Package org.apache.cayenne.tx

## Class DefaultTransactionManager

- java.lang.Object
- - org.apache.cayenne.tx.DefaultTransactionManager

- All Implemented Interfaces:
    `TransactionManager`

      public class DefaultTransactionManager
      extends Object
      implements TransactionManager

  Since:
    4.0

- - ### Nested Class Summary

    Nested Classes
    Modifier and Type | Class | Description
    --- | --- | ---
    `protected static class` | `DefaultTransactionManager.BaseTransactionHandler` |

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `DefaultTransactionManager​(TransactionFactory txFactory, JdbcEventLogger jdbcEventLogger)` |

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `protected DefaultTransactionManager.BaseTransactionHandler` | `getHandler​(TransactionDescriptor descriptor)` |
    `<T> T` | `performInTransaction​(TransactionalOperation<T> op)` | Starts a new transaction (or joins an existing one) calling `TransactionalOperation.perform()`, and then committing or rolling back the transaction.
    `<T> T` | `performInTransaction​(TransactionalOperation<T> op, TransactionDescriptor descriptor)` | Performs operation in a transaction which parameters described by descriptor.
    `<T> T` | `performInTransaction​(TransactionalOperation<T> op, TransactionListener callback)` | Starts a new transaction (or joins an existing one) calling `TransactionalOperation.perform()`, and then committing or rolling back the transaction.
    `<T> T` | `performInTransaction​(TransactionalOperation<T> op, TransactionListener callback, TransactionDescriptor descriptor)` | Performs operation in a transaction which parameters described by descriptor.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### DefaultTransactionManager

          public DefaultTransactionManager​(TransactionFactory txFactory,
                                           JdbcEventLogger jdbcEventLogger)

  - ### Method Detail

    - #### performInTransaction

          public <T> T performInTransaction​(TransactionalOperation<T> op)

      Description copied from interface: `TransactionManager`
      Starts a new transaction (or joins an existing one) calling `TransactionalOperation.perform()`, and then committing or rolling back the transaction.
      Specified by:
        `performInTransaction` in interface `TransactionManager`
      Type Parameters:
        `T` - returned value type
      Parameters:
        `op` - an operation to perform within the transaction.
      Returns:
        a value returned by the "op" operation.

    - #### performInTransaction

          public <T> T performInTransaction​(TransactionalOperation<T> op,
                                            TransactionListener callback)

      Description copied from interface: `TransactionManager`
      Starts a new transaction (or joins an existing one) calling `TransactionalOperation.perform()`, and then committing or rolling back the transaction. As transaction goes through stages, callback methods are invoked allowing the caller to customize transaction parameters.
      Specified by:
        `performInTransaction` in interface `TransactionManager`
      Type Parameters:
        `T` - returned value type
      Parameters:
        `op` - an operation to perform within the transaction.
        `callback` - a callback to notify as transaction progresses through stages.
      Returns:
        a value returned by the "op" operation.

    - #### performInTransaction

          public <T> T performInTransaction​(TransactionalOperation<T> op,
                                            TransactionDescriptor descriptor)

      Description copied from interface: `TransactionManager`
      Performs operation in a transaction which parameters described by descriptor.
      Specified by:
        `performInTransaction` in interface `TransactionManager`
      Type Parameters:
        `T` - result type
      Parameters:
        `op` - an operation to perform within the transaction.
        `descriptor` - transaction descriptor
      Returns:
        a value returned by the "op" operation.
      Since:
        4.1

    - #### performInTransaction

          public <T> T performInTransaction​(TransactionalOperation<T> op,
                                            TransactionListener callback,
                                            TransactionDescriptor descriptor)

      Description copied from interface: `TransactionManager`
      Performs operation in a transaction which parameters described by descriptor. As transaction goes through stages, callback methods are invoked allowing the caller to customize transaction parameters.
      Specified by:
        `performInTransaction` in interface `TransactionManager`
      Type Parameters:
        `T` - returned value type
      Parameters:
        `op` - an operation to perform within the transaction.
        `callback` - a callback to notify as transaction progresses through stages.
        `descriptor` - transaction descriptor
      Returns:
        a value returned by the "op" operation.
      Since:
        4.1

    - #### getHandler

          protected DefaultTransactionManager.BaseTransactionHandler getHandler​(TransactionDescriptor descriptor)