org.jaxen
Class JaxenHandler

java.lang.Object
  org.jaxen.JaxenHandler

All Implemented Interfaces:

org.saxpath.XPathHandler

Direct Known Subclasses:

PatternHandler

public class JaxenHandler

extends java.lang.Object

implements org.saxpath.XPathHandler

SAXPath XPathHandler implementation capable of building Jaxen expression trees which can walk various different object models.

Author:

bob mcwhirter (bob@werken.com)

Field Summary

protected boolean	simplified
protected java.util.LinkedList	stack

Constructor Summary

JaxenHandler()
Construct.

Method Summary

protected void	addParameters(FunctionCallExpr function, java.util.Iterator paramIter)
protected void	addPredicates(Predicated obj, java.util.Iterator predIter)
protected void	addSteps(LocationPath locationPath, java.util.Iterator stepIter)
protected boolean	canPop()
void	endAbsoluteLocationPath()
void	endAdditiveExpr(int operator)
void	endAllNodeStep()
void	endAndExpr(boolean create)
void	endCommentNodeStep()
void	endEqualityExpr(int operator)
void	endFilterExpr()
void	endFunction()
protected void	endLocationPath()
void	endMultiplicativeExpr(int operator)
void	endNameStep()
void	endOrExpr(boolean create)
void	endPathExpr()
void	endPredicate()
void	endProcessingInstructionNodeStep()
void	endRelationalExpr(int operator)
void	endRelativeLocationPath()
protected void	endStep()
void	endTextNodeStep()
void	endUnaryExpr(int operator)
void	endUnionExpr(boolean create)
void	endXPath()
XPathExpr	getXPathExpr() Retrieve the simplified Jaxen XPath expression tree.
XPathExpr	getXPathExpr(boolean shouldSimplify) Retrieve the Jaxen XPath expression tree, optionally simplified.
XPathFactory	getXPathFactory() Retrieve the Jaxen XPathFactory used during the parse to construct the XPath expression tree.
void	literal(java.lang.String literal)
void	number(double number)
void	number(int number)
protected java.util.LinkedList	peekFrame()
protected java.lang.Object	pop()
protected java.util.LinkedList	popFrame()
protected void	push(java.lang.Object obj)
protected void	pushFrame()
protected void	returnExpr()
void	setXPathFactory(XPathFactory xpathFactory) Set the Jaxen XPathFactory to use during the parse to construct the XPath expression tree.
protected int	stackSize()
void	startAbsoluteLocationPath()
void	startAdditiveExpr()
void	startAllNodeStep(int axis)
void	startAndExpr()
void	startCommentNodeStep(int axis)
void	startEqualityExpr()
void	startFilterExpr()
void	startFunction(java.lang.String prefix, java.lang.String functionName)
void	startMultiplicativeExpr()
void	startNameStep(int axis, java.lang.String prefix, java.lang.String localName)
void	startOrExpr()
void	startPathExpr()
void	startPredicate()
void	startProcessingInstructionNodeStep(int axis, java.lang.String name)
void	startRelationalExpr()
void	startRelativeLocationPath()
void	startTextNodeStep(int axis)
void	startUnaryExpr()
void	startUnionExpr()
void	startXPath()
void	variableReference(java.lang.String prefix, java.lang.String variableName)

Methods inherited from class java.lang.Object

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

Field Detail

simplified

protected boolean simplified

stack

protected java.util.LinkedList stack

Constructor Detail

JaxenHandler

public JaxenHandler()

Construct.

Method Detail

setXPathFactory

public void setXPathFactory(XPathFactory xpathFactory)

Set the Jaxen XPathFactory to use during the parse to construct the XPath expression tree.

Parameters:

xpathFactory - The factory to use during the parse.

getXPathFactory

public XPathFactory getXPathFactory()

Retrieve the Jaxen XPathFactory used during the parse to construct the XPath expression tree.

Returns:

The XPathFactory used during the parse.

getXPathExpr

public XPathExpr getXPathExpr()

Retrieve the simplified Jaxen XPath expression tree.

This method is only valid once XPathReader.parse(...) successfully returned.

Returns:

The XPath expression tree.

getXPathExpr

public XPathExpr getXPathExpr(boolean shouldSimplify)

Retrieve the Jaxen XPath expression tree, optionally simplified.

This method is only valid once XPathReader.parse(...) successfully returned.

