VirtualAccumulatorData

java.lang.Object
- net.sf.saxon.expr.accum.VirtualAccumulatorData

All Implemented Interfaces:

IAccumulatorData
```
public class VirtualAccumulatorData
extends java.lang.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

All Methods Instance Methods Concrete Methods
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 Detail
  - VirtualAccumulatorData
```
public VirtualAccumulatorData(IAccumulatorData realData)
```
- 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
```
    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