Class LastItemExpression.LastItemExprElaborator

java.lang.Object
net.sf.saxon.expr.elab.Elaborator
net.sf.saxon.expr.elab.ItemElaborator
net.sf.saxon.expr.LastItemExpression.LastItemExprElaborator
Enclosing class:
LastItemExpression

public static class LastItemExpression.LastItemExprElaborator extends ItemElaborator
Elaborator for a "last item expression" (typically SEQ[last()])
  • Constructor Details

    • LastItemExprElaborator

      public LastItemExprElaborator()
  • Method Details

    • 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.
      Specified by:
      elaborateForItem in class ItemElaborator
      Returns:
      an evaluator for the expression that returns an Item, or null to represent an empty sequence.