org.eclipse.viatra.query.runtime.rete.index

Interface IndexerListener

All Known Implementing Classes:

DefaultIndexerListener

public interface IndexerListener

A listener for update events concerning an Indexer.

Method Summary

Modifier and Type	Method and Description
Node	getOwner()
void	notifyIndexerUpdate(Direction direction, Tuple updateElement, Tuple signature, boolean change) Notifies recipient that the indexer has just received an update.

Method Detail

notifyIndexerUpdate

void notifyIndexerUpdate(Direction direction,
                         Tuple updateElement,
                         Tuple signature,
                         boolean change)

Notifies recipient that the indexer has just received an update. Contract: indexer already reflects the updated state.

Parameters:

direction - the direction of the update.

updateElement - the tuple that was updated.

signature - the signature of the tuple according to the indexer's mask.

change - whether this was the first inserted / last revoked update element with this particular signature.

getOwner

Node getOwner()