com.novell.xml.xpath
Class NodeSetExpr

java.lang.Object
  com.novell.xml.xpath.NodeSetExpr

All Implemented Interfaces:

Expression

Direct Known Subclasses:

AbsoluteLocationPath, FilterExpr, PathExpr, RelativeLocationPath

public abstract class NodeSetExpr

extends Object

implements Expression

Base class for expressions that return node-sets

Constructor Summary

NodeSetExpr()

Method Summary

void	dump(PrintWriter writer, int indent) Print the expression in a readable form for debugging.
Class	getResultType() Return the Class object describing the result type of the expression.
boolean	isConstant() Return true if the expression is a constant value.
void	registerForReset(XPathResetRegistrar registrar) Register this expression or any subexpression that implements XPathResetCache with an object that wants to call resetCache()

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.novell.xml.xpath.Expression

evaluate

Constructor Detail

NodeSetExpr

public NodeSetExpr()

Method Detail

isConstant

public boolean isConstant()

Return true if the expression is a constant value. Node set expressions are never constant, since they depend on the context node, which is always variable

Specified by:

isConstant in interface Expression

Returns:

false

getResultType

public Class getResultType()

Return the Class object describing the result type of the expression.

Specified by:

getResultType in interface Expression

Returns:

A Class object.

registerForReset

public void registerForReset(XPathResetRegistrar registrar)

Register this expression or any subexpression that implements XPathResetCache with an object that wants to call resetCache()

Specified by:

registerForReset in interface Expression

dump

public void dump(PrintWriter writer,
                 int indent)

Print the expression in a readable form for debugging.

Specified by:

dump in interface Expression

Parameters:

writer - The output device.

indent - Number of tabs to indent the result.