org.springframework.jca.cci.connection
Class ConnectionFactoryUtils

java.lang.Object
  org.springframework.jca.cci.connection.ConnectionFactoryUtils

public abstract class ConnectionFactoryUtils
extends Object

Helper class that provides static methods to obtain CCI Connections from a ConnectionFactory, and to close Connections if necessary. Has special support for Spring-managed connections, e.g. for use with CciLocalTransactionManager.

Used internally by CciTemplate, CCI operation objects and the CciLocalTransactionManager. Can also be used directly in application code.

Since:

1.2

Author:

Thierry Templier, Juergen Hoeller

See Also:

getConnection(javax.resource.cci.ConnectionFactory), releaseConnection(javax.resource.cci.Connection, javax.resource.cci.ConnectionFactory), CciLocalTransactionManager, CciTemplate, MappingRecordOperation

Constructor Summary

ConnectionFactoryUtils()

Method Summary

static Connection	doGetConnection(ConnectionFactory cf) Actually get a CCI Connection for the given ConnectionFactory.
static void	doReleaseConnection(Connection con, ConnectionFactory cf) Actually close a JCA CCI Connection for the given DataSource.
static Connection	getConnection(ConnectionFactory cf) Get a Connection from the given DataSource.
static void	releaseConnection(Connection con, ConnectionFactory cf) Close the given Connection if necessary, i.e. if it is not bound to the thread and it is not created by a SmartDataSource returning shouldClose=false.

Methods inherited from class java.lang.Object

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

Constructor Detail

ConnectionFactoryUtils

public ConnectionFactoryUtils()

Method Detail

getConnection

public static Connection getConnection(ConnectionFactory cf)
                                throws CannotGetCciConnectionException

Get a Connection from the given DataSource. Changes any CCI exception into the Spring hierarchy of unchecked generic data access exceptions, simplifying calling code and making any exception that is thrown more meaningful.

Is aware of a corresponding Connection bound to the current thread, for example when using CciLocalTransactionManager. Will bind a Connection to the thread if transaction synchronization is active (e.g. if in a JTA transaction).

Parameters:

cf - ConnectionFactory to get Connection from

Returns:

a CCI Connection from the given ConnectionFactory

Throws:

CannotGetCciConnectionException - if the attempt to get a Connection failed

See Also:

TransactionSynchronizationManager, CciLocalTransactionManager

doGetConnection

public static Connection doGetConnection(ConnectionFactory cf)
                                  throws ResourceException

Actually get a CCI Connection for the given ConnectionFactory. Same as getConnection, but throwing the original ResourceException.

Is aware of a corresponding Connection bound to the current thread, for example when using DataSourceTransactionManager. Will bind a Connection to the thread if transaction synchronization is active (e.g. if in a JTA transaction).

Directly accessed by TransactionAwareDataSourceProxy.

Parameters:

cf - ConnectionFactory to get Connection from

Returns:

a CCI Connection from the given ConnectionFactory

Throws:

ResourceException - if thrown by CCI API methods

See Also:

getConnection(ConnectionFactory), TransactionAwareConnectionFactoryProxy

releaseConnection

public static void releaseConnection(Connection con,
                                     ConnectionFactory cf)

Close the given Connection if necessary, i.e. if it is not bound to the thread and it is not created by a SmartDataSource returning shouldClose=false.

Parameters:

con - Connection to close if necessary (if this is null, the call will be ignored)

cf - ConnectionFactory that the Connection came from

doReleaseConnection

public static void doReleaseConnection(Connection con,
                                       ConnectionFactory cf)
                                throws ResourceException

Actually close a JCA CCI Connection for the given DataSource. Same as releaseConnection, but throwing the original ResourceException.

Directly accessed by TransactionAwareConnectionFactoryProxy.

Throws:

ResourceException - if thrown by JCA CCI methods

See Also:

releaseConnection(javax.resource.cci.Connection, javax.resource.cci.ConnectionFactory)