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Distributed Transactions With JTA
Spring Boot supports distributed JTA transactions across multiple XA resources by using a transaction manager retrieved from JNDI.
When a JTA environment is detected, Spring’s JtaTransactionManager
is used to manage transactions.
Auto-configured JMS, DataSource, and JPA beans are upgraded to support XA transactions.
You can use standard Spring idioms, such as @Transactional
, to participate in a distributed transaction.
If you are within a JTA environment and still want to use local transactions, you can set the spring.jta.enabled
property to false
to disable the JTA auto-configuration.
Using a Jakarta EE Managed Transaction Manager
If you package your Spring Boot application as a war
or ear
file and deploy it to a Jakarta EE application server, you can use your application server’s built-in transaction manager.
Spring Boot tries to auto-configure a transaction manager by looking at common JNDI locations (java:comp/UserTransaction
, java:comp/TransactionManager
, and so on).
When using a transaction service provided by your application server, you generally also want to ensure that all resources are managed by the server and exposed over JNDI.
Spring Boot tries to auto-configure JMS by looking for a ConnectionFactory
at the JNDI path (java:/JmsXA
or java:/XAConnectionFactory
), and you can use the spring.datasource.jndi-name
property to configure your DataSource
.
Mixing XA and Non-XA JMS Connections
When using JTA, the primary JMS ConnectionFactory
bean is XA-aware and participates in distributed transactions.
You can inject into your bean without needing to use any @Qualifier
:
-
Java
-
Kotlin
import jakarta.jms.ConnectionFactory;
public class MyBean {
public MyBean(ConnectionFactory connectionFactory) {
// ...
}
}
import jakarta.jms.ConnectionFactory
class MyBean(connectionFactory: ConnectionFactory?)
In some situations, you might want to process certain JMS messages by using a non-XA ConnectionFactory
.
For example, your JMS processing logic might take longer than the XA timeout.
If you want to use a non-XA ConnectionFactory
, you can the nonXaJmsConnectionFactory
bean:
-
Java
-
Kotlin
import jakarta.jms.ConnectionFactory;
import org.springframework.beans.factory.annotation.Qualifier;
public class MyBean {
public MyBean(@Qualifier("nonXaJmsConnectionFactory") ConnectionFactory connectionFactory) {
// ...
}
}
import jakarta.jms.ConnectionFactory
import org.springframework.beans.factory.annotation.Qualifier
class MyBean(@Qualifier("nonXaJmsConnectionFactory") connectionFactory: ConnectionFactory?)
For consistency, the jmsConnectionFactory
bean is also provided by using the bean alias xaJmsConnectionFactory
:
-
Java
-
Kotlin
import jakarta.jms.ConnectionFactory;
import org.springframework.beans.factory.annotation.Qualifier;
public class MyBean {
public MyBean(@Qualifier("xaJmsConnectionFactory") ConnectionFactory connectionFactory) {
// ...
}
}
import jakarta.jms.ConnectionFactory
import org.springframework.beans.factory.annotation.Qualifier
class MyBean(@Qualifier("xaJmsConnectionFactory") connectionFactory: ConnectionFactory?)
Supporting an Embedded Transaction Manager
The XAConnectionFactoryWrapper
and XADataSourceWrapper
interfaces can be used to support embedded transaction managers.
The interfaces are responsible for wrapping XAConnectionFactory
and XADataSource
beans and exposing them as regular ConnectionFactory
and DataSource
beans, which transparently enroll in the distributed transaction.
DataSource and JMS auto-configuration use JTA variants, provided you have a JtaTransactionManager
bean and appropriate XA wrapper beans registered within your ApplicationContext
.