How to customize Activity Type in Java

The Activity Type defaults to method name, with the first letter of the method name capitalized, and can be customized using namePrefix() or {ActivityMethod.name()} to ensure they are distinct.

In the following example, the Activity Type defaults to ComposeGreeting.

@ActivityInterface
public interface GreetingActivities {
    @ActivityMethod
    String composeGreeting(String greeting, String language);
}

To overwrite this default naming and assign a custom Activity Type, use the @ActivityMethod annotation with the name parameter. In the following example, the Activity Type is set to "greet".

@ActivityInterface
public interface GreetingActivities {
    @ActivityMethod(name = "greet")
    String composeGreeting(String greeting, String language);
}

You can also define a prefix for all of your Activity Types using the namePrefix parameter with the @ActivityInterface annotation. The following example shows a namePrefix parameter applied to the @ActivityInterface, and two Activity methods, of which one is defined using the @ActivityMethod annotation.

@ActivityInterface(namePrefix = "A_")
Public interface GreetingActivities {
    String sendGreeting(String input);

  @ActivityMethod(name = "abc")
  String composeGreeting(String greeting, String language);
}

In this example, the Activity type for the first method is set to A_SendGreeting. The Activity type for the method annotated with @ActivityMethod is set to A_abc.