net.sf.saxon.functions

Class PositionAndLast.Last

java.lang.Object

net.sf.saxon.om.AbstractItem

net.sf.saxon.functions.AbstractFunction

net.sf.saxon.functions.SystemFunction

net.sf.saxon.functions.ContextAccessorFunction

net.sf.saxon.functions.PositionAndLast

net.sf.saxon.functions.PositionAndLast.Last

All Implemented Interfaces:

Callable, Function, GroundedValue, Item, Sequence

Enclosing class:

PositionAndLast

public static class PositionAndLast.Last
extends PositionAndLast

Nested Class Summary

Nested classes/interfaces inherited from class net.sf.saxon.functions.PositionAndLast

PositionAndLast.Last, PositionAndLast.Position

Constructor Summary

Constructors

Constructor and Description
Last()

Method Summary

Modifier and Type	Method and Description
Int64Value	evaluateItem(XPathContext c) Evaluate in a general context
java.lang.String	getCompilerName() Get the (local) name of a class that can be used to generate bytecode for this system function
java.lang.String	getStreamerName() Get a name that identifies the class that can be used to evaluate this function in streaming mode, that is, supplying one item or event at a time as it is delivered by the parser.

Methods inherited from class net.sf.saxon.functions.PositionAndLast

bindContext, call, getIntegerBounds, getNetCost, isContextPossiblyUndefined, supplyTypeInformation

Methods inherited from class net.sf.saxon.functions.SystemFunction

dependsOnContextItem, dynamicCall, equals, export, exportAdditionalArguments, exportAttributes, fixArguments, getArity, getCardinality, getContextNode, getDescription, getDetails, getErrorCodeForTypeErrors, getFunctionItemType, getFunctionName, getOperandRoles, getRequiredType, getResultItemType, getResultItemType, getRetainedStaticContext, getSpecialProperties, getStaticBaseUriString, importAttributes, isTrustedResultType, makeCall, makeFunction, makeFunctionCall, makeOptimizedFunctionCall, resultIfEmpty, setArity, setDetails, setRetainedStaticContext, typeCheckCaller

Methods inherited from class net.sf.saxon.functions.AbstractFunction

atomize, deepEquals, effectiveBooleanValue, getAnnotations, getStringValue, getStringValueCS, isArray, isMap, makeNewContext, simplify, typeCheck

Methods inherited from class net.sf.saxon.om.AbstractItem

getLength, head, isStreamed, itemAt, iterate, reduce, subsequence

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.saxon.om.Function

iterate

Methods inherited from interface net.sf.saxon.om.Item

head

Methods inherited from interface net.sf.saxon.om.GroundedValue

getLength, head, itemAt, reduce, subsequence

Constructor Detail

Last

public Last()

Method Detail

evaluateItem

public Int64Value evaluateItem(XPathContext c)
                        throws XPathException

Description copied from class: PositionAndLast

Evaluate in a general context

Specified by:

evaluateItem in class PositionAndLast

Throws:

XPathException

getCompilerName

public java.lang.String getCompilerName()

Description copied from class: SystemFunction

Get the (local) name of a class that can be used to generate bytecode for this system function

Overrides:

getCompilerName in class SystemFunction

Returns:

the name of a bytecode generation class, or null if there is no bytecode support for this function

getStreamerName

public java.lang.String getStreamerName()

Description copied from class: SystemFunction

Get a name that identifies the class that can be used to evaluate this function in streaming mode, that is, supplying one item or event at a time as it is delivered by the parser. Special streaming support is generally available in Saxon-EE for all system functions that take a sequence as their argument.

Overrides:

getStreamerName in class SystemFunction

Returns:

a name that identifies a class that supports streamed evaluation of this system function, or null if no such class is available. The mapping of names to classes is defined in the Saxon-EE class StreamerMap. In non-streaming Saxon editions (HE and PE) the method always returns null.