Class BlockEventIterator

java.lang.Object
net.sf.saxon.evpull.BlockEventIterator
All Implemented Interfaces:
EventIterator, PullEvent

public class BlockEventIterator extends Object implements EventIterator
Iterate over the instructions in a Block, concatenating the result of each instruction into a single combined sequence.
  • Constructor Details

    • BlockEventIterator

      public BlockEventIterator(Expression[] children, XPathContext context)
      Create an EventIterator over the results of evaluating a Block
      Parameters:
      children - the sequence of instructions comprising the Block
      context - the XPath dynamic context
  • Method Details

    • next

      public PullEvent next() throws XPathException
      Get the next item in the sequence.
      Specified by:
      next in interface EventIterator
      Returns:
      the next item, or null if there are no more items.
      Throws:
      XPathException - if an error occurs retrieving the next item
    • isFlatSequence

      public boolean isFlatSequence()
      Determine whether the EventIterator returns a flat sequence of events, or whether it can return nested event iterators
      Specified by:
      isFlatSequence in interface EventIterator
      Returns:
      true if the next() method is guaranteed never to return an EventIterator