Package net.sf.saxon.expr
Class SystemFunctionCall.SystemFunctionCallElaborator
java.lang.Object
net.sf.saxon.expr.elab.Elaborator
net.sf.saxon.expr.elab.PullElaborator
net.sf.saxon.expr.FunctionCall.FunctionCallElaborator
net.sf.saxon.expr.SystemFunctionCall.SystemFunctionCallElaborator
- Enclosing class:
SystemFunctionCall
public static class SystemFunctionCall.SystemFunctionCallElaborator
extends FunctionCall.FunctionCallElaborator
Elaborator for a system function call, used in cases where the specific function call has no custom support
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Field Summary
Fields inherited from class net.sf.saxon.expr.FunctionCall.FunctionCallElaborator
argumentEvaluators
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionGet a function that evaluates the underlying expression in the form of aItem
.Get a function that evaluates the underlying expression in the form of aSequenceIterator
Get a function that evaluates the underlying expression in push mode, by writing events to anOutputter
void
setExpression
(Expression expr) Set the expression being elaboratedMethods inherited from class net.sf.saxon.expr.FunctionCall.FunctionCallElaborator
allocateArgumentEvaluators, evaluateArguments
Methods inherited from class net.sf.saxon.expr.elab.PullElaborator
eagerly, elaborateForBoolean, elaborateForUnicodeString
Methods inherited from class net.sf.saxon.expr.elab.Elaborator
elaborateForString, getConfiguration, getExpression, handleNullString, handleNullUnicodeString, handlePossiblyNullString, handlePossiblyNullUnicodeString, lazily
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Constructor Details
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SystemFunctionCallElaborator
public SystemFunctionCallElaborator()
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Method Details
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setExpression
Description copied from class:Elaborator
Set the expression being elaborated- Overrides:
setExpression
in classElaborator
- Parameters:
expr
- the expression
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elaborateForPull
Description copied from class:Elaborator
Get a function that evaluates the underlying expression in the form of aSequenceIterator
- Specified by:
elaborateForPull
in classPullElaborator
- Returns:
- an evaluator for the expression that returns a
SequenceIterator
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elaborateForItem
Description copied from class:Elaborator
Get a function that evaluates the underlying expression in the form of aItem
. This must only be called for expressions whose result has cardinality zero or one.- Overrides:
elaborateForItem
in classPullElaborator
- Returns:
- an evaluator for the expression that returns an
Item
, or null to represent an empty sequence.
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elaborateForPush
Description copied from class:Elaborator
Get a function that evaluates the underlying expression in push mode, by writing events to anOutputter
- Overrides:
elaborateForPush
in classPullElaborator
- Returns:
- an evaluator for the expression in push mode
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elaborateForUpdate
- Overrides:
elaborateForUpdate
in classElaborator
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