Package net.sf.saxon.expr

Class IdentityComparison.IdentityComparisonElaborator

java.lang.Object
net.sf.saxon.expr.elab.Elaborator
net.sf.saxon.expr.elab.ItemElaborator
net.sf.saxon.expr.IdentityComparison.IdentityComparisonElaborator
Enclosing class:
IdentityComparison
public static class IdentityComparison.IdentityComparisonElaborator extends ItemElaborator
Elaborator for an identity comparison (operators is, <<, and >> )

  • Constructor Details

    • IdentityComparisonElaborator

      public IdentityComparisonElaborator()

  • Method Details

    • elaborateForBoolean

      public BooleanEvaluator elaborateForBoolean()
      Description copied from class: Elaborator
      Get a function that evaluates the underlying expression in the form of a boolean, this being the effective boolean value of the expression.
      Overrides:
      elaborateForBoolean in class ItemElaborator
      Returns:
      an evaluator for the expression that returns a boolean.

    • 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.