Returns:

The XPath expression tree.

startXPath

public void startXPath()
                throws JaxenException

Specified by:

startXPath in interface org.saxpath.XPathHandler

Throws:

JaxenException

endXPath

public void endXPath()
              throws JaxenException

Specified by:

endXPath in interface org.saxpath.XPathHandler

Throws:

JaxenException

startPathExpr

public void startPathExpr()
                   throws JaxenException

Specified by:

startPathExpr in interface org.saxpath.XPathHandler

Throws:

JaxenException

endPathExpr

public void endPathExpr()
                 throws JaxenException

Specified by:

endPathExpr in interface org.saxpath.XPathHandler

Throws:

JaxenException

startAbsoluteLocationPath

public void startAbsoluteLocationPath()
                               throws JaxenException

Specified by:

startAbsoluteLocationPath in interface org.saxpath.XPathHandler

Throws:

JaxenException

endAbsoluteLocationPath

public void endAbsoluteLocationPath()
                             throws JaxenException

Specified by:

endAbsoluteLocationPath in interface org.saxpath.XPathHandler

Throws:

JaxenException

startRelativeLocationPath

public void startRelativeLocationPath()
                               throws JaxenException

Specified by:

startRelativeLocationPath in interface org.saxpath.XPathHandler

Throws:

JaxenException

endRelativeLocationPath

public void endRelativeLocationPath()
                             throws JaxenException

Specified by:

endRelativeLocationPath in interface org.saxpath.XPathHandler

Throws:

JaxenException

endLocationPath

protected void endLocationPath()
                        throws JaxenException

Throws:

JaxenException

addSteps

protected void addSteps(LocationPath locationPath,
                        java.util.Iterator stepIter)

startNameStep

public void startNameStep(int axis,
                          java.lang.String prefix,
                          java.lang.String localName)
                   throws JaxenException

Specified by:

startNameStep in interface org.saxpath.XPathHandler

Throws:

JaxenException

endNameStep

public void endNameStep()
                 throws JaxenException

Specified by:

endNameStep in interface org.saxpath.XPathHandler

Throws:

JaxenException

startTextNodeStep

public void startTextNodeStep(int axis)
                       throws JaxenException

Specified by:

startTextNodeStep in interface org.saxpath.XPathHandler

Throws:

JaxenException

endTextNodeStep

public void endTextNodeStep()
                     throws JaxenException

Specified by:

endTextNodeStep in interface org.saxpath.XPathHandler

Throws:

JaxenException

startCommentNodeStep

public void startCommentNodeStep(int axis)
                          throws JaxenException

Specified by:

startCommentNodeStep in interface org.saxpath.XPathHandler

Throws:

JaxenException

endCommentNodeStep

public void endCommentNodeStep()
                        throws JaxenException

Specified by:

endCommentNodeStep in interface org.saxpath.XPathHandler

Throws:

JaxenException

startAllNodeStep

public void startAllNodeStep(int axis)
                      throws JaxenException

Specified by:

startAllNodeStep in interface org.saxpath.XPathHandler

Throws:

JaxenException

endAllNodeStep

public void endAllNodeStep()
                    throws JaxenException

Specified by:

endAllNodeStep in interface org.saxpath.XPathHandler

Throws:

JaxenException

startProcessingInstructionNodeStep

public void startProcessingInstructionNodeStep(int axis,
                                               java.lang.String name)
                                        throws JaxenException

Specified by:

startProcessingInstructionNodeStep in interface org.saxpath.XPathHandler

Throws:

JaxenException

endProcessingInstructionNodeStep

public void endProcessingInstructionNodeStep()
                                      throws JaxenException

Specified by:

endProcessingInstructionNodeStep in interface org.saxpath.XPathHandler

Throws:

JaxenException

endStep

protected void endStep()

startPredicate

public void startPredicate()
                    throws JaxenException

Specified by:

startPredicate in interface org.saxpath.XPathHandler

Throws:

JaxenException

endPredicate

public void endPredicate()
                  throws JaxenException

Specified by:

endPredicate in interface org.saxpath.XPathHandler

Throws:

JaxenException

startFilterExpr

public void startFilterExpr()
                     throws JaxenException

Specified by:

startFilterExpr in interface org.saxpath.XPathHandler

Throws:

JaxenException

endFilterExpr

public void endFilterExpr()
                   throws JaxenException

Specified by:

endFilterExpr in interface org.saxpath.XPathHandler

Throws:

