org.helidb.backend
Interface RecordMoveListener<K,V,P>

Type Parameters:

K - The type of keys in the database.

V - The type of values in the database.

P - The type of positions for records in the database.

public interface RecordMoveListener<K,V,P>

This is the interface of a listener for when a record is moved in a DatabaseBackend. A record may be moved for instance when another record is deleted or when the database backend is being defragmented.

Since:

1.0

Author:

Karl Gustafsson

In_jar:

helidb-core

Method Summary

void	notifyRecordMoved(DatabaseBackend<? extends K,? extends V,? extends P> sender, K key, P oldPos, P newPos) This callback is called whenever a record is moved in the database backend.

Method Detail

notifyRecordMoved

void notifyRecordMoved(DatabaseBackend<? extends K,? extends V,? extends P> sender,
                       K key,
                       P oldPos,
                       P newPos)

This callback is called whenever a record is moved in the database backend.

Parameters:

sender - The backend where the record is stored.

key - The record's key.

oldPos - The record's old position.

newPos - The record's new position.