Element Type Definition: EXTENSION

Oracle Designer Model, Release 6i
Element Type Definition

Element Type Name	EXTENSION_POINT
Short Name	EPA
View Name	CI_EXTENSION_POINTS
Description	An extension point is a 'socket' into which other use cases may be
	'plugged' when the behaviour described by this use case occurs. A use
	case with extension points should make sense even if no extensions
	are provided. The set of extensions exposed by a use case is
	effectively a type of interface in which all extension point names
	must be unique

Sub-type of	USE_CASE_ACTION
Versioning:	Belongs to: USE_CASE versionable object
Rules:	API Spec Uniqueness Criteria Deletion Rules
Descriptor:	USE_CASE_REFERENCE GENERAL_ACTION_REFERENCE SEQUENCE_IN_PARENT NAME
Used by:	JDeveloper Enterprise Edition
Underlying table:	SDD_UCA

Reference Properties
Name	Opt ?	Notes	Relationship	In Arc
USE_CASE_REFERENCE	N	Prompt: Use Case Transferable only if null Defined on UCA supertype	Must be part of one and only one USE_CASE
GENERAL_ACTION_REFERENCE	Y	Prompt: Parent General Action Defined on UCA supertype	May be a child of one and only one GENERAL_ACTION

Properties
Name	Datatype	Opt ?	Notes	Domain	Default Value
NAME	VARCHAR2(100)	N	Name of the use case action Prompt: Name Defined on UCA supertype
SEQUENCE_IN_PARENT	NUMBER(6, 0)	N	Sequence of this use case action within its parent, or within other 'top level' use case actions that do not have parents Prompt: Sequence Within Parent System maintained: API provides a value only if left null by the user Defined on UCA supertype
USE_CASE_ACTION_SUBTYPE	VARCHAR2(3)	N	Sub-type discriminator. Internal property indicating the specific type of use case action Not displayed Uppercase System maintained Not updatable by user Defined on UCA supertype	USE_CASE_ACTION_SUBTYPE
PARENT_IVID	NUMBER(38, 0)	Y	Internal use only. Exists on "secondary" element types from a versioning viewpoint. Contains the IVID of the primary element type (not necessarily a PAC) forming the basis of the "versionable object" to which this element type belongs Not displayed System maintained Updatable only if null Defined on SAC supertype
PAC_REFERENCE	NUMBER(38, 0)	Y	Internal use only. Exists on "secondary" element types from a structural viewpoint. Contains the IRID of the PAC forming the basis of the "logical object" to which this element type belongs Not displayed System maintained Not updatable by user Defined on SAC supertype

Multi-line Text
Name	Text Type	Prompt
DESCRIPTION	CDIDSC Defined on UCA supertype	Description
NOTES	CDINOT Defined on UCA supertype	Notes

Other Properties
The following 'standard' properties are also inherited by all element types: ID IRID IVID ELEMENT_TYPE_NAME DATE_CREATED CREATED_BY DATE_CHANGED CHANGED_BY NUMBER_OF_TIMES_MODIFIED TYPES

Other element types that reference EXTENSION_POINT:

Each DIAGRAM_ELEMENT_USAGE must be for one and only one CIELEMENT (in arc)
Each ELEMENT_RULE_USAGE must be applicable to one and only one CIELEMENT (in arc)
Each TAGGED_VALUE must be in the context of one and only one CIELEMENT (in arc)
Each UML_DEPENDENCY_CLIENT must be identifying as client one and only one CIELEMENT (in arc)
Each UML_DEPENDENCY_SUPPLIER must be identifying as supplier one and only one CIELEMENT (in arc)
Each USE_CASE_EXTENSION must be invoked at one and only one EXTENSION_POINT

Note:

All properties are displayed and updatable by the user unless indicated otherwise

All reference properties are displayed and transferable unless indicated otherwise

All domains are enforced unless indicated otherwise

All properties and reference properties are defined on this element type unless indicated as inherited from a supertype