[[transaction-application-server-integration]]
= Application server-specific integration

Spring's transaction abstraction is generally application server-agnostic. Additionally,
Spring's `JtaTransactionManager` class (which can optionally perform a JNDI lookup for
the JTA `UserTransaction` and `TransactionManager` objects) autodetects the location for
the latter object, which varies by application server. Having access to the JTA
`TransactionManager` allows for enhanced transaction semantics -- in particular,
supporting transaction suspension. See the
{api-spring-framework}/transaction/jta/JtaTransactionManager.html[`JtaTransactionManager`]
javadoc for details.

Spring's `JtaTransactionManager` is the standard choice to run on Jakarta EE application
servers and is known to work on all common servers. Advanced functionality, such as
transaction suspension, works on many servers as well (including GlassFish, JBoss and
Geronimo) without any special configuration required. However, for fully supported
transaction suspension and further advanced integration, Spring includes special adapters
for WebLogic Server and WebSphere. These adapters are discussed in the following
sections.

For standard scenarios, including WebLogic Server and WebSphere, consider using the
convenient `<tx:jta-transaction-manager/>` configuration element. When configured,
this element automatically detects the underlying server and chooses the best
transaction manager available for the platform. This means that you need not explicitly
configure server-specific adapter classes (as discussed in the following sections).
Rather, they are chosen automatically, with the standard
`JtaTransactionManager` as the default fallback.


[[transaction-application-server-integration-websphere]]
== IBM WebSphere

On WebSphere 6.1.0.9 and above, the recommended Spring JTA transaction manager to use is
`WebSphereUowTransactionManager`. This special adapter uses IBM's `UOWManager` API,
which is available in WebSphere Application Server 6.1.0.9 and later. With this adapter,
Spring-driven transaction suspension (suspend and resume as initiated by
`PROPAGATION_REQUIRES_NEW`) is officially supported by IBM.


[[transaction-application-server-integration-weblogic]]
== Oracle WebLogic Server

On WebLogic Server 9.0 or above, you would typically use the
`WebLogicJtaTransactionManager` instead of the stock `JtaTransactionManager` class. This
special WebLogic-specific subclass of the normal `JtaTransactionManager` supports the
full power of Spring's transaction definitions in a WebLogic-managed transaction
environment, beyond standard JTA semantics. Features include transaction names,
per-transaction isolation levels, and proper resuming of transactions in all cases.