org.apache.xpath.compiler
Class XPathParser

java.lang.Object
  |
  +--org.apache.xpath.compiler.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.

Usage:

Field Summary
static java.lang.String CONTINUE_AFTER_FATAL_ERROR
           
 
Constructor Summary
XPathParser(ErrorListener errorListener, SourceLocator sourceLocator)
          The parser constructor.
 
Method Summary
 ErrorListener getErrorListener()
          Return the current error listener.
 void initMatchPattern(Compiler compiler, java.lang.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, java.lang.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.
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

CONTINUE_AFTER_FATAL_ERROR

public static final java.lang.String CONTINUE_AFTER_FATAL_ERROR
Constructor Detail

XPathParser

public XPathParser(ErrorListener errorListener,
                   SourceLocator sourceLocator)
The parser constructor.
Method Detail

initXPath

public void initXPath(Compiler compiler,
                      java.lang.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.
Throws:
TransformerException -  

initMatchPattern

public void initMatchPattern(Compiler compiler,
                             java.lang.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.
Throws:
TransformerException -  

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.

getErrorListener

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


Copyright 2006 Apache XML Project. All Rights Reserved.