Annotation Type Optional


  • @Documented
    @Retention(RUNTIME)
    @Target({METHOD,FIELD,PARAMETER})
    public @interface Optional
    Marker annotation indicating that an instance variable or method marked with Inject is not required to be present at run-time. If the service is not present, there will be no error and injection will not be performed.

    Example:

     
          @Inject
          @Optional  
          MyContract myOptionalService;