net.sf.saxon.expr.instruct

Class ApplyTemplates.ApplyTemplatesPackage

java.lang.Object

net.sf.saxon.expr.instruct.ApplyTemplates.ApplyTemplatesPackage

All Implemented Interfaces:

TailCall

Enclosing class:

ApplyTemplates

protected static class ApplyTemplates.ApplyTemplatesPackage
extends Object
implements TailCall

An ApplyTemplatesPackage is an object that encapsulates the sequence of nodes to be processed, the mode, the parameters to be supplied, and the execution context. This object can be returned as a tail call, so that the actual call is made from a lower point on the stack, allowing a tail-recursive template to execute in a finite stack size

Method Summary

Methods

Modifier and Type	Method and Description
TailCall	processLeavingTail() Process this TailCall (that is, executed the template call that is packaged in this object).

Methods inherited from class java.lang.Object

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

Method Detail

processLeavingTail

public TailCall processLeavingTail()
                            throws XPathException

Description copied from interface: TailCall

Process this TailCall (that is, executed the template call that is packaged in this object). This may return a further TailCall, which should also be processed: this is the mechanism by which a nested set of recursive calls is converted into an iteration.

Specified by:

processLeavingTail in interface TailCall

Returns:

a further TailCall, if the recursion continues, or null, indicating that the recursion has terminated.

Throws:

XPathException - if any error occurs processing the tail call