org.jaxen.saxpath.base
Class XPathReader

java.lang.Object
  org.jaxen.saxpath.base.XPathReader

All Implemented Interfaces:

TokenTypes, SAXPathEventSource, XPathReader

public class XPathReader
extends java.lang.Object
implements XPathReader, TokenTypes

Implementation of SAXPath's XPathReader which generates callbacks to an XPathHandler.

Author:

bob mcwhirter (bob@werken.com)

Field Summary

private XPathHandler	handler
private XPathLexer	lexer
private java.util.LinkedList	tokens

Fields inherited from interface org.jaxen.saxpath.base.TokenTypes

AND, AT, COLON, COMMA, DIV, DOLLAR, DOT, DOT_DOT, DOUBLE, DOUBLE_COLON, DOUBLE_SLASH, EOF, EQUALS, GREATER_THAN, GREATER_THAN_EQUALS, IDENTIFIER, INTEGER, LEFT_BRACKET, LEFT_PAREN, LESS_THAN, LESS_THAN_EQUALS, LITERAL, MINUS, MOD, NOT, NOT_EQUALS, OR, PIPE, PLUS, RIGHT_BRACKET, RIGHT_PAREN, SKIP, SLASH, STAR

Constructor Summary

XPathReader()

Method Summary

(package private) void	abbrStep()
(package private) void	absoluteLocationPath()
(package private) void	additiveExpr()
(package private) void	andExpr()
(package private) void	arguments()
(package private) int	axisSpecifier()
(package private) void	equalityExpr()
(package private) void	expr()
(package private) void	filterExpr()
(package private) void	functionCall()
XPathHandler	getXPathHandler() Retrieve the current XPathHandler which receives the event callbacks.
(package private) boolean	isNodeTypeName(Token name)
(package private) int	LA(int position)
(package private) void	literal()
(package private) void	locationPath(boolean isAbsolute)
(package private) Token	LT(int position)
(package private) Token	match(int tokenType)
(package private) void	multiplicativeExpr()
(package private) void	nameTest(int axis)
(package private) void	nodeTest(int axis)
(package private) void	nodeTypeTest(int axis)
(package private) void	numberDouble()
(package private) void	numberInteger()
(package private) void	orExpr()
void	parse(java.lang.String xpath) Perform parsing of the textual XPath expression, and produce event callbacks to an XPathHandler.
(package private) void	pathExpr()
(package private) void	predicate()
(package private) void	predicateExpr()
(package private) void	predicates()
(package private) void	relationalExpr()
(package private) void	relativeLocationPath()
(package private) void	setUpParse(java.lang.String xpath)
void	setXPathHandler(XPathHandler handler) Set the XPathHandler to receive event callbacks during the parse.
(package private) void	step(boolean first)
(package private) void	steps()
(package private) void	throwInvalidAxis(java.lang.String invalidAxis)
(package private) void	throwSyntaxException(java.lang.String message)
(package private) void	throwUnexpected()
(package private) void	unaryExpr()
(package private) void	unionExpr()
(package private) void	variableReference()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

tokens

private java.util.LinkedList tokens

lexer

private XPathLexer lexer

handler

private XPathHandler handler

Constructor Detail

XPathReader

public XPathReader()

Method Detail

setXPathHandler

public void setXPathHandler(XPathHandler handler)

Description copied from interface: SAXPathEventSource

Set the XPathHandler to receive event callbacks during the parse.

Specified by:

setXPathHandler in interface SAXPathEventSource

Parameters:

handler - The handler to receive callbacks.

getXPathHandler

public XPathHandler getXPathHandler()

Description copied from interface: SAXPathEventSource

Retrieve the current XPathHandler which receives the event callbacks.

Specified by:

getXPathHandler in interface SAXPathEventSource

Returns:

The currently installed XPathHandler.

parse

public void parse(java.lang.String xpath)
           throws SAXPathException

Description copied from interface: XPathReader

Perform parsing of the textual XPath expression, and produce event callbacks to an XPathHandler.

Specified by:

parse in interface XPathReader

Parameters:

xpath - The textual XPath expression to parse.

Throws:

SAXPathException - In the event an error occurs.

setUpParse

void setUpParse(java.lang.String xpath)

pathExpr

void pathExpr()
        throws SAXPathException

Throws:

SAXPathException

numberDouble

void numberDouble()
            throws SAXPathException

Throws:

SAXPathException

numberInteger

void numberInteger()
             throws SAXPathException

Throws:

SAXPathException

literal

void literal()
       throws SAXPathException

Throws:

SAXPathException

functionCall

void functionCall()
            throws SAXPathException

Throws:

SAXPathException

arguments

void arguments()
         throws SAXPathException

Throws:

SAXPathException

filterExpr

void filterExpr()
          throws SAXPathException

Throws:

SAXPathException

variableReference

void variableReference()
                 throws SAXPathException

Throws:

SAXPathException

locationPath

void locationPath(boolean isAbsolute)
            throws SAXPathException

Throws:

SAXPathException

absoluteLocationPath

void absoluteLocationPath()
                    throws SAXPathException

Throws:

SAXPathException

relativeLocationPath

void relativeLocationPath()
                    throws SAXPathException

Throws:

SAXPathException

steps

void steps()
     throws SAXPathException

Throws:

SAXPathException

step

void step(boolean first)
    throws SAXPathException

Throws:

SAXPathException

axisSpecifier

int axisSpecifier()
            throws SAXPathException

Throws:

SAXPathException

nodeTest

void nodeTest(int axis)
        throws SAXPathException

Throws:

SAXPathException

nodeTypeTest

void nodeTypeTest(int axis)
            throws SAXPathException

Throws:

SAXPathException

nameTest

void nameTest(int axis)
        throws SAXPathException

Throws:

SAXPathException

abbrStep

void abbrStep()
        throws SAXPathException

Throws:

SAXPathException

predicates

void predicates()
          throws SAXPathException

Throws:

SAXPathException

predicate

void predicate()
         throws SAXPathException

Throws:

SAXPathException

predicateExpr

void predicateExpr()
             throws SAXPathException

Throws:

SAXPathException

expr

void expr()
    throws SAXPathException

Throws:

SAXPathException

orExpr

void orExpr()
      throws SAXPathException

Throws:

SAXPathException

andExpr

void andExpr()
       throws SAXPathException

Throws:

SAXPathException

equalityExpr

void equalityExpr()
            throws SAXPathException

Throws:

SAXPathException

relationalExpr

void relationalExpr()
              throws SAXPathException

Throws:

SAXPathException

additiveExpr

void additiveExpr()
            throws SAXPathException

Throws:

SAXPathException

multiplicativeExpr

void multiplicativeExpr()
                  throws SAXPathException

Throws:

SAXPathException

unaryExpr

void unaryExpr()
         throws SAXPathException

Throws:

SAXPathException

unionExpr

void unionExpr()
         throws SAXPathException

Throws:

SAXPathException

match

Token match(int tokenType)

LA

int LA(int position)

LT

Token LT(int position)

isNodeTypeName

boolean isNodeTypeName(Token name)

throwSyntaxException

void throwSyntaxException(java.lang.String message)
                    throws SAXPathException

Throws:

SAXPathException

throwInvalidAxis

void throwInvalidAxis(java.lang.String invalidAxis)
                throws SAXPathException

Throws:

SAXPathException

throwUnexpected

void throwUnexpected()
               throws SAXPathException

Throws:

SAXPathException