Class FilterExpression.FilterExprElaborator.PositionalFilteredIterator

  • All Implemented Interfaces:, java.lang.AutoCloseable, SequenceIterator
    Enclosing class:

    public static class FilterExpression.FilterExprElaborator.PositionalFilteredIterator
    extends java.lang.Object
    implements SequenceIterator
    An iterator for a filter expression in which the predicate is capable of evaluating as a number (in which case it needs to be compared with the context position, rather than being converted to a boolean)
    • Constructor Detail

      • PositionalFilteredIterator

        public PositionalFilteredIterator​(XPathContext outerContext,
                                          PullEvaluator condition)
        Construct a AxisFilter
        outerContext - the underlying iterator that returns all the nodes on a required axis.
        condition - a test that is applied to each node returned by the underlying SequenceIterator; only those items that pass the NodeTest are returned by the filter
    • Method Detail

      • next

        public Item next()
        Description copied from interface: SequenceIterator
        Get the next item in the sequence. This method changes the state of the iterator.
        Specified by:
        next in interface SequenceIterator
        the next item, or null if there are no more items. Once a call on next() has returned null, no further calls should be made. The preferred action for an iterator if subsequent calls on next() are made is to return null again, and all implementations within Saxon follow this rule.