net.sf.saxon.expr
Class ParentNodeExpression

java.lang.Object
  net.sf.saxon.expr.ComputedExpression
      net.sf.saxon.expr.SingleNodeExpression
          net.sf.saxon.expr.ParentNodeExpression

All Implemented Interfaces:

Container, Expression, InstructionInfoProvider, java.io.Serializable, javax.xml.transform.SourceLocator

public class ParentNodeExpression

extends SingleNodeExpression

Class ParentNodeExpression represents the XPath expression ".." or "parent::node()"

See Also:

Serialized Form

Field Summary

Fields inherited from class net.sf.saxon.expr.ComputedExpression

locationId, staticProperties

Fields inherited from interface net.sf.saxon.expr.Expression

EVALUATE_METHOD, ITERATE_METHOD, PROCESS_METHOD

Constructor Summary

ParentNodeExpression()

Method Summary

void	display(int level, NamePool pool, java.io.PrintStream out) Diagnostic print of expression structure
boolean	equals(java.lang.Object other) Is this expression the same as another expression?
NodeInfo	getNode(XPathContext context) Return the node selected by this SingleNodeExpression
int	hashCode() get HashCode for comparing two expressions

Methods inherited from class net.sf.saxon.expr.SingleNodeExpression

computeCardinality, computeSpecialProperties, effectiveBooleanValue, evaluateItem, getIntrinsicDependencies, getItemType, iterate, optimize, typeCheck

Methods inherited from class net.sf.saxon.expr.ComputedExpression

adoptChildExpression, checkPermittedContents, computeDependencies, computeStaticProperties, doPromotion, dynamicError, dynamicError, evaluateAsString, getCardinality, getColumnNumber, getConstructType, getDependencies, getExecutable, getHostLanguage, getImplementationMethod, getInstructionInfo, getLineNumber, getLocationId, getLocationProvider, getParentExpression, getPublicId, getSlotsUsed, getSpecialProperties, getSystemId, hasBadParentPointer, iterateSubExpressions, markTailFunctionCalls, process, promote, resetStaticProperties, setLocationId, setParentExpression, simplify, suppressValidation, typeError, typeError

Methods inherited from class java.lang.Object

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

Constructor Detail

ParentNodeExpression

public ParentNodeExpression()

Method Detail

getNode

public NodeInfo getNode(XPathContext context)
                 throws XPathException

Return the node selected by this SingleNodeExpression

Specified by:

getNode in class SingleNodeExpression

Parameters:

context - The context for the evaluation

Returns:

the parent of the current node defined by the context

Throws:

XPathException

equals

public boolean equals(java.lang.Object other)

Is this expression the same as another expression?

hashCode

public int hashCode()

get HashCode for comparing two expressions

display

public void display(int level,
                    NamePool pool,
                    java.io.PrintStream out)

Diagnostic print of expression structure

Parameters:

level - indentation level for this expression

pool - NamePool used to expand any names appearing in the expression

out - Output destination