Package net.sf.saxon.expr.accum

Class FailedAccumulatorData

java.lang.Object

net.sf.saxon.expr.accum.FailedAccumulatorData

All Implemented Interfaces:

IAccumulatorData

public class FailedAccumulatorData
extends Object
implements IAccumulatorData

Represents the values of an accumulator whose evaluation has failed. The error is retained until referenced using accumulator-before() or accumulator-after().

Constructor Summary

Constructors

Constructor	Description
FailedAccumulatorData(Accumulator acc, XPathException error)

Method Summary

Modifier and Type	Method	Description
Accumulator	getAccumulator()	Get the associated accumulator
Sequence	getValue(NodeInfo node, boolean postDescent)	Get the value of the accumulator for a given node

Methods inherited from class java.lang.Object

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

Constructor Details

FailedAccumulatorData

public FailedAccumulatorData(Accumulator acc,
 XPathException error)

Method Details

getAccumulator

public Accumulator getAccumulator()

Description copied from interface: IAccumulatorData

Get the associated accumulator

Specified by:

getAccumulator in interface IAccumulatorData

Returns:

the accumulator

getValue

public Sequence getValue(NodeInfo node,
 boolean postDescent)
                  throws XPathException

Description copied from interface: IAccumulatorData

Get the value of the accumulator for a given node

Specified by:

getValue in interface IAccumulatorData

Parameters:

node - the node in question

postDescent - false if the pre-descent value of the accumulator is required; false if the post-descent value is wanted.

Returns:

the value of the accumulator for this node

Throws:

XPathException - if any error occurs