net.sf.saxon.expr.accum

Class PathMappedAccumulatorData

java.lang.Object

net.sf.saxon.expr.accum.PathMappedAccumulatorData

All Implemented Interfaces:

IAccumulatorData

public class PathMappedAccumulatorData
extends Object
implements IAccumulatorData

Accumulator data for a tree that is obtained by mapping the nodes in this tree to nodes in some other tree (specifically, the subtree from which this tree was originally copied with copy-accumulators=yes) and getting the accumulator value from the corresponding node in the other tree.

Constructor Summary

Constructors

Constructor and Description
PathMappedAccumulatorData(IAccumulatorData original, NodeInfo origin)

Method Summary

Modifier and Type	Method and 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 Detail

PathMappedAccumulatorData

PathMappedAccumulatorData(IAccumulatorData original,
                          NodeInfo origin)

Method Detail

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