org.datanucleus.store
Class NucleusConnectionImpl

java.lang.Object
  org.datanucleus.store.NucleusConnectionImpl

All Implemented Interfaces:

NucleusConnection

public class NucleusConnectionImpl
extends java.lang.Object
implements NucleusConnection

Representation of a datastore connection. Provides access to the native connection for the datastore.

Field Summary

protected static Localiser

LOCALISER Localisation utility for output messages

Constructor Summary

NucleusConnectionImpl(java.lang.Object conn, java.lang.Runnable onClose)
Constructor for a datastore connection holder.

Method Summary

void	close() Method to close the connection.
java.lang.Object	getNativeConnection() Accessor for the native connection for this datastore.

Methods inherited from class java.lang.Object

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

Field Detail

LOCALISER

protected static final Localiser LOCALISER

Localisation utility for output messages

Constructor Detail

NucleusConnectionImpl

public NucleusConnectionImpl(java.lang.Object conn,
                             java.lang.Runnable onClose)

Constructor for a datastore connection holder.

Parameters:

conn - The native connection

onClose - What to perform on closure

Method Detail

close

public void close()

Method to close the connection. Performs whatever action was specified at creation.

Specified by:

close in interface NucleusConnection

Throws:

NucleusUserException - Thrown if the connection is no longer available.

getNativeConnection

public java.lang.Object getNativeConnection()

Accessor for the native connection for this datastore. For RDBMS this would be a java.sql.Connection, or for db4o an ObjectContainer etc.

Specified by:

getNativeConnection in interface NucleusConnection

Returns:

The native connection