org.osid.forum

Interface ForumAdminSession

All Superinterfaces:

java.lang.AutoCloseable, java.io.Closeable, OsidSession

All Known Subinterfaces:

ForumBatchAdminSession

public interface ForumAdminSession
extends OsidSession

This session creates, updates, and deletes Forums. The data for create and update is provided by the consumer via the form object. OsidForms are requested for each create or update and may not be reused.

Create and update operations differ in their usage. To create a Forum, a ForumForm is requested using getForumFormForCreate() specifying the desired record Types or none if no record Types are needed. The returned ForumForm will indicate that it is to be used with a create operation and can be used to examine metdata or validate data prior to creation. Once the ForumForm is submiited to a create operation, it cannot be reused with another create operation unless the first operation was unsuccessful. Each ForumForm corresponds to an attempted transaction.

For updates, ForumForms are requested to the Forum Id that is to be updated using getForumFormForUpdate(). Similarly, the ForumForm has metadata about the data that can be updated and it can perform validation before submitting the update. The ForumForm can only be used once for a successful update and cannot be reused.

The delete operations delete Forums.

This session includes an Id aliasing mechanism to assign an external Id to an internally assigned Id.

Method Summary

Methods

Modifier and Type	Method and Description
void	aliasForum(Id forumId, Id aliasId) Adds an Id to a Forum for the purpose of creating compatibility.
boolean	canCreateForums() Tests if this user can create Forums.
boolean	canCreateForumWithRecordTypes(Type[] forumRecordTypes) Tests if this user can create a single Forum using the desired record types.
boolean	canDeleteForums() Tests if this user can delete Forums A return of true does not guarantee successful authorization.
boolean	canManageForumAliases() Tests if this user can manage Id aliases for Forums.
boolean	canUpdateForums() Tests if this user can update Forums.
Forum	createForum(ForumForm forumForm) Creates a new Forum.
void	deleteForum(Id forumId) Deletes a Forum.
ForumForm	getForumFormForCreate(Type[] forumRecordTypes) Gets the forum form for creating new forums.
ForumForm	getForumFormForUpdate(Id forumId) Gets the forum form for updating an existing forum.
void	updateForum(ForumForm forumForm) Updates an existing forum.

Methods inherited from interface org.osid.OsidSession

getAuthenticatedAgent, getAuthenticatedAgentId, getClockRate, getDate, getEffectiveAgent, getEffectiveAgentId, getFormatType, getLocale, isAuthenticated, startTransaction, supportsTransactions

Methods inherited from interface org.osid.binding.java.OsidSession

close

Methods inherited from interface java.io.Closeable

close

Method Detail

canCreateForums

boolean canCreateForums()

Tests if this user can create Forums. A return of true does not guarantee successful authorization. A return of false indicates that it is known creating a Forum will result in a PERMISSION_DENIED. This is intended as a hint to an application that may not wish to offer create operations to unauthorized users.

Returns:

false if Forum creation is not authorized, true otherwise

Compliance:

mandatory - This method must be implemented.

canCreateForumWithRecordTypes

boolean canCreateForumWithRecordTypes(Type[] forumRecordTypes)

Tests if this user can create a single Forum using the desired record types. While ForumManager.getForumRecordTypes() can be used to examine which records are supported, this method tests which record(s) are required for creating a specific Forum. Providing an empty array tests if a Forum can be created with no records.

Parameters:

forumRecordTypes - array of forum record types

Returns:

true if Forum creation using the specified record Types is supported, false otherwise

Throws:

NullArgumentException - forumRecordTypes is null

Compliance:

mandatory - This method must be implemented.

getForumFormForCreate

ForumForm getForumFormForCreate(Type[] forumRecordTypes)
                                throws OperationFailedException,
                                       PermissionDeniedException

Gets the forum form for creating new forums. A new form should be requested for each create transaction.

Parameters:

forumRecordTypes - array of forum record types

Returns:

the forum form

Throws:

NullArgumentException - forumRecordTypes is null

OperationFailedException - unable to complete request

PermissionDeniedException - authorization failure

UnsupportedException - unable to get form for requested record types

Compliance:

mandatory - This method must be implemented.

createForum

Forum createForum(ForumForm forumForm)
                  throws OperationFailedException,
                         PermissionDeniedException

Creates a new Forum.

