Package org.eclipse.persistence.transaction

Class JTATransactionController

java.lang.Object
org.eclipse.persistence.transaction.AbstractTransactionController
org.eclipse.persistence.transaction.JTATransactionController
All Implemented Interfaces:
ExternalTransactionController
Direct Known Subclasses:
GlassfishTransactionController, JBossTransactionController, JotmTransactionController, JTA11TransactionController, Oc4jTransactionController, SAPNetWeaverTransactionController, WebLogicTransactionController, WebSphereTransactionController
public class JTATransactionController extends AbstractTransactionController

Purpose: TransactionController implementation for JTA 1.0

Description: Implements the required behavior for controlling JTA 1.0 transactions. Specific JTA implementations may need to extend this class when special controller behavior is necessary.

The JTA TransactionManager must be obtained and set on the instance in order for a Synchronization listener to be registered against the transaction. This can be done either by extending this class and defining acquireTransactionManager() to return the manager for the server, or by using this class and explicitly calling the setTransactionManager() method on it after the fact. e.g. TransactionManager mgr = controller.jndiLookup("java:comp/TransactionManager"); controller.setTransactionManager(mgr);

If a different listener needs to be used for synchronization, the SynchronizationListenerFactory should be set on the controller instance. The listener subclass should implement the factory interface, so that setting the factory is simply a matter of assigning an instance of the listener. e.g. controller.setSynchronizationListenerFactory( new DifferentServerSynchronizationListener()); The default listener factory creates instances of JTATransactionListener.

See Also:

  • Field Details

    • defaultTransactionManager

      protected static jakarta.transaction.TransactionManager defaultTransactionManager

    • transactionManager

      protected jakarta.transaction.TransactionManager transactionManager

  • Constructor Details

    • JTATransactionController

      public JTATransactionController()
      PUBLIC: Return a new controller for use with a JTA 1.0 compliant TransactionManager.

    • JTATransactionController

      public JTATransactionController(jakarta.transaction.TransactionManager transactionManager)
      PUBLIC: Return a new controller for use with a JTA 1.0 compliant TransactionManager.

  • Method Details

    • registerSynchronization_impl

      protected void registerSynchronization_impl(AbstractSynchronizationListener listener, Object txn) throws Exception
      INTERNAL: Register the specified synchronization listener with the given active transaction.
      Specified by:
      registerSynchronization_impl in class AbstractTransactionController
      Parameters:
      listener - The synchronization listener created for this transaction
      txn - The active transaction for which notification is being requested
      Throws:
      Exception

    • getTransaction_impl

      protected Object getTransaction_impl() throws Exception
      INTERNAL: Return the active external transaction, or null if none is currently active for this thread.
      Specified by:
      getTransaction_impl in class AbstractTransactionController
      Returns:
      The active transaction object or id, or null if no transaction is active
      Throws:
      Exception

    • getTransactionKey_impl

      protected Object getTransactionKey_impl(Object transaction) throws Exception
      INTERNAL: Return a key for the specified external transaction object. The key is just something that can be inserted into a hashtable (must support hashCode() and equals() methods).
      Specified by:
      getTransactionKey_impl in class AbstractTransactionController
      Parameters:
      transaction - The transaction to which the returned key applies (may be null)
      Returns:
      A key for the passed in transaction, or null if no transaction specified
      Throws:
      Exception

    • getTransactionStatus_impl

      protected Object getTransactionStatus_impl() throws Exception
      INTERNAL: Return the transaction status as an object. We will pass around Integers that wrap the int JTA status values.
      Specified by:
      getTransactionStatus_impl in class AbstractTransactionController
      Returns:
      The current transaction status
      Throws:
      Exception

    • beginTransaction_impl

      protected void beginTransaction_impl() throws Exception
      INTERNAL: Begin an external transaction.
      Specified by:
      beginTransaction_impl in class AbstractTransactionController
      Throws:
      Exception

    • commitTransaction_impl

      protected void commitTransaction_impl() throws Exception
      INTERNAL: Commit the external transaction.
      Specified by:
      commitTransaction_impl in class AbstractTransactionController
      Throws:
      Exception

    • rollbackTransaction_impl

      protected void rollbackTransaction_impl() throws Exception
      INTERNAL: Roll back the external transaction.
      Specified by:
      rollbackTransaction_impl in class AbstractTransactionController
      Throws:
      Exception

