ComplexNodePushElaborator

java.lang.Object
- net.sf.saxon.expr.elab.Elaborator
- - net.sf.saxon.expr.elab.FallbackElaborator
  - - net.sf.saxon.expr.elab.ComplexNodePushElaborator

Direct Known Subclasses:

ComputedElement.ComputedElementElaborator, FixedElement.FixedElementElaborator
```
public abstract class ComplexNodePushElaborator
extends FallbackElaborator
```
Elaborator for element construction expressions (both fixed and computed). This class provides pull and single-item evaluation of these instructions; these invoke the corresponding push evaluator which must be implemented in a subclass.

Constructor Summary

Constructors
Constructor Description

ComplexNodePushElaborator()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`ItemEvaluator`	`elaborateForItem()`	Get a function that evaluates the underlying expression in the form of a `Item`.
`PullEvaluator`	`elaborateForPull()`	Get a function that evaluates the underlying expression in the form of a `SequenceIterator`
`PushEvaluator`	`elaborateForPush()`	Get a function that evaluates the underlying expression in push mode, by writing events to an `Outputter`

Methods inherited from class net.sf.saxon.expr.elab.FallbackElaborator
eagerly, elaborateForBoolean, elaborateForUnicodeString, lazily

Methods inherited from class net.sf.saxon.expr.elab.Elaborator
elaborateForString, elaborateForUpdate, getConfiguration, getExpression, handleNullString, handleNullUnicodeString, handlePossiblyNullString, handlePossiblyNullUnicodeString, setExpression

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ComplexNodePushElaborator
```
public ComplexNodePushElaborator()
```
- 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
    
    Overrides:
    
    elaborateForPull in class FallbackElaborator
    
    Returns:
    
    an evaluator for the expression that returns a SequenceIterator
  - elaborateForItem
```
public ItemEvaluator elaborateForItem()
```
    Description copied from class: Elaborator
    
    Get a function that evaluates the underlying expression in the form of a Item. This must only be called for expressions whose result has cardinality zero or one.
    
    Overrides:
    
    elaborateForItem in class FallbackElaborator
    
    Returns:
    
    an evaluator for the expression that returns an Item, or null to represent an empty sequence.
  - elaborateForPush
```
public PushEvaluator elaborateForPush()
```
    Description copied from class: Elaborator
    
    Get a function that evaluates the underlying expression in push mode, by writing events to an Outputter
    
    Overrides:
    
    elaborateForPush in class FallbackElaborator
    
    Returns:
    
    an evaluator for the expression in push mode