Package com.saxonica.ee.stream.adjunct

Class MergeInstrAdjunct.MergePusher

java.lang.Object

com.saxonica.ee.stream.adjunct.MergeInstrAdjunct.MergePusher

All Implemented Interfaces:

PushEvaluator

Enclosing class:

MergeInstrAdjunct

public static class MergeInstrAdjunct.MergePusher
extends Object
implements PushEvaluator

Constructor Summary

Constructors

Constructor	Description
MergePusher(MergeInstr.MergeSource ms, PackageData pd, String href, ParseOptions options)

Method Summary

Modifier and Type	Method	Description
TailCall	processLeavingTail(Outputter output, XPathContext context)	Evaluate a construct in push mode, sending the value of the construct to a supplied outputter

Methods inherited from class java.lang.Object

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

Constructor Details

MergePusher

public MergePusher(MergeInstr.MergeSource ms,
 PackageData pd,
 String href,
 ParseOptions options)

Method Details

processLeavingTail

public TailCall processLeavingTail(Outputter output,
 XPathContext context)
                            throws XPathException

Description copied from interface: PushEvaluator

Evaluate a construct in push mode, sending the value of the construct to a supplied outputter

Specified by:

processLeavingTail in interface PushEvaluator

Parameters:

output - the outputter to which the result should be sent

context - the evaluation context

Returns:

either a TailCall or null. A TailCall represents unfinished work that must be completed by the caller. Specifically, if a non-null value is returned, the caller must either complete the evaluation by evaluating tail calls until null is returned (which can be conveniently achieved by calling Expression.dispatchTailCall(TailCall), or it must return the TailCall to its own caller

Throws:

XPathException - if a dynamic error occurs during the evaluation.