Class UML 2.4.1::ProtocolTransition
Description:
A protocol transition specifies a legal transition for an operation. Transitions
of protocol state machines have the following information: a pre condition
(guard), on trigger, and a post condition. Every protocol transition is
associated to zero or one operation (referred BehavioralFeature) that belongs
to the context classifier of the protocol state machine.
Direct Superclasses: TransitionDirect Subclasses: Class Precedence List: ProtocolTransition,
Transition,
RedefinableElement,
Namespace,
NamedElement,
ElementProperties:

postCondition :
Constraint (0 1); -- source
ProtocolTransition
preCondition :
Constraint (0 1); -- source
ProtocolTransition
referred :
Operation (0 *); -- source
ProtocolTransition
container :
Region (1 1); -- source
Transition
effect :
Behavior (0 1); -- source
Transition
guard :
Constraint (0 1); -- source
Transition
kind :
TransitionKind (1 1); -- source
Transition
redefinedTransition :
Transition (0 1); -- source
Transition
redefinitionContext :
Classifier (1 1); -- source
Transition
source :
Vertex (1 1); -- source
Transition
target :
Vertex (1 1); -- source
Transition
trigger :
Trigger (0 *); -- source
Transition
isLeaf : Boolean (1 1); -- source
RedefinableElement
redefinedElement :
RedefinableElement (0 *); -- source
RedefinableElement
elementImport :
ElementImport (0 *); -- source
Namespace
importedMember :
PackageableElement (0 *); -- source
Namespace
member :
NamedElement (0 *); -- source
Namespace
ownedMember :
NamedElement (0 *); -- source
Namespace
ownedRule :
Constraint (0 *); -- source
Namespace
packageImport :
PackageImport (0 *); -- source
Namespace
clientDependency :
Dependency (0 *); -- source
NamedElement
name : String (0 1); -- source
NamedElement
nameExpression :
StringExpression (0 1); -- source
NamedElement
namespace :
Namespace (0 1); -- source
NamedElement
qualifiedName : String (0 1); -- source
NamedElement
visibility :
VisibilityKind (0 1); -- source
NamedElement
ownedComment :
Comment (0 *); -- source
Element
ownedElement :
Element (0 *); -- source
Element
owner :
Element (0 1); -- source
ElementConstraints:
Signature: refers_to_operation() : Boolean;
Description: If a protocol transition refers to an operation (i. e. has a call trigger
corresponding to an operation), then that operation should apply to the
context classifier of the state machine of the protocol transition.
Expression: true
Signature: belongs_to_psm() : Boolean;
Description: A protocol transition always belongs to a protocol state machine.
Expression: container.belongsToPSM()
Signature: associated_actions() : Boolean;
Description: A protocol transition never has associated actions.
Expression: effect->isEmpty()
Operations:
No additional operations.
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