OSID - osid.control.TriggerAdminSession Service Interface Definition

Interface	osid.control.TriggerAdminSession
Implements	`osid.OsidSession`
Implemented By	`osid.control.batch.TriggerBatchAdminSession`
Used By	`osid.control.ControlManager`
Used By	`osid.control.ControlProxyManager`
Description	This session creates, updates, and deletes `Triggers`. 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 `Trigger`, a `TriggerForm` is requested using `getTriggerFormForCreate()` specifying the desired controller and record `Types` or none if no record `Types` are needed. The returned `TriggerForm` 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 `TriggerForm` is submiited to a create operation, it cannot be reused with another create operation unless the first operation was unsuccessful. Each `TriggerForm` corresponds to an attempted transaction. For updates, `TriggerForms` are requested to the `Trigger` `Id` that is to be updated using `getTriggerFormForUpdate()`. Similarly, the `TriggerForm` has metadata about the data that can be updated and it can perform validation before submitting the update. The `TriggerForm` can only be used once for a successful update and cannot be reused. The delete operations delete `Triggers`. To unmap a `Trigger` from the current `System`, the `TriggerSystemAssignmentSession` should be used. These delete operations attempt to remove the `Trigger` itself thus removing it from all known `System` catalogs. This session includes an `Id` aliasing mechanism to assign an external `Id` to an internally assigned Id.
Method	getSystemId
Description	Gets the `System` `Id` associated with this session.
Return	`osid.id.Id`		the `System Id` associated with this session
Compliance	`mandatory`		This method must be implemented.
Method	getSystem
Description	Gets the `System` associated with this session.
Return	`osid.control.System`		the system
Errors	OPERATION_FAILED		unable to complete request
Errors	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	canCreateTriggers
Description	Tests if this user can create `Triggers`. A return of true does not guarantee successful authorization. A return of false indicates that it is known creating a `Trigger` will result in a `PERMISSION_DENIED`. This is intended as a hint to an application that may opt not to offer create operations to an unauthorized user.
Return	`boolean`		`false` if `Trigger` creation is not authorized, `true` otherwise
Compliance	`mandatory`		This method must be implemented.
Method	canCreateTriggerWithRecordTypes
Description	Tests if this user can create a single `Trigger` using the desired record types. While `ControlManager.getTriggerRecordTypes()` can be used to examine which records are supported, this method tests which record(s) are required for creating a specific `Trigger`. Providing an empty array tests if a `Trigger` can be created with no records.
Parameters	`osid.type.Type[]`	`triggerRecordTypes`	array of trigger record types
Return	`boolean`		`true` if `Trigger` creation using the specified record `Types` is supported, `false` otherwise
Errors	NULL_ARGUMENT		`triggerRecordTypes` is `null`
Compliance	`mandatory`		This method must be implemented.
Method	getTriggerFormForCreate
Description	Gets the trigger form for creating new triggers. A new form should be requested for each create transaction.
Parameters	`osid.id.Id`	`controllerId`	a controller `Id`
Parameters	`osid.type.Type[]`	`triggerRecordTypes`	array of trigger record types
Return	`osid.control.TriggerForm`		the trigger form
Errors	NOT_FOUND		`controllerId` is not found
	NULL_ARGUMENT		`controllerId` or `triggerRecordTypes` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
	UNSUPPORTED		unable to get form for requested record types
Compliance	`mandatory`		This method must be implemented.
Method	createTrigger
Description	Creates a new `Trigger`.
Parameters	`osid.control.TriggerForm`	`triggerForm`	the form for this `Trigger`
Return	`osid.control.Trigger`		the new `Trigger`
Errors	ILLEGAL_STATE		`triggerForm` already used in a create transaction
	INVALID_ARGUMENT		one or more of the form elements is invalid
	NULL_ARGUMENT		`triggerForm` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
	UNSUPPORTED		`triggerForm` did not originate from `getTriggerFormForCreate()`
Compliance	`mandatory`		This method must be implemented.
Method	canUpdateTriggers
Description	Tests if this user can update `Triggers`. A return of true does not guarantee successful authorization. A return of false indicates that it is known updating a `Trigger` will result in a `PERMISSION_DENIED`. This is intended as a hint to an application that may opt not to offer update operations to an unauthorized user.
Return	`boolean`		`false` if `Trigger` modification is not authorized, `true` otherwise
Compliance	`mandatory`		This method must be implemented.
Method	getTriggerFormForUpdate
Description	Gets the trigger form for updating an existing trigger. A new trigger form should be requested for each update transaction.
Parameters	`osid.id.Id`	`triggerId`	the `Id` of the `Trigger`
Return	`osid.control.TriggerForm`		the trigger form
Errors	NOT_FOUND		`triggerId` is not found
	NULL_ARGUMENT		`triggerId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	updateTrigger
Description	Updates an existing trigger.
Parameters	`osid.control.TriggerForm`	`triggerForm`	the form containing the elements to be updated
Errors	ILLEGAL_STATE		`triggerForm` already used in an update transaction
	INVALID_ARGUMENT		the form contains an invalid value
	NULL_ARGUMENT		`triggerForm` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
	UNSUPPORTED		`triggerForm` did not originate from `getTriggerFormForUpdate()`
Compliance	`mandatory`		This method must be implemented.
Method	canDeleteTriggers
Description	Tests if this user can delete `Triggers`. A return of true does not guarantee successful authorization. A return of false indicates that it is known deleting a `Trigger` will result in a `PERMISSION_DENIED`. This is intended as a hint to an application that may opt not to offer delete operations to an unauthorized user.
Return	`boolean`		`false` if `Trigger` deletion is not authorized, `true` otherwise
Compliance	`mandatory`		This method must be implemented.
Method	deleteTrigger
Description	Deletes a `Trigger`.
Parameters	`osid.id.Id`	`triggerId`	the `Id` of the `Trigger` to remove
Errors	NOT_FOUND		`triggerId` not found
	NULL_ARGUMENT		`triggerId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	canManageTriggerAliases
Description	Tests if this user can manage `Id` aliases for `Triggers`. 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.
Return	`boolean`		`false` if `Trigger` aliasing is not authorized, `true` otherwise
Compliance	`mandatory`		This method must be implemented.
Method	aliasTrigger
Description	Adds an `Id` to a `Trigger` for the purpose of creating compatibility. The primary `Id` of the `Trigger` is determined by the provider. The new `Id` performs as an alias to the primary `Id`. If the alias is a pointer to another trigger, it is reassigned to the given trigger `Id`.
Parameters	`osid.id.Id`	`triggerId`	the `Id` of a `Trigger`
Parameters	`osid.id.Id`	`aliasId`	the alias `Id`
Errors	ALREADY_EXISTS		`aliasId` is already assigned
	NOT_FOUND		`triggerId` not found
	NULL_ARGUMENT		`triggerId` or `aliasId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.