Package 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:

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

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

Constructors

Constructor	Description
ParentNodeExpression()

Method Summary

Modifier and Type	Method	Description
void	display(int level, java.io.PrintStream out, Configuration config)	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.ComputedExpression

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

Methods inherited from class java.lang.Object

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

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

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

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?

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

get HashCode for comparing two expressions

Overrides:

hashCode in class java.lang.Object

display

public void display(int level,
                    java.io.PrintStream out,
                    Configuration config)

Diagnostic print of expression structure

Parameters:

level - indentation level for this expression

out - Output destination