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3.5.3. The Transaction Manager
3.5.3.1. About JTA Transaction Manager Lookup Classes
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In order to execute a cache operation, the cache requires a reference to the environment's Transaction Manager. Configure the cache with the class name that belongs to an implementation of the
TransactionManagerLookup interface. When initialized, the cache creates an instance of the specified class and invokes its getTransactionManager() method to locate and return a reference to the Transaction Manager.
JBoss Data Grid includes the following transaction manager lookup classes:
- The
DummyTransactionManagerLookupprovides a transaction manager for testing purposes. This testing transaction manager is not for use in a production environment and is severely limited in terms of functionality, specifically for concurrent transactions and recovery. - The
JBossStandaloneJTAManagerLookupis the default transaction manager when JBoss Data Grid runs in a standalone environment. It is a fully functional JBoss Transactions based transaction manager that overcomes the functionality limits of theDummyTransactionManagerLookup. - The
GenericTransactionManagaerLookupis a lookup class used to locate transaction managers in most Java EE application servers. If no transaction manager is located, it defaults toDummyTransactionManagerLookup. - The
JBossTransactionManagerLookupis a lookup class that locates a transaction manager within a JBoss Application Server instance.
Note
In Remote Client-Server mode, all JBoss Data Grid operations are non transactional. As a result, the listed JTA Transaction Manager Lookup classes can only be used in JBoss Data Grid's Library Mode.
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