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Java Source Code / Java Documentation » Database ORM » db ojb » org.apache.ojb.broker.accesslayer

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.apache.ojb.broker.accesslayer .ConnectionManagerImpl

ConnectionManagerImpl
public class ConnectionManagerImpl implements ConnectionManagerIF(Code)
	Manages Connection ressources. See Also: ConnectionManagerIF author: Thomas Mahler version: $Id: ConnectionManagerImpl.java,v 1.17.2.4 2005/12/21 22:22:58 tomdz Exp $

Constructor Summary
public	ConnectionManagerImpl(PersistenceBroker broker)

Method Summary
public void	clearBatch() Clear batch (if the batch mode where used).
public void	executeBatch() Execute batch (if the batch mode where used).
public void	executeBatchIfNecessary() Execute batch if the number of statements in it exceeded the limit (if the batch mode where used).
public Connection	getConnection() Returns the underlying connection, requested from org.apache.ojb.broker.accesslayer.ConnectionFactory . PB#beginTransaction() opens a single jdbc connection via PB#serviceConnectionManager().localBegin(). If you call PB#serviceConnectionManager().getConnection() later it returns the already opened connection. The PB instance will release the used connection during PB#commitTransaction() or PB#abortTransaction() or PB#close(). NOTE: Never call Connection.close() on the connection requested from the ConnectionManager. Cleanup of used connection is done by OJB itself.
public JdbcConnectionDescriptor	getConnectionDescriptor()
public Platform	getSupportedPlatform()
public ConnectionFactory	getUnderlyingConnectionFactory() Returns the underlying used org.apache.ojb.broker.accesslayer.ConnectionFactory implementation.
public boolean	isAlive(Connection conn) Check if underlying connection was alive.
public boolean	isBatchMode()
public boolean	isInLocalTransaction()
public void	localBegin() Start transaction on the underlying connection.
public void	localCommit() Call commit on the underlying connection.
public void	localRollback() Call rollback on the underlying connection.
public void	releaseConnection() Release connection to the org.apache.ojb.broker.accesslayer.ConnectionFactory , make sure that you call the method in either case, it's the only way to free the connection.
protected void	restoreAutoCommitState() Reset autoCommit state.
public void	setBatchMode(boolean mode) Sets the batch mode on or off - this switch only works if you set attribute `batch-mode` in `jdbc-connection-descriptor` true and your database support batch mode.

Constructor Detail

ConnectionManagerImpl
public ConnectionManagerImpl(PersistenceBroker broker)(Code)

Method Detail

clearBatch
public void clearBatch()(Code)
	Clear batch (if the batch mode where used).

executeBatch
public void executeBatch() throws OJBBatchUpdateException(Code)
	Execute batch (if the batch mode where used).

executeBatchIfNecessary
public void executeBatchIfNecessary() throws OJBBatchUpdateException(Code)
	Execute batch if the number of statements in it exceeded the limit (if the batch mode where used).

getConnection

public Connection getConnection() throws LookupException(Code)

Returns the underlying connection, requested from org.apache.ojb.broker.accesslayer.ConnectionFactory .

PB#beginTransaction() opens a single jdbc connection via PB#serviceConnectionManager().localBegin(). If you call PB#serviceConnectionManager().getConnection() later it returns the already opened connection. The PB instance will release the used connection during PB#commitTransaction() or PB#abortTransaction() or PB#close().

NOTE: Never call Connection.close() on the connection requested from the ConnectionManager. Cleanup of used connection is done by OJB itself. If you need to release a used connection call ConnectionManagerImpl.releaseConnection() .

getConnectionDescriptor
public JdbcConnectionDescriptor getConnectionDescriptor()(Code)
	Returns the associated org.apache.ojb.broker.metadata.JdbcConnectionDescriptor

getSupportedPlatform
public Platform getSupportedPlatform()(Code)

getUnderlyingConnectionFactory
public ConnectionFactory getUnderlyingConnectionFactory()(Code)
	Returns the underlying used org.apache.ojb.broker.accesslayer.ConnectionFactory implementation.

isAlive
public boolean isAlive(Connection conn)(Code)
	Check if underlying connection was alive.

isBatchMode
public boolean isBatchMode()(Code)
	the batch mode.

isInLocalTransaction
public boolean isInLocalTransaction()(Code)

localBegin
public void localBegin()(Code)
	Start transaction on the underlying connection.

localCommit
public void localCommit()(Code)
	Call commit on the underlying connection.

localRollback
public void localRollback()(Code)
	Call rollback on the underlying connection.

releaseConnection
public void releaseConnection()(Code)
	Release connection to the org.apache.ojb.broker.accesslayer.ConnectionFactory , make sure that you call the method in either case, it's the only way to free the connection.

restoreAutoCommitState
protected void restoreAutoCommitState()(Code)
	Reset autoCommit state.

setBatchMode
public void setBatchMode(boolean mode)(Code)
	Sets the batch mode on or off - this switch only works if you set attribute `batch-mode` in `jdbc-connection-descriptor` true and your database support batch mode. Parameters: mode - the batch mode

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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