    • markTransactionForRollback_impl

      protected void markTransactionForRollback_impl() throws Exception
      INTERNAL: Mark the external transaction for rollback.
      Specified by:
      markTransactionForRollback_impl in class AbstractTransactionController
      Throws:
      Exception

    • canBeginTransaction_impl

      protected boolean canBeginTransaction_impl(Object status)
      INTERNAL: Return true if the status indicates that a transaction can be started. This would normally mean that no transaction is currently active.
      Specified by:
      canBeginTransaction_impl in class AbstractTransactionController
      Parameters:
      status - The current transaction status
      Returns:
      true if the current state allows for a transaction to be started

    • canCommitTransaction_impl

      protected boolean canCommitTransaction_impl(Object status)
      INTERNAL: Return true if the status indicates that a transaction can be committed. This would normally mean that a transaction is currently active.
      Specified by:
      canCommitTransaction_impl in class AbstractTransactionController
      Parameters:
      status - The current transaction status
      Returns:
      true if the current state allows for a transaction to be committed

    • canRollbackTransaction_impl

      protected boolean canRollbackTransaction_impl(Object status)
      INTERNAL: Return true if the status indicates that a transaction can be rolled back. This would normally mean that a transaction is currently active.
      Specified by:
      canRollbackTransaction_impl in class AbstractTransactionController
      Parameters:
      status - The current transaction status
      Returns:
      true if the current state allows for a transaction to be rolled back

    • canIssueSQLToDatabase_impl

      protected boolean canIssueSQLToDatabase_impl(Object status)
      INTERNAL: Return true if the status indicates that the SQL should be issued to the db. This would normally mean that a transaction was active.
      Specified by:
      canIssueSQLToDatabase_impl in class AbstractTransactionController
      Parameters:
      status - The current transaction status
      Returns:
      true if the current state allows for the SQL to be sent to the database

    • canMergeUnitOfWork_impl

      protected boolean canMergeUnitOfWork_impl(Object status)
      INTERNAL: Return true if the status indicates that the unit of work should be merged into the shared cache. This would normally mean that the transaction was committed successfully.
      Specified by:
      canMergeUnitOfWork_impl in class AbstractTransactionController
      Parameters:
      status - The current transaction status
      Returns:
      true if the current state dictates that the unit of work should be merged

    • isRolledBack_impl

      public boolean isRolledBack_impl(Object status)
      INTERNAL: Return true if the transaction is rolled back.
      Specified by:
      isRolledBack_impl in class AbstractTransactionController

    • acquireTransactionManager

      protected jakarta.transaction.TransactionManager acquireTransactionManager() throws Exception
      INTERNAL: Obtain and return the JTA TransactionManager on this platform. By default try java:comp JNDI lookup. This method can be can be overridden by subclasses to obtain the transaction manager by whatever means is appropriate to the server. This method is invoked by the constructor to initialize the transaction manager at instance-creation time. Alternatively the transaction manager can be set directly on the controller instance using the setTransactionManager() method after the instance has been created.
      Returns:
      The TransactionManager for the transaction system
      Throws:
      Exception

    • getIntStatus

      protected int getIntStatus(Object status)
      INTERNAL: Convenience method to return the int value of the transaction status. Assumes that the status object is an Integer.

    • getTransactionManager

      public jakarta.transaction.TransactionManager getTransactionManager()
      PUBLIC: Return the transaction manager used to control the JTA transactions.
      Returns:
      The JTA TransactionManager that is used to obtain transaction state information and control the active transaction.

    • setTransactionManager

      public void setTransactionManager(jakarta.transaction.TransactionManager mgr)
      PUBLIC: Set the transaction manager used to control the JTA transactions.
      Parameters:
      mgr - A valid JTA TransactionManager that can be accessed by this controller to obtain transaction state information and control the active transaction.

    • statusToString_impl

      protected String statusToString_impl(Object status)
      Description copied from class: AbstractTransactionController
      INTERNAL: Convert the status to a string for tracing.
      Specified by:
      statusToString_impl in class AbstractTransactionController

    • getDefaultTransactionManager

      public static jakarta.transaction.TransactionManager getDefaultTransactionManager()

    • setDefaultTransactionManager

      public static void setDefaultTransactionManager(jakarta.transaction.TransactionManager defaultTransactionManager)
      PUBLIC: Set the JTA transaction manager to be used. This can be called directly before login to configure JTA integration manually, or using Spring injection.