org.codehaus.activemq.store.jdbc
Class JDBCPersistenceAdapter

java.lang.Object
  extended byorg.codehaus.activemq.service.impl.PersistenceAdapterSupport
      extended byorg.codehaus.activemq.store.jdbc.JDBCPersistenceAdapter
All Implemented Interfaces:
PersistenceAdapter, Service

public class JDBCPersistenceAdapter
extends PersistenceAdapterSupport

A PersistenceAdapter implementation using JDBC for persistence storage.

Version:
$Revision: 1.8 $

Constructor Summary
JDBCPersistenceAdapter()
           
JDBCPersistenceAdapter(DataSource ds, WireFormat wireFormat)
           
 
Method Summary
 void beginTransaction()
          This method starts a transaction on the persistent storage - which is nothing to do with JMS or XA transactions - its purely a mechanism to perform multiple writes to a persistent store in 1 transaction as a performance optimisation.
 void commitTransaction()
          Commit a persistence transaction
 PreparedTransactionStore createPreparedTransactionStore()
          Factory method to create a new persistent prepared transaction store for XA recovery
 MessageStore createQueueMessageStore(String destinationName)
          Factory method to create a new queue message store with the given destination name
 TopicMessageStore createTopicMessageStore(String destinationName)
          Factory method to create a new topic message store with the given destination name
 Connection getConnection()
           
 DataSource getDataSource()
           
 Map getInitialDestinations()
          Returns a map, indexed by String name, of all the Destination objects active on startup.
 WireFormat getWireFormat()
           
 void returnConnection(Connection connection)
           
 void rollbackTransaction()
          Rollback a persistence transaction
 void setDataSource(DataSource dataSource)
           
 void setWireFormat(WireFormat wireFormat)
           
 void start()
          Called to start the service
 void stop()
          Called to shutdown the service
 
Methods inherited from class org.codehaus.activemq.service.impl.PersistenceAdapterSupport
createQueueMessageContainer, createTopicMessageContainer
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

JDBCPersistenceAdapter

public JDBCPersistenceAdapter()

JDBCPersistenceAdapter

public JDBCPersistenceAdapter(DataSource ds,
                              WireFormat wireFormat)
Method Detail

getInitialDestinations

public Map getInitialDestinations()
Description copied from interface: PersistenceAdapter
Returns a map, indexed by String name, of all the Destination objects active on startup.

Returns:

createQueueMessageStore

public MessageStore createQueueMessageStore(String destinationName)
                                     throws JMSException
Description copied from interface: PersistenceAdapter
Factory method to create a new queue message store with the given destination name

Throws:
JMSException

createTopicMessageStore

public TopicMessageStore createTopicMessageStore(String destinationName)
                                          throws JMSException
Description copied from interface: PersistenceAdapter
Factory method to create a new topic message store with the given destination name

Throws:
JMSException

createPreparedTransactionStore

public PreparedTransactionStore createPreparedTransactionStore()
                                                        throws JMSException
Description copied from interface: PersistenceAdapter
Factory method to create a new persistent prepared transaction store for XA recovery

Throws:
JMSException

beginTransaction

public void beginTransaction()
                      throws JMSException
Description copied from interface: PersistenceAdapter
This method starts a transaction on the persistent storage - which is nothing to do with JMS or XA transactions - its purely a mechanism to perform multiple writes to a persistent store in 1 transaction as a performance optimisation.

Typically one transaction will require one disk synchronization point and so for real high performance its usually faster to perform many writes within the same transaction to minimise latency caused by disk synchronization. This is especially true when using tools like Berkeley Db or embedded JDBC servers.

Throws:
JMSException

commitTransaction

public void commitTransaction()
                       throws JMSException
Description copied from interface: PersistenceAdapter
Commit a persistence transaction

Throws:
JMSException
See Also:
PersistenceAdapter.beginTransaction()

rollbackTransaction

public void rollbackTransaction()
Description copied from interface: PersistenceAdapter
Rollback a persistence transaction

See Also:
PersistenceAdapter.beginTransaction()

start

public void start()
           throws JMSException
Description copied from interface: Service
Called to start the service

Throws:
JMSException

stop

public void stop()
          throws JMSException
Description copied from interface: Service
Called to shutdown the service

Throws:
JMSException

getDataSource

public DataSource getDataSource()

setDataSource

public void setDataSource(DataSource dataSource)

getWireFormat

public WireFormat getWireFormat()

setWireFormat

public void setWireFormat(WireFormat wireFormat)

getConnection

public Connection getConnection()
                         throws SQLException
Throws:
SQLException

returnConnection

public void returnConnection(Connection connection)


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