org.datanucleus.store.connection
Class AbstractManagedConnection

java.lang.Object
  org.datanucleus.store.connection.AbstractManagedConnection

All Implemented Interfaces:

ManagedConnection

public abstract class AbstractManagedConnection
extends java.lang.Object
implements ManagedConnection

Abstract implementation of a managed connection.

Field Summary

protected java.lang.Object	conn The underlying Connection.
protected java.util.List<ManagedConnectionResourceListener>	listeners
protected boolean	locked
protected boolean	managed if managed by TransactionManager can reuse several times inside the same transaction.

Constructor Summary

AbstractManagedConnection()

Method Summary

void	addListener(ManagedConnectionResourceListener listener) Registers a ManagedConnectionResourceListener
void	flush() Flush the connection.
boolean	isLocked() whether access to this ManagedConnection has been locked.
void	lock() lock the access to this ManagedConnection
void	release() Release this connection.
void	removeListener(ManagedConnectionResourceListener listener) Deregister a ManagedConnectionResourceListener
void	setManagedResource() Whether this connection is managed by a transaction manager
java.lang.String	toString()
void	unlock() unlock the access to this ManagedConnection

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.datanucleus.store.connection.ManagedConnection

close, getConnection, getXAResource

Field Detail

conn

protected java.lang.Object conn

The underlying Connection.

managed

protected boolean managed

if managed by TransactionManager can reuse several times inside the same transaction.

locked

protected boolean locked

listeners

protected java.util.List<ManagedConnectionResourceListener> listeners

Constructor Detail

AbstractManagedConnection

public AbstractManagedConnection()

Method Detail

release

public void release()

Release this connection. Releasing this connection will allow this managed connection to be used one or more times inside the same transaction. If this managed connection is managed by a transaction manager, release is a no-op, otherwise the physical connection is closed

Specified by:

release in interface ManagedConnection

setManagedResource

public void setManagedResource()

Description copied from interface: ManagedConnection

Whether this connection is managed by a transaction manager

Specified by:

setManagedResource in interface ManagedConnection

addListener

public void addListener(ManagedConnectionResourceListener listener)

Description copied from interface: ManagedConnection

Registers a ManagedConnectionResourceListener

Specified by:

addListener in interface ManagedConnection

Parameters:

listener - The listener

removeListener

public void removeListener(ManagedConnectionResourceListener listener)

Description copied from interface: ManagedConnection

Deregister a ManagedConnectionResourceListener

Specified by:

removeListener in interface ManagedConnection

Parameters:

listener - The listener

flush

public void flush()

Description copied from interface: ManagedConnection

Flush the connection. It must invoke the operation ManagedConnectionResourceListener.managedConnectionFlushed()

Specified by:

flush in interface ManagedConnection

isLocked

public boolean isLocked()

Description copied from interface: ManagedConnection

whether access to this ManagedConnection has been locked.

Specified by:

isLocked in interface ManagedConnection

Returns:

true if locked

lock

public void lock()

Description copied from interface: ManagedConnection

lock the access to this ManagedConnection

Specified by:

lock in interface ManagedConnection

unlock

public void unlock()

Description copied from interface: ManagedConnection

unlock the access to this ManagedConnection

Specified by:

unlock in interface ManagedConnection

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object