Java Question Using @RaisesSynchronousEvents annotation

[agraham]

I think that I am yet again a victim of my own ignorance having forgotten everything I ever learnt about Java with not using it for six years.

Apparently I need to add the @RaisesSynchronousEvents annotation to some methods in my BasicLibIDE library so that it will work with the rapid debugger.

So I did - like this.

    @RaisesSynchronousEvents
   private void raiseuievent(final String eventsub, final Object... args)
   {
       // we need to check the thread we are on at event or call time
       // because we could be newed on main thread and invoked on another
       if (Thread.currentThread() == guithread)
       {
           // use raiseEvent2 to let it run during Activity_Create
           ba.raiseEvent2(this, true, eventsub,false, args);
           return;
       }
       TaskId += 1;
       ba.raiseEventFromDifferentThread(this, this, TaskId, eventsub, false, args);
   }

But this is the result of compiling with SLC, which works fine without the annotations

Simple Library Compiler
Starting step: Compiling Java code.
exists: True
exists2: True
javac 1.8.0_192
C:\Users\Andy\Documents\B4A\Projects\Libraries\BasicLibIDE\src\anywheresoftware\b4a\agraham\basiclibide\BasicLibIDE.java:617: error: cannot find symbol
        @RaisesSynchronousEvents
         ^
  symbol:   class RaisesSynchronousEvents
  location: class BasicLibIDE
1 error

I think that maybe there is an import missing as the RaisesSynchronousEvents annotation is not recognised.

Indications of where the stupidity lies please!

 

[Erel]

Better solution is to change ba.raiseEvent2 to ba.raiseEventFromUI. As a general rule always prefer raiseEventFromUI over the synchronous method unless it is not possible.

 

[agraham]

Thanks, point taken, but this does need to be synchronous and not go through the message queue to keep the response snappy. Any idea why the annotations will not compile?

 

[Erel]

Add this line:

import anywheresoftware.b4a.BA.RaisesSynchronousEvents;

 

[agraham]

Ah! The penny finally dropped Found it

import anywheresoftware.b4a.BA.RaisesSynchronousEvents;

 

[agraham]

Touchee! - we crossed

 

[agraham]

Adding the RaisesSynchronousEvents annotation does not work for me. This must be because it only works if it appears in the XML file and so will not work for hidden methods in a library.

It doesn't really matter for this library as the legacy debugger seems to work OK and I don't anticipate needing it very often anyway.

 

[Erel]

You need to add it to any public method that eventually calls the private method.

Test it with raiseEventFromUI. In most cases it will be fast enough. It will also allow developers to use it with Wait For.

 

[agraham]

Can I put

#RaisesSynchronousEvents: SubThatCanRaiseEvent

in a Code Module the same as in a Class module to identify methods. If so do I need a separate line for each Sub or can I just comma separate them?

 

[agraham]

No I can't Oh well.

 

[Erel]

#RaisesSynchronousEvents: SubThatCanRaiseEvent

This attribute is only relevant for compiled libraries.

 

[agraham]

Thanks for the information Erel. Already using 8.80