com.whitestein.lsps.vaadin.util

Class TransactionAccessorImpl

java.lang.Object

com.whitestein.lsps.vaadin.util.TransactionAccessorImpl

All Implemented Interfaces:

TransactionAccessor

public class TransactionAccessorImpl
extends Object
implements TransactionAccessor

Default implementation of TransactionAccessor. If an application does not use VaadinServletWithTransaction (or its subclass), it should make sure that DB transactions are committed or rolled back at the end of each HTTP request. If a custom TransactionAccessor is not necessary, applications can use TransactionAccessorImpl. The custom application servlet should call TransactionAccessorImpl.reset() at the beginning of each request and TransactionAccessorImpl.instance().closeTransaction() at the end of each request.

Author:

mhi

Method Summary

Modifier and Type	Method and Description
void	checkTransactionRunning() Checks that the transaction is running.
void	closeTransaction() Closes the current transaction.
UserTransaction	getUserTransaction() Returns the current transaction.
static TransactionAccessor	instance(SharedRecordNotifier sharedRecordNotifier) Deprecated. do not use directly - look up the transaction manager via LspsAppConnector.getTransactionAccessor() instead.
boolean	isTransactionRunning() Returns true if a transaction is running.
static void	reset() Reset state.
void	startTransaction() Starts a transaction, if there is none yet.

Methods inherited from class java.lang.Object

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

Method Detail

instance

@Deprecated
public static TransactionAccessor instance(SharedRecordNotifier sharedRecordNotifier)

Deprecated. do not use directly - look up the transaction manager via LspsAppConnector.getTransactionAccessor() instead.

Parameters:

sharedRecordNotifier -

Returns:

singleton instance

reset

public static void reset()

Reset state.

getUserTransaction

public UserTransaction getUserTransaction()

Description copied from interface: TransactionAccessor

Returns the current transaction.

Specified by:

getUserTransaction in interface TransactionAccessor

Returns:

transaction

startTransaction

public void startTransaction()

Description copied from interface: TransactionAccessor

Starts a transaction, if there is none yet.

Specified by:

startTransaction in interface TransactionAccessor

closeTransaction

public void closeTransaction()

Description copied from interface: TransactionAccessor

Closes the current transaction. If the transaction is marked for rollback, it's rolled back, otherwise the transaction is committed if present.

Specified by:

closeTransaction in interface TransactionAccessor

isTransactionRunning

public boolean isTransactionRunning()

Description copied from interface: TransactionAccessor

Returns true if a transaction is running.

Specified by:

isTransactionRunning in interface TransactionAccessor

Returns:

true if a transaction is running, false if not.

checkTransactionRunning

public void checkTransactionRunning()

Description copied from interface: TransactionAccessor

Checks that the transaction is running.

Specified by:

checkTransactionRunning in interface TransactionAccessor