Package net.sf.saxon.expr

Class FilterExpression.FilterExprElaborator

java.lang.Object

net.sf.saxon.expr.elab.Elaborator

net.sf.saxon.expr.elab.PullElaborator

net.sf.saxon.expr.FilterExpression.FilterExprElaborator

Enclosing class:

FilterExpression

public static class FilterExpression.FilterExprElaborator
extends PullElaborator

Elaborator for a filter expression

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	FilterExpression.FilterExprElaborator.PositionalFilteredIterator	An iterator for a filter expression in which the predicate is capable of evaluating as a number (in which case it needs to be compared with the context position, rather than being converted to a boolean)
static class	FilterExpression.FilterExprElaborator.SimpleFilteredIterator	An iterator for a filter expression where it is known that the filter value will not be numeric, and can therefore be evaluated directly as a boolean

Constructor Summary

Constructors

Constructor	Description
FilterExprElaborator()

Method Summary

Modifier and Type	Method	Description
PullEvaluator	elaborateForPull()	Get a function that evaluates the underlying expression in the form of a SequenceIterator

Methods inherited from class net.sf.saxon.expr.elab.PullElaborator

eagerly, elaborateForBoolean, elaborateForItem, elaborateForPush, elaborateForUnicodeString

Methods inherited from class net.sf.saxon.expr.elab.Elaborator

elaborateForString, elaborateForUpdate, getConfiguration, getExpression, handleNullString, handleNullUnicodeString, handlePossiblyNullString, handlePossiblyNullUnicodeString, lazily, setExpression

Methods inherited from class java.lang.Object

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

Constructor Detail

FilterExprElaborator

public FilterExprElaborator()

Method Detail

elaborateForPull

public PullEvaluator elaborateForPull()

Description copied from class: Elaborator

Get a function that evaluates the underlying expression in the form of a SequenceIterator

Specified by:

elaborateForPull in class PullElaborator

Returns:

an evaluator for the expression that returns a SequenceIterator