org.b3log.latke.repository.gae

Class GAETransaction

java.lang.Object

org.b3log.latke.repository.gae.GAETransaction

All Implemented Interfaces:

Transaction

public final class GAETransaction
extends Object
implements Transaction

Google App Engine datastore transaction. Just wraps Transaction simply.

Version:

1.0.0.9, Oct 14, 2013

Author:

Liang Ding

See Also:

GAERepository

Field Summary

Fields

Modifier and Type	Field and Description
private com.google.appengine.api.datastore.Transaction	appEngineDatastoreTx Underlying Google App Engine transaction.
static int	COMMIT_RETRIES Times of commit retries.
private static Logger	LOGGER Logger.

Constructor Summary

Constructors

Constructor and Description
GAETransaction(com.google.appengine.api.datastore.Transaction appEngineDatastoreTx) Constructs a GAETransaction object with the specified Google App Engine datastore transaction.

Method Summary

Methods

Modifier and Type	Method and Description
void	commit() Commits this transaction with 3 times of retries.
String	getId()
boolean	isActive()
void	rollback()

Methods inherited from class java.lang.Object

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

Field Detail

LOGGER

private static final Logger LOGGER

Logger.

appEngineDatastoreTx

private com.google.appengine.api.datastore.Transaction appEngineDatastoreTx

Underlying Google App Engine transaction.

COMMIT_RETRIES

public static final int COMMIT_RETRIES

Times of commit retries.

See Also:

Constant Field Values

Constructor Detail

GAETransaction

public GAETransaction(com.google.appengine.api.datastore.Transaction appEngineDatastoreTx)

Constructs a GAETransaction object with the specified Google App Engine datastore transaction.

Parameters:

appEngineDatastoreTx - the specified Google App Engine datastore transaction

Method Detail

getId

public String getId()

Specified by:

getId in interface Transaction

commit

public void commit()

Commits this transaction with 3 times of retries.

Throws:
ConcurrentModificationException - if commits failed

Specified by:

commit in interface Transaction

See Also:

COMMIT_RETRIES

rollback

public void rollback()

Specified by:

rollback in interface Transaction

isActive

public boolean isActive()

Specified by:

isActive in interface Transaction