.

initXPath

public void initXPath(Compiler compiler,
                      String expression,
                      PrefixResolver namespaceContext)
            throws TransformerException
Given an string, init an XPath object for selections, in order that a parse doesn't have to be done each time the expression is evaluated.
Parameters:
compiler - The compiler object.
expression - A string conforming to the XPath grammar.
namespaceContext - An object that is able to resolve prefixes in the XPath to namespaces.

setErrorHandler

public void setErrorHandler(ErrorListener handler)
Allow an application to register an error event handler, where syntax errors will be sent. If the error listener is not set, syntax errors will be sent to System.err.
Parameters:
handler - Reference to error listener where syntax errors will be sent.

Copyright © 2006 Apache XML Project. All Rights Reserved.