接口 InteractionCallback<T>

    • 方法详细资料

      • doInInteraction

        T doInInteraction​(Interaction interaction,
                          ConnectionFactory connectionFactory)
                   throws ResourceException,
                          SQLException,
                          DataAccessException
        Gets called by CciTemplate.execute with an active CCI Interaction. Does not need to care about activating or closing the Interaction, or handling transactions.

        If called without a thread-bound CCI transaction (initiated by CciLocalTransactionManager), the code will simply get executed on the CCI Interaction with its transactional semantics. If CciTemplate is configured to use a JTA-aware ConnectionFactory, the CCI Interaction and thus the callback code will be transactional if a JTA transaction is active.

        Allows for returning a result object created within the callback, i.e. a domain object or a collection of domain objects. Note that there's special support for single step actions: see the CciTemplate.execute variants. A thrown RuntimeException is treated as application exception: it gets propagated to the caller of the template.

        参数:
        interaction - active CCI Interaction
        connectionFactory - the CCI ConnectionFactory that the Connection was created with (gives access to RecordFactory and ResourceAdapterMetaData)
        返回:
        a result object, or null if none
        抛出:
        ResourceException - if thrown by a CCI method, to be auto-converted to a DataAccessException
        SQLException - if thrown by a ResultSet method, to be auto-converted to a DataAccessException
        DataAccessException - in case of custom exceptions
        另请参阅:
        ConnectionFactory.getRecordFactory(), ConnectionFactory.getMetaData(), CciTemplate.execute(javax.resource.cci.InteractionSpec, RecordCreator, RecordExtractor)