org.apache.cayenne.access

## Interface TransactionDelegate

-     public interface TransactionDelegate

  Defines callback methods for tracking and customizing Transactions execution.
  Since:
    1.1

- - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `didCommit(Transaction transaction)` Called after a Transaction commit.
    `void` | `didRollback(Transaction transaction)` Called after a Transaction is rolledback.
    `boolean` | `willAddConnection(Transaction transaction, Connection connection)` Called within a context of a Transaction when a new JDBC onnection is added to the the transaction.
    `boolean` | `willCommit(Transaction transaction)` Called within a context of a Transaction before the transaction is committed.
    `boolean` | `willMarkAsRollbackOnly(Transaction transaction)` Called within a context of a Transaction before transaction is marked as "rollback only", meaning that further commit is not possible.
    `boolean` | `willRollback(Transaction transaction)` Called within a context of a Transaction before the transaction is rolledback.

- - ### Method Detail

    - #### willCommit

          boolean willCommit(Transaction transaction)

      Called within a context of a Transaction before the transaction is committed. Delegate can do its own processing, and optionally suppress further commit processing by Cayenne by returning `false`.

    - #### willMarkAsRollbackOnly

          boolean willMarkAsRollbackOnly(Transaction transaction)

      Called within a context of a Transaction before transaction is marked as "rollback only", meaning that further commit is not possible. Delegate can do its own processing, and optionally suppress setting transaction status by returning `false`.

    - #### willRollback

          boolean willRollback(Transaction transaction)

      Called within a context of a Transaction before the transaction is rolledback. Delegate can do its own processing, and optionally suppress further rollback processing by Cayenne by returning `false`.

    - #### didCommit

          void didCommit(Transaction transaction)

      Called after a Transaction commit.

    - #### didRollback

          void didRollback(Transaction transaction)

      Called after a Transaction is rolledback.

    - #### willAddConnection

          boolean willAddConnection(Transaction transaction,
                                  Connection connection)

      Called within a context of a Transaction when a new JDBC onnection is added to the the transaction. Delegate can do its own processing, and optionally suppress connection registration with the transaction by returning `false`.

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