blackboard.persist.course
Class CartridgeDbLoader.Default

java.lang.Object
  |
  +--blackboard.persist.course.CartridgeDbLoader.Default

Enclosing class:

CartridgeDbLoader

public static final class CartridgeDbLoader.Default

extends java.lang.Object

A utility class that provides quick access to the CartridgeDbLoader 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

CartridgeDbLoader.Default()

Method Summary

static CartridgeDbLoader

getInstance() Returns the CartridgeDbLoader 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

CartridgeDbLoader.Default

public CartridgeDbLoader.Default()

Method Detail

getInstance

public static CartridgeDbLoader getInstance()
                                     throws PersistenceException

Returns the CartridgeDbLoader instance associated with the default instance of the database BbPersistenceManager.

Calling this method is equivalent to executing the following code:

 BbPersistenceManager pm = BbServiceManager.getPersistenceService().getDbPersistenceManager();
 CartridgeDbLoader loader = (CartridgeDbLoader) pm.getLoader( CartridgeDbLoader.TYPE ) );
 

Returns:

the CartridgeDbLoader instance associated with the default database persistence manager

Throws:

PersistenceException - if an error occurs when trying to retrieve the CartridgeDbLoader instance