org.alfresco.repo.transaction

Class DummyTransactionService

java.lang.Object

org.alfresco.repo.transaction.DummyTransactionService

All Implemented Interfaces:

TransactionService

public class DummyTransactionService
extends Object
implements TransactionService

Simple implementation of the transaction service that serve up entirely useless user transactions. It is useful within the context of some tests.

Author:

Derek Hulley

Constructor Summary

Constructors

Constructor and Description
DummyTransactionService()

Method Summary

Modifier and Type	Method and Description
boolean	getAllowWrite() Determine if the repository has been put into read only mode.
UserTransaction	getNonPropagatingUserTransaction() Gets a user transaction that ensures a new transaction is created.
UserTransaction	getNonPropagatingUserTransaction(boolean readOnly) Gets a user transaction that ensures a new transaction is created.
UserTransaction	getNonPropagatingUserTransaction(boolean readOnly, boolean ignoreSystemReadOnly) Gets a user transaction that ensures a new transaction is created.
RetryingTransactionHelper	getRetryingTransactionHelper() Get the standard instance of the helper object that supports transaction retrying.
UserTransaction	getUserTransaction() Gets a user transaction that supports transaction propagation.
UserTransaction	getUserTransaction(boolean readOnly) Gets a user transaction that supports transaction propagation.
UserTransaction	getUserTransaction(boolean readOnly, boolean ignoreSystemReadOnly) Gets a user transaction that supports transaction propagation.
boolean	isReadOnly() Determine if ALL user transactions will be read-only.

Methods inherited from class java.lang.Object

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

Constructor Detail

DummyTransactionService

public DummyTransactionService()

Method Detail

getAllowWrite

public boolean getAllowWrite()

Description copied from interface: TransactionService

Determine if the repository has been put into read only mode. This is independent of the current user.

Specified by:

getAllowWrite in interface TransactionService

Returns:

true if the repository is allowed to perform write operations

isReadOnly

public boolean isReadOnly()

Description copied from interface: TransactionService

Determine if ALL user transactions will be read-only. The 'System' user is always allowed to write.

Specified by:

isReadOnly in interface TransactionService

Returns:

Returns true if all transactions are read-only AND the current user is not the 'System' user.

getUserTransaction

public UserTransaction getUserTransaction()

Description copied from interface: TransactionService

Gets a user transaction that supports transaction propagation. This is like the EJB REQUIRED transaction attribute.

Specified by:

getUserTransaction in interface TransactionService

Returns:

the user transaction

getUserTransaction

public UserTransaction getUserTransaction(boolean readOnly)

Description copied from interface: TransactionService

Gets a user transaction that supports transaction propagation. This is like the EJB REQUIRED transaction attribute.

Specified by:

getUserTransaction in interface TransactionService

Parameters:

readOnly - Set true for a READONLY transaction instance, false otherwise. Note that it is not always possible to force a write transaction if the system is in read-only mode.

Returns:

the user transaction

getUserTransaction

public UserTransaction getUserTransaction(boolean readOnly,
                                          boolean ignoreSystemReadOnly)

Description copied from interface: TransactionService

Gets a user transaction that supports transaction propagation. This is like the EJB REQUIRED transaction attribute.

Specified by:

getUserTransaction in interface TransactionService

Parameters:

readOnly - Set true for a READONLY transaction instance, false otherwise.

ignoreSystemReadOnly - true to force the read-only flag to be respected regardless of the system read-only mode.

Returns:

the user transaction

getNonPropagatingUserTransaction

public UserTransaction getNonPropagatingUserTransaction()

Description copied from interface: TransactionService

Gets a user transaction that ensures a new transaction is created. Any enclosing transaction is not propagated. This is like the EJB REQUIRES_NEW transaction attribute - when the transaction is started, the current transaction will be suspended and a new one started.

Specified by:

getNonPropagatingUserTransaction in interface TransactionService

Returns:

Returns a non-propagating user transaction

getNonPropagatingUserTransaction

public UserTransaction getNonPropagatingUserTransaction(boolean readOnly)

Description copied from interface: TransactionService

Gets a user transaction that ensures a new transaction is created. Any enclosing transaction is not propagated. This is like the EJB REQUIRES_NEW transaction attribute - when the transaction is started, the current transaction will be suspended and a new one started.

Specified by:

getNonPropagatingUserTransaction in interface TransactionService

Parameters:

readOnly - Set true for a READONLY transaction instance, false otherwise. Note that it is not always possible to force a write transaction if the system is in read-only mode.

Returns:

Returns a non-propagating user transaction

getNonPropagatingUserTransaction

public UserTransaction getNonPropagatingUserTransaction(boolean readOnly,
                                                        boolean ignoreSystemReadOnly)

Description copied from interface: TransactionService

Gets a user transaction that ensures a new transaction is created. Any enclosing transaction is not propagated. This is like the EJB REQUIRES_NEW transaction attribute - when the transaction is started, the current transaction will be suspended and a new one started.

Specified by:

getNonPropagatingUserTransaction in interface TransactionService

Parameters:

readOnly - Set true for a READONLY transaction instance, false otherwise.

ignoreSystemReadOnly - true to force the read-only flag to be respected regardless of the system read-only mode.

Returns:

Returns a non-propagating user transaction

getRetryingTransactionHelper

public RetryingTransactionHelper getRetryingTransactionHelper()

Description copied from interface: TransactionService

Get the standard instance of the helper object that supports transaction retrying.

Specified by:

getRetryingTransactionHelper in interface TransactionService

Returns:

Returns a helper object that executes units of work transactionally. The helper can be reused or altered as required.