What is new in BTM version 1.3

BTM underwent many changes for version 1.3. Here is a short summary of what's new and noteworthy.

Contents

New Features

JNDI provider

• The new JNDI provider and the new jndiUserTransactionName config property.

Journal

• The new Null journal and the related journal config property.

Recoverer

• Incremental recovery.

Resource loader

• The bitronix.tm.resource.bind property is now useless and has been removed.
• Resource creation failures don't block the transaction manager startup anymore and can be retried in the background witht he new retryUnrecoverableResourcesRegistrationInterval config property.

Transaction manager

• No shutdown hook is registered anymore.
• Handling of unilateral resources rollback.
• Transaction termination can be directly controlled, no more need to use the TransactionManager interface.
• Per-resource timeout.
• Transactions are now marked as rollback only when a timeout happens.
• The new resources ordering algorithm and the new twoPcOrderingPosition resource bean property.
• The removal of the bitronix.tm.timer.transactionRetryInterval config property.

Misc

• JMX can be disabled with the new disableJmx config property.

Integration

Tomcat 5.5

• A new class that plugs into Tomcat to maintain BTM's lifecycle (ie: startup / shutdown): btm-tomcat55-lifecycle.jar. Copy the jar to the $TOMCAT_HOME/server/lib folder then edit $TOMCAT_HOME/conf/server.xml and add this below the other lifecycle listeners: <Listener className="my.package.BTMLifecycleListener" />

Jetty 6

• A new class that plugs into Jetty to maintain BTM's lifecycle (ie: startup / shutdown): btm-jetty6-lifecycle.jar. Register it in your jetty.xml with a <Call name="addLifeCycle"> tag.

Upgrading from version 1.2

Checklist

• Old resource creation mechanism (ResourceBean.createResource()) has been removed.
• Get rid of the bitronix.tm.resource.bind property in the resource loader's config file if present.
• Get rid of the bitronix.tm.timer.transactionRetryInterval config property if set.
• Make sure you manually shutdown the transaction manager.
• CryptoEngine moved to bitronix.tm.utils package.