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

Method Details

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 - if any error occurs