blackboard.persist.discussionboard
Class MessageDbLoader.Default

java.lang.Object
  extended by blackboard.persist.discussionboard.MessageDbLoader.Default
Enclosing interface:
MessageDbLoader

public static final class MessageDbLoader.Default
extends java.lang.Object

A utility class that provides quick access to the MessageDbLoader instance associated with the default instance of the database BbPersistenceManager.

This class and its method(s) are conveniences and should be used wisely. If one is retrieving many Loader and/or Persister instances within some scope, it will likely be more efficient to retrieve the default database persistence manager directly, and then retrieve loader/persister instances from it instead of making several calls to this and/or other loader/persister utility classes.


Constructor Summary
MessageDbLoader.Default()
           
 
Method Summary
static MessageDbLoader getInstance()
          Returns the MessageDbLoader instance associated with the default instance of the database BbPersistenceManager.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

MessageDbLoader.Default

public MessageDbLoader.Default()
Method Detail

getInstance

public static MessageDbLoader getInstance()
                                   throws PersistenceException
Returns the MessageDbLoader instance associated with the default instance of the database BbPersistenceManager.

Calling this method is equivalent to executing the following code:
 BbPersistenceManager pm = PersistenceServiceFactory.getInstance().getDbPersistenceManager();
 MessageDbLoader loader = (MessageDbLoader) pm.getLoader( MessageDbLoader.TYPE ) );
 

Returns:
the MessageDbLoader instance associated with the default database persistence manager
Throws:
PersistenceException - if an error occurs when trying to retrieve the MessageDbLoader instance


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