jodd.db.jtx

Class DbJtxResourceManager

java.lang.Object

jodd.db.jtx.DbJtxResourceManager

All Implemented Interfaces:

JtxResourceManager<DbSession>

public class DbJtxResourceManager
extends java.lang.Object
implements JtxResourceManager<DbSession>

Database JtxResourceManager manages life-cycle of DbSession resources. Also acts as an adapter of resource object (of any type) and JTX engine.

Transaction resources may be of any type. The only thing what is important is that resource must be aware of its transactional state - is it in no-transactional mode (i.e. auto-commit), or under the transaction.

Field Summary

Fields

Modifier and Type	Field and Description
protected ConnectionProvider	connectionProvider

Constructor Summary

Constructors

Constructor and Description
DbJtxResourceManager(ConnectionProvider connectionProvider) Creates resource manager.

Method Summary

Modifier and Type	Method and Description
DbSession	beginTransaction(JtxTransactionMode jtxMode, boolean active) Creates new resource and begins new transaction if specified so by active flag, usually determined by propagation behavior.
void	close() Closes manager and free its resources.
void	commitTransaction(DbSession resource) Commits resource and closes it if committing was successful.
java.lang.Class<DbSession>	getResourceType() Returns associated resource type.
void	rollbackTransaction(DbSession resource) Rollback resource and closes it.

Methods inherited from class java.lang.Object

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

Field Detail

connectionProvider

protected final ConnectionProvider connectionProvider

Constructor Detail

DbJtxResourceManager

public DbJtxResourceManager(ConnectionProvider connectionProvider)

Creates resource manager.

Method Detail

getResourceType

public java.lang.Class<DbSession> getResourceType()

Returns associated resource type.

Specified by:

getResourceType in interface JtxResourceManager<DbSession>

beginTransaction

public DbSession beginTransaction(JtxTransactionMode jtxMode,
                                  boolean active)

Creates new resource and begins new transaction if specified so by active flag, usually determined by propagation behavior. Propagation behavior and timeout may be handled by the Jtx framework, leaving resource manager to handle isolation and read only flag.

Specified by:

beginTransaction in interface JtxResourceManager<DbSession>

commitTransaction

public void commitTransaction(DbSession resource)

Commits resource and closes it if committing was successful.

Specified by:

commitTransaction in interface JtxResourceManager<DbSession>

rollbackTransaction

public void rollbackTransaction(DbSession resource)

Rollback resource and closes it. Resource is closed no matter if rolling back fails.

Specified by:

rollbackTransaction in interface JtxResourceManager<DbSession>

close

public void close()

Closes manager and free its resources.

Specified by:

close in interface JtxResourceManager<DbSession>