org.apache.xpath.patterns
Class FunctionPattern

java.lang.Object
  |
  +--org.apache.xpath.Expression
        |
        +--org.apache.xpath.patterns.NodeTest
              |
              +--org.apache.xpath.patterns.StepPattern
                    |
                    +--org.apache.xpath.patterns.FunctionPattern

public class FunctionPattern

extends StepPattern

**For advanced use only** Match pattern step that contains a function.

See Also:

Serialized Form

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

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

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

debugWhatToShow, 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, error, execute, executeCharsToContentHandler, exprAddChild, exprGetChild, exprGetNumChildren, exprGetParent, exprSetParent, getColumnNumber, getExpressionOwner, getLineNumber, getPublicId, getSystemId, isNodesetExpr, isStableNumber, num, warn, xstr

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

FunctionPattern

public FunctionPattern(Expression expr,
                       int axis,
                       int predaxis)

Construct a FunctionPattern from a expression.

Parameters:

a - should be a expression. NEEDSDOC @param expr

Method Detail

calcScore

public final void calcScore()

Static calc of match score.

Overrides:

calcScore in class StepPattern

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.

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).

Overrides:

fixupVariables in class StepPattern

execute

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

Test a node to see if it matches the given node test.

Parameters:

xctxt - XPath runtime context.

Returns:

NodeTest.SCORE_NODETEST, NodeTest.SCORE_NONE, NodeTest.SCORE_NSWILD, NodeTest.SCORE_QNAME, or NodeTest.SCORE_OTHER.

Throws:

TransformerException -

Overrides:

execute in class StepPattern

execute

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

Test a node to see if it matches the given node test.

Parameters:

xctxt - XPath runtime context.

Returns:

NodeTest.SCORE_NODETEST, NodeTest.SCORE_NONE, NodeTest.SCORE_NSWILD, NodeTest.SCORE_QNAME, or NodeTest.SCORE_OTHER.

Throws:

TransformerException -

Overrides:

execute in class StepPattern

execute

public XObject execute(XPathContext xctxt)
                throws TransformerException

Test a node to see if it matches the given node test.

Parameters:

xctxt - XPath runtime context.

Returns:

NodeTest.SCORE_NODETEST, NodeTest.SCORE_NONE, NodeTest.SCORE_NSWILD, NodeTest.SCORE_QNAME, or NodeTest.SCORE_OTHER.

Throws:

TransformerException -

Overrides:

execute in class StepPattern