org.hornetq.core.persistence.impl.journal

Class BatchingIDGenerator

java.lang.Object

org.hornetq.core.persistence.impl.journal.BatchingIDGenerator

All Implemented Interfaces:

IDGenerator

public final class BatchingIDGenerator
extends Object
implements IDGenerator

An ID generator that allocates a batch of IDs of size checkpointSize and records the ID in the journal only when starting a new batch.

Author:

Clebert Suconic, Tim Fox

See Also:

IDGenerator

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	BatchingIDGenerator.IDCounterEncoding

Constructor Summary

Constructors

Constructor and Description
BatchingIDGenerator(long start, long checkpointSize, StorageManager storageManager)

Method Summary

Methods

Modifier and Type	Method and Description
static EncodingSupport	createIDEncodingSupport(long id)
long	generateID()
long	getCurrentID()
void	loadState(long journalID, HornetQBuffer buffer)
void	persistCurrentID()

Methods inherited from class java.lang.Object

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

Constructor Detail

BatchingIDGenerator

public BatchingIDGenerator(long start,
                   long checkpointSize,
                   StorageManager storageManager)

Method Detail

persistCurrentID

public void persistCurrentID()

loadState

public void loadState(long journalID,
             HornetQBuffer buffer)

generateID

public long generateID()

Specified by:

generateID in interface IDGenerator

getCurrentID

public long getCurrentID()

Specified by:

getCurrentID in interface IDGenerator

createIDEncodingSupport

public static EncodingSupport createIDEncodingSupport(long id)