org.planx.xpath.expr
Class LocationPath

java.lang.Object
  org.planx.xpath.expr.Expression
      org.planx.xpath.expr.LocationPath

public class LocationPath
extends Expression

A LocationPath consists of a list of Step objects and an indication of whether it is an absolute location path or not.

Field Summary

protected boolean	isAbsolute
protected List	steps

Constructor Summary

LocationPath()

Method Summary

void	appendStep(Step step)
XObject	evaluate(Context ctxt, Environment env, Navigator nav) Evaluate the expression for the given context using the specified environment.
XObject	evaluate(XNodeSet nodes, Environment env, Navigator nav) Evaluate this location path using each of the nodes in the specified set as context node.
boolean	isAbsolute()
void	prependStep(Step step)
void	setAbsolute(boolean isAbsolute)
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

steps

protected List steps

isAbsolute

protected boolean isAbsolute

Constructor Detail

LocationPath

public LocationPath()

Method Detail

appendStep

public void appendStep(Step step)

prependStep

public void prependStep(Step step)

isAbsolute

public boolean isAbsolute()

setAbsolute

public void setAbsolute(boolean isAbsolute)

evaluate

public XObject evaluate(Context ctxt,
                        Environment env,
                        Navigator nav)
                 throws XPathException

Description copied from class: Expression

Evaluate the expression for the given context using the specified environment.

Specified by:

evaluate in class Expression

Throws:

XPathException

evaluate

public XObject evaluate(XNodeSet nodes,
                        Environment env,
                        Navigator nav)
                 throws XPathException

Evaluate this location path using each of the nodes in the specified set as context node. The result is the union of all the sets found this way. The results are returned in document order.

Throws:

XPathException

toString

public String toString()

Overrides:

toString in class Object