org.apache.xpath.patterns

Class FunctionPattern

Implemented Interfaces:
ExpressionOwner, java.io.Serializable, ExpressionNode, SourceLocator, SubContextList, XPathVisitable

public class FunctionPattern
extends StepPattern

Match pattern step that contains a function.
See Also:
Serialized Form

Field Summary

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

SCORE_NODETEST, SCORE_NONE, SCORE_NSWILD, SCORE_OTHER, SCORE_QNAME, SHOW_BYFUNCTION, SUPPORTS_PRE_STRIPPING, WILD

Constructor Summary

FunctionPattern(Expression expr, int axis, int predaxis)
Construct a FunctionPattern from a expression.

Method Summary

void
calcScore()
Static calc of match score.
XObject
execute(XPathContext xctxt)
Test a node to see if it matches the given node test.
XObject
execute(XPathContext xctxt, int context)
Test a node to see if it matches the given node test.
XObject
execute(XPathContext xctxt, int context, DTM dtm, int expType)
Test a node to see if it matches the given node test.
void
fixupVariables(java.util.Vector vars, int globalsSize)
This function is used to fixup variables from QNames to stack frame indexes at stylesheet build time.

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

calcScore, calcTargetString, callVisitors, canTraverseOutsideSubtree, deepEquals, execute, execute, execute, fixupVariables, getAxis, getExpression, getLastPos, getMatchScore, getPredicate, getPredicateCount, getPredicates, getProximityPosition, getRelativePathPattern, getTargetString, setAxis, setExpression, setPredicates, setRelativePathPattern, toString

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

callVisitors, debugWhatToShow, deepEquals, execute, execute, execute, fixupVariables, getDefaultScore, getLocalName, getNamespace, getNodeTypeTest, getStaticScore, getWhatToShow, initNodeTest, initNodeTest, setLocalName, setNamespace, setStaticScore, setWhatToShow

Methods inherited from class org.apache.xpath.Expression

asIterator, asIteratorRaw, asNode, assertion, bool, canTraverseOutsideSubtree, deepEquals, error, execute, execute, execute, execute, executeCharsToContentHandler, exprAddChild, exprGetChild, exprGetNumChildren, exprGetParent, exprSetParent, fixupVariables, getColumnNumber, getExpressionOwner, getLineNumber, getPublicId, getSystemId, isNodesetExpr, isStableNumber, num, warn, xstr

Constructor Details

FunctionPattern

public FunctionPattern(Expression expr,
                       int axis,
                       int predaxis)
Construct a FunctionPattern from a expression. NEEDSDOC @param expr

Method Details

calcScore

public final void calcScore()
Static calc of match score.
Overrides:
calcScore in interface StepPattern

execute

public XObject execute(XPathContext xctxt)
            throws javax.xml.transform.TransformerException
Test a node to see if it matches the given node test.
Overrides:
execute in interface StepPattern
Parameters:
xctxt - XPath runtime context.

execute

public XObject execute(XPathContext xctxt,
                       int context)
            throws javax.xml.transform.TransformerException
Test a node to see if it matches the given node test.
Overrides:
execute in interface StepPattern
Parameters:
xctxt - XPath runtime context.

execute

public XObject execute(XPathContext xctxt,
                       int context,
                       DTM dtm,
                       int expType)
            throws javax.xml.transform.TransformerException
Test a node to see if it matches the given node test.
Overrides:
execute in interface StepPattern
Parameters:
xctxt - XPath runtime context.

fixupVariables

public void fixupVariables(java.util.Vector vars,
                           int globalsSize)
This function is used to fixup variables from QNames to stack frame indexes at stylesheet build time.
Overrides:
fixupVariables in interface StepPattern
Parameters:
vars - List of QNames that correspond to variables. This list should be searched backwards for the first qualified name that corresponds to the variable reference qname. The position of the QName in the vector from the start of the vector will be its position in the stack frame (but variables above the globalsTop value will need to be offset to the current stack frame).

Copyright B) 2006 Apache XML Project. All Rights Reserved.