org.lsst.ccs.localdb.statusdb

Class BatchPersister<T>

java.lang.Object

org.lsst.ccs.localdb.statusdb.BatchPersister<T>

All Implemented Interfaces:

Runnable, org.lsst.ccs.framework.AlertHandler, org.lsst.ccs.framework.ClearAlertHandler

Direct Known Subclasses:

MetaDataPersister, StatDataPersister, StatusDataPersister, StatusPersister

public abstract class BatchPersister<T>
extends Object
implements Runnable, org.lsst.ccs.framework.ClearAlertHandler

Persists entities as a batch.

Author:

LSST CCS Team

Nested Class Summary

Nested classes/interfaces inherited from interface org.lsst.ccs.framework.ClearAlertHandler

org.lsst.ccs.framework.ClearAlertHandler.ClearAlertCode

Field Summary

Fields

Modifier and Type	Field and Description
protected org.lsst.ccs.AlertService	alertService

Constructor Summary

Constructors

Constructor and Description
BatchPersister(int nMax, boolean flushAtCommit) Constructor for a batch persister.

Method Summary

Modifier and Type	Method and Description
void	addToQueue(T obj)
org.lsst.ccs.framework.ClearAlertHandler.ClearAlertCode	canClearAlert(org.lsst.ccs.bus.data.Alert alert)
abstract void	persist(T obj, org.hibernate.Session sess) Called from inside an open transaction.
void	run()

Methods inherited from class java.lang.Object

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

Field Detail

alertService

@LookupField(strategy=TREE)
protected org.lsst.ccs.AlertService alertService

Constructor Detail

BatchPersister

public BatchPersister(int nMax,
                      boolean flushAtCommit)

Constructor for a batch persister.

Parameters:

nMax - The maximum number of entities to persist in a single transaction.

flushAtCommit - true if the session that process the batch should be set to FlushMode.COMMIT

Method Detail

canClearAlert

public org.lsst.ccs.framework.ClearAlertHandler.ClearAlertCode canClearAlert(org.lsst.ccs.bus.data.Alert alert)

Specified by:

canClearAlert in interface org.lsst.ccs.framework.ClearAlertHandler

run

public void run()

Specified by:

run in interface Runnable

addToQueue

public void addToQueue(T obj)

persist

public abstract void persist(T obj,
                             org.hibernate.Session sess)

Called from inside an open transaction.

Parameters:

obj -

sess -