org.springframework.jca.cci.core.support

## Class CciDaoSupport

- java.lang.Object
- - org.springframework.dao.support.DaoSupport
  - - org.springframework.jca.cci.core.support.CciDaoSupport

- All Implemented Interfaces:
    InitializingBean

      public abstract class CciDaoSupport
      extends DaoSupport

  Convenient super class for CCI-based data access objects.

  Requires a `ConnectionFactory` to be set, providing a `CciTemplate` based on it to subclasses through the `getCciTemplate()` method.

  This base class is mainly intended for CciTemplate usage but can also be used when working with a Connection directly or when using `org.springframework.jca.cci.object` classes.

  Since:
    1.2
  Author:
    Thierry Templier, Juergen Hoeller
  See Also:
    `setConnectionFactory(javax.resource.cci.ConnectionFactory)`, `getCciTemplate()`, `CciTemplate`

- - ### Field Summary

    - ### Fields inherited from class org.springframework.dao.support.DaoSupport

      `logger`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `CciDaoSupport()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `protected void` | `checkDaoConfig()` Abstract subclasses must override this to check their configuration.
    `protected CciTemplate` | `createCciTemplate(ConnectionFactory connectionFactory)` Create a CciTemplate for the given ConnectionFactory.
    `CciTemplate` | `getCciTemplate()` Return the CciTemplate for this DAO, pre-initialized with the ConnectionFactory or set explicitly.
    `protected CciTemplate` | `getCciTemplate(ConnectionSpec connectionSpec)` Obtain a CciTemplate derived from the main template instance, inheriting the ConnectionFactory and other settings but overriding the ConnectionSpec used for obtaining Connections.
    `protected Connection` | `getConnection()` Get a CCI Connection, either from the current transaction or a new one.
    `ConnectionFactory` | `getConnectionFactory()` Return the ConnectionFactory used by this DAO.
    `protected void` | `releaseConnection(Connection con)` Close the given CCI Connection, created via this bean's ConnectionFactory, if it isn't bound to the thread.
    `void` | `setCciTemplate(CciTemplate cciTemplate)` Set the CciTemplate for this DAO explicitly, as an alternative to specifying a ConnectionFactory.
    `void` | `setConnectionFactory(ConnectionFactory connectionFactory)` Set the ConnectionFactory to be used by this DAO.

    - ### Methods inherited from class org.springframework.dao.support.DaoSupport

      `afterPropertiesSet, initDao`

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

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

- - ### Constructor Detail

    - #### CciDaoSupport

          public CciDaoSupport()

  - ### Method Detail

    - #### setConnectionFactory

          public final void setConnectionFactory(ConnectionFactory connectionFactory)

      Set the ConnectionFactory to be used by this DAO.

    - #### createCciTemplate

          protected CciTemplate createCciTemplate(ConnectionFactory connectionFactory)

      Create a CciTemplate for the given ConnectionFactory. Only invoked if populating the DAO with a ConnectionFactory reference!

      Can be overridden in subclasses to provide a CciTemplate instance with different configuration, or a custom CciTemplate subclass.

      Parameters:
        `connectionFactory` - the CCI ConnectionFactory to create a CciTemplate for
      Returns:
        the new CciTemplate instance
      See Also:
        `setConnectionFactory(javax.resource.cci.ConnectionFactory)`

    - #### getConnectionFactory

          public final ConnectionFactory getConnectionFactory()

      Return the ConnectionFactory used by this DAO.

    - #### setCciTemplate

          public final void setCciTemplate(CciTemplate cciTemplate)

      Set the CciTemplate for this DAO explicitly, as an alternative to specifying a ConnectionFactory.

    - #### getCciTemplate

          public final CciTemplate getCciTemplate()

      Return the CciTemplate for this DAO, pre-initialized with the ConnectionFactory or set explicitly.

    - #### checkDaoConfig

          protected final void checkDaoConfig()

      Description copied from class: `DaoSupport`
      Abstract subclasses must override this to check their configuration.

      Implementors should be marked as `final` if concrete subclasses are not supposed to override this template method themselves.

      Specified by:
        `checkDaoConfig` in class `DaoSupport`

    - #### getCciTemplate

          protected final CciTemplate getCciTemplate(ConnectionSpec connectionSpec)

      Obtain a CciTemplate derived from the main template instance, inheriting the ConnectionFactory and other settings but overriding the ConnectionSpec used for obtaining Connections.
      Parameters:
        `connectionSpec` - the CCI ConnectionSpec that the returned template instance is supposed to obtain Connections for
      Returns:
        the derived template instance
      See Also:
        `CciTemplate.getDerivedTemplate(javax.resource.cci.ConnectionSpec)`

    - #### getConnection

          protected final Connection getConnection()
                                            throws CannotGetCciConnectionException

      Get a CCI Connection, either from the current transaction or a new one.
      Returns:
        the CCI Connection
      Throws:
        `CannotGetCciConnectionException` - if the attempt to get a Connection failed
      See Also:
        `ConnectionFactoryUtils.getConnection(javax.resource.cci.ConnectionFactory)`

    - #### releaseConnection

          protected final void releaseConnection(Connection con)

      Close the given CCI Connection, created via this bean's ConnectionFactory, if it isn't bound to the thread.
      Parameters:
        `con` - Connection to close
      See Also:
        `ConnectionFactoryUtils.releaseConnection(javax.resource.cci.Connection, javax.resource.cci.ConnectionFactory)`