org.htmlunit.xpath.patterns

Class FunctionPattern

java.lang.Object

org.htmlunit.xpath.Expression

org.htmlunit.xpath.patterns.NodeTest

org.htmlunit.xpath.patterns.StepPattern

org.htmlunit.xpath.patterns.FunctionPattern

All Implemented Interfaces:

SourceLocator, SubContextList, ExpressionNode, XPathVisitable

public class FunctionPattern
extends StepPattern

Match pattern step that contains a function.

Field Summary

Fields inherited from class org.htmlunit.xpath.patterns.StepPattern

m_axis

Fields inherited from class org.htmlunit.xpath.patterns.NodeTest

m_name, m_whatToShow, SCORE_NODETEST, SCORE_NONE, SCORE_NSWILD, SCORE_OTHER, SCORE_QNAME, SHOW_BYFUNCTION, WILD

Constructor Summary

Constructors

Constructor and Description
FunctionPattern(Expression expr, int axis) Construct a FunctionPattern from a expression.

Method Summary

Modifier and Type	Method and Description
void	calcScore() Static calc of match score.
protected void	callSubtreeVisitors(XPathVisitor visitor) Call the visitors on the subtree.
XObject	execute(XPathContext xctxt) Execute an expression in the XPath runtime context, and return the result of the expression.
XObject	execute(XPathContext xctxt, int context) Execute an expression in the XPath runtime context, and return the result of the expression.
XObject	execute(XPathContext xctxt, int context, DTM dtm, int expType) Execute an expression in the XPath runtime context, and return the result of the expression.

Methods inherited from class org.htmlunit.xpath.patterns.StepPattern

calcTargetString, callVisitors, canTraverseOutsideSubtree, deepEquals, executePredicates, executeRelativePathPattern, getAxis, getLastPos, getPredicate, getPredicateCount, getPredicates, getProximityPosition, getRelativePathPattern, setAxis, setPredicates, setRelativePathPattern, toString

Methods inherited from class org.htmlunit.xpath.patterns.NodeTest

getLocalName, getNamespace, getNodeTypeTest, getStaticScore, getWhatToShow, initNodeTest, initNodeTest, setLocalName, setNamespace, setStaticScore, setWhatToShow

Methods inherited from class org.htmlunit.xpath.Expression

asIterator, asNode, assertion, bool, error, execute, exprGetParent, exprSetParent, getColumnNumber, getExpressionOwner, getLineNumber, getPublicId, getSystemId, isSameClass, isStableNumber, num

Methods inherited from class java.lang.Object

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

Constructor Detail

FunctionPattern

public FunctionPattern(Expression expr,
                       int axis)

Construct a FunctionPattern from a expression.

NEEDSDOC @param expr

Method Detail

calcScore

public final void calcScore()

Static calc of match score.

Overrides:

calcScore in class StepPattern

execute

public XObject execute(XPathContext xctxt,
                       int context)
                throws TransformerException

Execute an expression in the XPath runtime context, and return the result of the expression.

Overrides:

execute in class StepPattern

Parameters:

xctxt - The XPath runtime context.

context - The currentNode.

Returns:

The result of the expression in the form of a XObject.

Throws:

TransformerException - if a runtime exception occurs.

execute

public XObject execute(XPathContext xctxt,
                       int context,
                       DTM dtm,
                       int expType)
                throws TransformerException

Execute an expression in the XPath runtime context, and return the result of the expression.

Overrides:

execute in class StepPattern

Parameters:

xctxt - The XPath runtime context.

context - The currentNode.

dtm - The DTM of the current node.

expType - The expanded type ID of the current node.

Returns:

The result of the expression in the form of a XObject.

Throws:

TransformerException - if a runtime exception occurs.

execute

public XObject execute(XPathContext xctxt)
                throws TransformerException

Execute an expression in the XPath runtime context, and return the result of the expression.

Overrides:

execute in class StepPattern

Parameters:

xctxt - The XPath runtime context.

Returns:

The result of the expression in the form of a XObject.

Throws:

TransformerException - if a runtime exception occurs.

callSubtreeVisitors

protected void callSubtreeVisitors(XPathVisitor visitor)

Call the visitors on the subtree. Factored out from callVisitors so it may be called by derived classes.

Overrides:

callSubtreeVisitors in class StepPattern