JaxenException

addPredicates

protected void addPredicates(Predicated obj,
                             java.util.Iterator predIter)

returnExpr

protected void returnExpr()

startOrExpr

public void startOrExpr()
                 throws JaxenException

Specified by:

startOrExpr in interface org.saxpath.XPathHandler

Throws:

JaxenException

endOrExpr

public void endOrExpr(boolean create)
               throws JaxenException

Specified by:

endOrExpr in interface org.saxpath.XPathHandler

Throws:

JaxenException

startAndExpr

public void startAndExpr()
                  throws JaxenException

Specified by:

startAndExpr in interface org.saxpath.XPathHandler

Throws:

JaxenException

endAndExpr

public void endAndExpr(boolean create)
                throws JaxenException

Specified by:

endAndExpr in interface org.saxpath.XPathHandler

Throws:

JaxenException

startEqualityExpr

public void startEqualityExpr()
                       throws JaxenException

Specified by:

startEqualityExpr in interface org.saxpath.XPathHandler

Throws:

JaxenException

endEqualityExpr

public void endEqualityExpr(int operator)
                     throws JaxenException

Specified by:

endEqualityExpr in interface org.saxpath.XPathHandler

Throws:

JaxenException

startRelationalExpr

public void startRelationalExpr()
                         throws JaxenException

Specified by:

startRelationalExpr in interface org.saxpath.XPathHandler

Throws:

JaxenException

endRelationalExpr

public void endRelationalExpr(int operator)
                       throws JaxenException

Specified by:

endRelationalExpr in interface org.saxpath.XPathHandler

Throws:

JaxenException

startAdditiveExpr

public void startAdditiveExpr()
                       throws JaxenException

Specified by:

startAdditiveExpr in interface org.saxpath.XPathHandler

Throws:

JaxenException

endAdditiveExpr

public void endAdditiveExpr(int operator)
                     throws JaxenException

Specified by:

endAdditiveExpr in interface org.saxpath.XPathHandler

Throws:

JaxenException

startMultiplicativeExpr

public void startMultiplicativeExpr()
                             throws JaxenException

Specified by:

startMultiplicativeExpr in interface org.saxpath.XPathHandler

Throws:

JaxenException

endMultiplicativeExpr

public void endMultiplicativeExpr(int operator)
                           throws JaxenException

Specified by:

endMultiplicativeExpr in interface org.saxpath.XPathHandler

Throws:

JaxenException

startUnaryExpr

public void startUnaryExpr()
                    throws JaxenException

Specified by:

startUnaryExpr in interface org.saxpath.XPathHandler

Throws:

JaxenException

endUnaryExpr

public void endUnaryExpr(int operator)
                  throws JaxenException

Specified by:

endUnaryExpr in interface org.saxpath.XPathHandler

Throws:

JaxenException

startUnionExpr

public void startUnionExpr()
                    throws JaxenException

Specified by:

startUnionExpr in interface org.saxpath.XPathHandler

Throws:

JaxenException

endUnionExpr

public void endUnionExpr(boolean create)
                  throws JaxenException

Specified by:

endUnionExpr in interface org.saxpath.XPathHandler

Throws:

JaxenException

number

public void number(int number)
            throws JaxenException

Specified by:

number in interface org.saxpath.XPathHandler

Throws:

JaxenException

number

public void number(double number)
            throws JaxenException

Specified by:

number in interface org.saxpath.XPathHandler

Throws:

JaxenException

literal

public void literal(java.lang.String literal)
             throws JaxenException

Specified by:

literal in interface org.saxpath.XPathHandler

Throws:

JaxenException

variableReference

public void variableReference(java.lang.String prefix,
                              java.lang.String variableName)
                       throws JaxenException

Specified by:

variableReference in interface org.saxpath.XPathHandler

Throws:

JaxenException

startFunction

public void startFunction(java.lang.String prefix,
                          java.lang.String functionName)
                   throws JaxenException

Specified by:

startFunction in interface org.saxpath.XPathHandler

Throws:

JaxenException

endFunction

public void endFunction()
                 throws JaxenException

Specified by:

endFunction in interface org.saxpath.XPathHandler

Throws:

JaxenException

addParameters

protected void addParameters(FunctionCallExpr function,
                             java.util.Iterator paramIter)

stackSize

protected int stackSize()

push

protected void push(java.lang.Object obj)

pop

protected java.lang.Object pop()

canPop

protected boolean canPop()

pushFrame

protected void pushFrame()

popFrame

protected java.util.LinkedList popFrame()

peekFrame

protected java.util.LinkedList peekFrame()