Parameters:

forumForm - the form for this Forum

Returns:

the new Forum

Throws:

IllegalStateException - forumForm already used in a create transaction

InvalidArgumentException - one or more of the form elements is invalid

NullArgumentException - forumForm is null

OperationFailedException - unable to complete request

PermissionDeniedException - authorization failure

UnsupportedException - forumForm did not originate from getForumFormForCreate()

Compliance:

mandatory - This method must be implemented.

canUpdateForums

boolean canUpdateForums()

Tests if this user can update Forums. A return of true does not guarantee successful authorization. A return of false indicates that it is known updating a Forum will result in a PERMISSION_DENIED. This is intended as a hint to an application that may not wish to offer update operations to unauthorized users.

Returns:

false if Forum modification is not authorized, true otherwise

Compliance:

mandatory - This method must be implemented.

getForumFormForUpdate

ForumForm getForumFormForUpdate(Id forumId)
                                throws NotFoundException,
                                       OperationFailedException,
                                       PermissionDeniedException

Gets the forum form for updating an existing forum. A new forum form should be requested for each update transaction.

Parameters:

forumId - the Id of the Forum

Returns:

the forum form

Throws:

NotFoundException - forumId is not found

NullArgumentException - forumId is null

OperationFailedException - unable to complete request

PermissionDeniedException - authorization failure

Compliance:

mandatory - This method must be implemented.

updateForum

void updateForum(ForumForm forumForm)
                 throws OperationFailedException,
                        PermissionDeniedException

Updates an existing forum.

Parameters:

forumForm - the form containing the elements to be updated

Throws:

IllegalStateException - forumForm already used in an update transaction

InvalidArgumentException - the form contains an invalid value

NullArgumentException - forumForm is null

OperationFailedException - unable to complete request

PermissionDeniedException - authorization failure

UnsupportedException - forumForm did not originate from getForumFormForUpdate()

Compliance:

mandatory - This method must be implemented.

canDeleteForums

boolean canDeleteForums()

Tests if this user can delete Forums A return of true does not guarantee successful authorization. A return of false indicates that it is known deleting a Forum will result in a PERMISSION_DENIED. This is intended as a hint to an application that may not wish to offer delete operations to unauthorized users.

Returns:

false if Forum deletion is not authorized, true otherwise

Compliance:

mandatory - This method must be implemented.

deleteForum

void deleteForum(Id forumId)
                 throws NotFoundException,
                        OperationFailedException,
                        PermissionDeniedException

Deletes a Forum.

Parameters:

forumId - the Id of the Forum to remove

Throws:

NotFoundException - forumId not found

NullArgumentException - forumId is null

OperationFailedException - unable to complete request

PermissionDeniedException - authorization failure

Compliance:

mandatory - This method must be implemented.

canManageForumAliases

boolean canManageForumAliases()

Tests if this user can manage Id aliases for Forums. A return of true does not guarantee successful authorization. A return of false indicates that it is known changing an alias will result in a PERMISSION_DENIED. This is intended as a hint to an application that may opt not to offer alias operations to an unauthorized user.

Returns:

false if Forum aliasing is not authorized, true otherwise

Compliance:

mandatory - This method must be implemented.

aliasForum

void aliasForum(Id forumId,
              Id aliasId)
                throws AlreadyExistsException,
                       NotFoundException,
                       OperationFailedException,
                       PermissionDeniedException

Adds an Id to a Forum for the purpose of creating compatibility. The primary Id of the Forum is determined by the provider. The new Id performs as an alias to the primary Id. If the alias is a pointer to another forum, it is reassigned to the given forum Id.

Parameters:

forumId - the Id of a Forum

aliasId - the alias Id

Throws:

AlreadyExistsException - aliasId is already assigned

NotFoundException - forumId not found

NullArgumentException - forumId or aliasId is null

OperationFailedException - unable to complete request

PermissionDeniedException - authorization failure

Compliance:

mandatory - This method must be implemented.