Package net.sf.saxon.expr.accum

Class VirtualAccumulatorData

java.lang.Object

net.sf.saxon.expr.accum.VirtualAccumulatorData

All Implemented Interfaces:

IAccumulatorData

public class VirtualAccumulatorData
extends Object
implements IAccumulatorData

Holds the values of an accumulator function for a virtual copy of a document (where the accumulator values are copies of those on the underlying document)

Constructor Summary

Constructors

Constructor	Description
VirtualAccumulatorData(IAccumulatorData realData)

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

VirtualAccumulatorData

public VirtualAccumulatorData(IAccumulatorData realData)

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

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