blackboard.persist.content
Interface LinkDbLoader

All Superinterfaces:

Loader

public interface LinkDbLoader
extends Loader

This interface describes the set of methods that all database loaders for Link objects must implement.

Loading methods are named according to the criteria used for loading and the type of load that is performed.

Since:

Bb 6.0

Version:

$Revision: #1 $ $Date: 2005/06/27 $

Nested Class Summary

static class

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

Field Summary

static java.lang.String

TYPE Type used to obtain an instance of the class configured to provide the implementation for this interface.

Method Summary

BbList	loadByCourseId(Id courseId) Load the Links defined within the given course (identified by id) from the database using a connection obtained through this object's database context.
BbList	loadByCourseId(Id courseId, java.sql.Connection con) Load the Links defined within the given course (identified by id) from the database using the supplied connection.
Link	loadById(Id id) Load the Link with the given Id from the database using a connection obtained through this object's database context.
Link	loadById(Id id, java.sql.Connection con) Load the Link with the given Id from the database using the supplied connection.
BbList	loadByReferredToIdAndType(Id id, Link.ReferredToType eReferredToType) Load the Link with the given referred to id and type from the database using a connection obtained through this object's database context.
BbList	loadByReferredToIdAndType(Id id, Link.ReferredToType eReferredToType, java.sql.Connection con) Load the Links with the given referred to id and type from the database using the supplied connection.
Link	loadByReferrerIdAndType(Id id, Link.ReferrerType eReferrerType) Load the Link with the given referrer id and type from the database using a connection obtained through this object's database context.
Link	loadByReferrerIdAndType(Id id, Link.ReferrerType eReferrerType, java.sql.Connection con) Load the Link with the given referrer id and type from the database using the supplied connection.

Methods inherited from interface blackboard.persist.Loader

getAppVersion, init

Field Detail

TYPE

static final java.lang.String TYPE

Type used to obtain an instance of the class configured to provide the implementation for this interface. Used when making a call to BbPersistenceManager.getLoader(String).

See Also:

Constant Field Values

Method Detail

loadById

Link loadById(Id id)
              throws KeyNotFoundException,
                     PersistenceException

Load the Link with the given Id from the database using a connection obtained through this object's database context.

Parameters:

id - the Id of the Link that should be loaded

Throws:

KeyNotFoundException - if there is no Link in the database with the given Id

PersistenceException - if some other error occurs while loading the object

loadById

Link loadById(Id id,
              java.sql.Connection con)
              throws KeyNotFoundException,
                     PersistenceException

Load the Link with the given Id from the database using the supplied connection.

Parameters:

id - the Id of the Link that should be loaded

con - the Connection to use to perform the load. If left null, method will use default connection.

Throws:

KeyNotFoundException - if there is no Link in the database with the given Id

PersistenceException - if some other error occurs while loading the object

loadByCourseId

BbList loadByCourseId(Id courseId)
                      throws KeyNotFoundException,
                             PersistenceException

Load the Links defined within the given course (identified by id) from the database using a connection obtained through this object's database context.

Parameters:

id - the Id of the Link that should be loaded

Throws:

KeyNotFoundException - if the provided course id value is invalid

PersistenceException - if some other error occurs while loading the object

loadByCourseId

BbList loadByCourseId(Id courseId,
                      java.sql.Connection con)
                      throws KeyNotFoundException,
                             PersistenceException

Load the Links defined within the given course (identified by id) from the database using the supplied connection.

Parameters:

id - the Id of the Course that from which links should be loaded

con - the Connection to use to perform the load. If left null, method will use default connection.

Throws:

KeyNotFoundException - if the provided course id value is invalid

PersistenceException - if some other error occurs while loading the object

loadByReferrerIdAndType

Link loadByReferrerIdAndType(Id id,
                             Link.ReferrerType eReferrerType)
                             throws KeyNotFoundException,
                                    PersistenceException

Load the Link with the given referrer id and type from the database using a connection obtained through this object's database context.

Parameters:

id - the Id of the Course from which links should be loaded

Throws:

KeyNotFoundException - if there is no Link in the database with the given referrer id and type

PersistenceException - if some other error occurs while loading the object

loadByReferrerIdAndType

Link loadByReferrerIdAndType(Id id,
                             Link.ReferrerType eReferrerType,
                             java.sql.Connection con)
                             throws KeyNotFoundException,
                                    PersistenceException

Load the Link with the given referrer id and type from the database using the supplied connection.

Parameters:

id - the Id of the Link.Referrer that should be loaded

eReferrerType - the Link.ReferrerType

con - the Connection to use to perform the load. If left null, method will use default connection.

Throws:

KeyNotFoundException - if there is no Link in the database with the given referrer id and type

PersistenceException - if some other error occurs while loading the object

loadByReferredToIdAndType

BbList loadByReferredToIdAndType(Id id,
                                 Link.ReferredToType eReferredToType)
                                 throws KeyNotFoundException,
                                        PersistenceException

Load the Link with the given referred to id and type from the database using a connection obtained through this object's database context.

Parameters:

id - the Id of the Link.ReferrerType that should be loaded

eReferredToType - the Link.ReferrerType

Throws:

KeyNotFoundException - if the provided id value is invalid

PersistenceException - if some other error occurs while loading the object

loadByReferredToIdAndType

BbList loadByReferredToIdAndType(Id id,
                                 Link.ReferredToType eReferredToType,
                                 java.sql.Connection con)
                                 throws KeyNotFoundException,
                                        PersistenceException

Load the Links with the given referred to id and type from the database using the supplied connection.

Parameters:

id - the Id of the Link.ReferredToType that should be loaded

eReferredToType - the Link.ReferredToType

con - the Connection to use to perform the load. If left null, method will use default connection.

Throws:

KeyNotFoundException - if the provided id value is invalid

PersistenceException - if some other error occurs while loading the object