public interface InteractionCallback<T>
This is particularly useful for delegating to existing data access code
that expects an Interaction to work on and throws ResourceException. For newly
written code, it is strongly recommended to use CciTemplate's more specific
execute
variants.
CciTemplate.execute(InteractionCallback)
,
CciTemplate.execute(javax.resource.cci.InteractionSpec, javax.resource.cci.Record)
,
CciTemplate.execute(javax.resource.cci.InteractionSpec, RecordCreator, RecordExtractor)
Modifier and Type | Method and Description |
---|---|
T |
doInInteraction(Interaction interaction,
ConnectionFactory connectionFactory)
Gets called by
CciTemplate.execute with an active CCI Interaction. |
T doInInteraction(Interaction interaction, ConnectionFactory connectionFactory) throws ResourceException, SQLException, DataAccessException
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.
interaction
- active CCI InteractionconnectionFactory
- the CCI ConnectionFactory that the Connection was
created with (gives access to RecordFactory and ResourceAdapterMetaData)null
if noneResourceException
- if thrown by a CCI method, to be auto-converted
to a DataAccessExceptionSQLException
- if thrown by a ResultSet method, to be auto-converted
to a DataAccessExceptionDataAccessException
- in case of custom exceptionsConnectionFactory.getRecordFactory()
,
ConnectionFactory.getMetaData()
,
CciTemplate.execute(javax.resource.cci.InteractionSpec, RecordCreator, RecordExtractor)