Class IndexedVariableEvaluator

java.lang.Object
net.sf.saxon.expr.elab.IndexedVariableEvaluator
All Implemented Interfaces:
SequenceEvaluator

public class IndexedVariableEvaluator extends Object implements SequenceEvaluator
Evaluator for a variable that needs to be indexed, because the optimizer has identified that it will contain a sequence that is accessed using predicates based on the content Note, indexing is only used in Saxon-EE; the implementation in Saxon-HE is a dummy.
  • Constructor Details

    • IndexedVariableEvaluator

      public IndexedVariableEvaluator(PullEvaluator select)
  • Method Details

    • evaluate

      public Sequence evaluate(XPathContext context) throws XPathException
      Evaluate a construct to produce a value (which might be a lazily evaluated Sequence)
      Specified by:
      evaluate in interface SequenceEvaluator
      Parameters:
      context - the evaluation context
      Returns:
      a Sequence (not necessarily grounded)
      Throws:
      XPathException - if a dynamic error occurs during the evaluation.