gnu.lists
Interface PositionConsumer

All Known Implementing Classes:

Nodes, NodeTree, RelativeStepFilter, SortedNodes, TreeList, Values, ValueStack, XMLFilter, XMLPrinter

public interface PositionConsumer

An object that can be "fed" a TreePosition, and will do something with it. That "something" can be printing it, copy it, filter it - or ignore it.

Method Summary

void	consume(SeqPosition position) Consume node at current position.
void	writePosition(AbstractSequence seq, int ipos) Consume a single position pair.

Method Detail

consume

void consume(SeqPosition position)

Consume node at current position. The caller may invalidate or change the position after consume returns, so if the consumer wants to save it, it needs to copy it.

writePosition

void writePosition(AbstractSequence seq,
                   int ipos)

Consume a single position pair. This PositionConsumer may assume the sequence does no reference management; i.e. that copyPos is trivial and releasePos is a no-op. If that is not the case, use consume(TreePosition) instead.