org.apache.lucene.index
Class RAMTransLog

java.lang.Object
  org.apache.lucene.index.RAMTransLog

All Implemented Interfaces:

TransLog, CompassConfigurable

public class RAMTransLog
extends Object
implements TransLog

A memory based transaction log. Fast, but long running transaciton or large transactions might not fit into memory.

Author:

kimchy

Constructor Summary

RAMTransLog()

Method Summary

void	close() Closes the transaction log.
void	configure(CompassSettings settings) Configure using the given settings.
Directory	getDirectory() Returns the Lucene directory the transaction log will be written to
void	onDocumentAdded() A callback notifiying the trasaction log that a document was added (can be used for flushing for example).
boolean	shouldUpdateTransSegments() Returns true if the transaction segments should be written for each change made to it.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RAMTransLog

public RAMTransLog()

Method Detail

configure

public void configure(CompassSettings settings)
               throws CompassException

Description copied from interface: CompassConfigurable

Configure using the given settings.

Specified by:

configure in interface CompassConfigurable

Parameters:

settings - The settings for the configured object

Throws:

CompassException

shouldUpdateTransSegments

public boolean shouldUpdateTransSegments()

Description copied from interface: TransLog

Returns true if the transaction segments should be written for each change made to it.

Specified by:

shouldUpdateTransSegments in interface TransLog

getDirectory

public Directory getDirectory()

Description copied from interface: TransLog

Returns the Lucene directory the transaction log will be written to

Specified by:

getDirectory in interface TransLog

onDocumentAdded

public void onDocumentAdded()

Description copied from interface: TransLog

A callback notifiying the trasaction log that a document was added (can be used for flushing for example).

Specified by:

onDocumentAdded in interface TransLog

close

public void close()

Description copied from interface: TransLog

Closes the transaction log.

Specified by:

close in interface TransLog