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This article will explain in detail what EA means in drawing UML activity diagrams. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

Invoke behavior Action (CallBehaviorAction)

CallBehaviorAction is an action that invokes an action directly, rather than invoking a behavior property that causes that behavior to be called. The parameter value of the action is valid for the parameter value of the invoked behavior. If the call is synchronous, the calling action waits for the called behavior to end and the result returns to the output pin; if the call is asynchronous, the calling action returns directly without waiting for the result.

There are two points in this paragraph that need to be added. One is that the behavior is called due to the characteristic of the behavior, which refers to the situation in which the method is triggered by the calling operation, or the behavior is triggered by the signal. Second, the blue word part, which is not in the original text, has been added with reference to the latest English version.

The other parts should be easier to understand.

Representation method

The following is the representation of CallBehaviorAction in the middle of the event.

Pay attention to the small fork in the lower right corner.

Setting method

The setting method of CallBehaviorAction is basically the same as that of CallOperationAction mentioned earlier, and only the difference is explained here.

Select CallBehavior for Action type.

CallBehaviorAction does not operate on objects, so there are no target pins for passing operands.

When you select Behaivor through the Call classification in the properties dialog box, you can still select the method of the class, but only the static method should be selected. In addition, you can choose Activity,Interaction and StateMachine. Interaction said in the sequence diagram that Activity is part of the ongoing activity diagram, and StateMachine will explain it in a later article.

The difference between and CallOperationAction

Take C++ as an example: CallOperaitonAction calls the non-static methods of the class, actions or triggers the behavior of the object by signals, while CallBehaviorAction calls the static methods or general functions of the class.

This is the end of the article on "what is the meaning of CallBehaviorAction in EA drawing UML activity diagram". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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