net.sf.saxon.expr.accum

Class PathMappedAccumulatorData

java.lang.Object

net.sf.saxon.expr.accum.PathMappedAccumulatorData

All Implemented Interfaces:

IAccumulatorData

public class PathMappedAccumulatorData
extends java.lang.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.

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

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