net.sf.saxon.expr.accum

Interface IAccumulatorData

All Known Implementing Classes:

AccumulatorData, FailedAccumulatorData, PathMappedAccumulatorData, VirtualAccumulatorData

public interface IAccumulatorData

Holds the values of an accumulator function for one non-streamed document

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

Method Detail

getAccumulator

Accumulator getAccumulator()

Get the associated accumulator

Returns:

the accumulator

getValue

Sequence<?> getValue(NodeInfo node,
                     boolean postDescent)
              throws XPathException

Get the value of the accumulator for a given node

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