com.saxonica.xslt3.instruct

Class AccumulatorManagerPE

java.lang.Object

com.saxonica.xslt3.instruct.AccumulatorManagerPE

All Implemented Interfaces:

IAccumulatorManager

Direct Known Subclasses:

AccumulatorManagerEE

public class AccumulatorManagerPE
extends Object
implements IAccumulatorManager

Manager for accumulator functions (XSLT 3.0). Like the KeyManager, this is able to maintain data for the same accumulator in multiple executions of a stylesheet: the accumulator data is designed to be available for garbage collection if either the document or the stylesheet is no longer needed.

This class also performs the role of a function library, handling requests to bind the two accumulator functions.

Field Summary

Fields

Modifier and Type	Field and Description
protected Map<StructuredQName,Accumulator>	map

Constructor Summary

Constructors

Constructor and Description
AccumulatorManagerPE()

Method Summary

Methods

Modifier and Type	Method and Description
void	addAccumulator(Accumulator acc) Register an accumulator with the manager
Accumulator	getAccumulator(StructuredQName name)
AccumulatorData	getAccumulatorData(DocumentInfo doc, Accumulator acc, XPathContext context) Get the data relating to a particular accumulator for a particular unstreamed document tree
Iterable<Accumulator>	getAllAccumulators() Get all the accumulators

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

map

protected Map<StructuredQName,Accumulator> map

Constructor Detail

AccumulatorManagerPE

public AccumulatorManagerPE()

Method Detail

addAccumulator

public void addAccumulator(Accumulator acc)

Register an accumulator with the manager

Parameters:

acc - the accumulator to be registered

getAccumulator

public Accumulator getAccumulator(StructuredQName name)

getAccumulatorData

public AccumulatorData getAccumulatorData(DocumentInfo doc,
                                 Accumulator acc,
                                 XPathContext context)
                                   throws XPathException

Get the data relating to a particular accumulator for a particular unstreamed document tree

Parameters:

doc - the source document tree in question

acc - the required accumulator

context - the XPath dynamic evaluation context

Returns:

a data structure holding the evaluated values of the accumulator for this source document

Throws:

XPathException - if any dynamic error occurs

getAllAccumulators

public Iterable<Accumulator> getAllAccumulators()

Get all the accumulators

Specified by:

getAllAccumulators in interface IAccumulatorManager