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package javax.resource.spi;
import javax.resource.ResourceException;
/** LocalTransaction interface provides support for transactions that
* are managed internal to an EIS resource manager, and do not require
* an external transaction manager.
*
* <p>A resource adapter implements the javax.resource.spi.LocalTransaction
* interface to provide support for local transactions that are performed
* on the underlying resource manager.
*
* <p>If a resource adapter supports the LocalTransaction interface, then
* the application server can choose to perform local transaction
* optimization (uses local transaction instead of a JTA transaction for
* a single resource manager case).
*
* @version 0.5
* @author Rahul Sharma
* @see javax.resource.spi.ManagedConnection
**/
public interface LocalTransaction {
/** Begin a local transaction
*
* @throws ResourceException generic exception if operation fails
* @throws LocalTransactionException
* error condition related
* to local transaction management
* @throws ResourceAdapterInternalException
* error condition internal to resource
* adapter
* @throws EISSystemException EIS instance specific error condition
**/
public
void begin() throws ResourceException;
/** Commit a local transaction
*
* @throws ResourceException generic exception if operation fails
* @throws LocalTransactionException
* error condition related
* to local transaction management
* @throws ResourceAdapterInternalException
* error condition internal to resource
* adapter
* @throws EISSystemException EIS instance specific error condition
**/
public
void commit() throws ResourceException;
/** Rollback a local transaction
* @throws ResourceException generic exception if operation fails
* @throws LocalTransactionException
* error condition related
* to local transaction management
* @throws ResourceAdapterInternalException
* error condition internal to resource
* adapter
* @throws EISSystemException EIS instance specific error condition
**/
public
void rollback() throws ResourceException;
}
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