B4J Question B4J trap error event in order to save some data ?

[Pietro Pancino]

Hi all,

Is there a way to trapp error before B4J app crashed.
In fact, I need some to save data of the programm in order to restart with last data?

If anyone have an idea...

Actualy i am saving data each minutes, but it's not a good solution for the disk.

 

[Star-Dust]

you can send the log output to a file and capture the error

 

[Pietro Pancino]

Yes but if I send log to output, I will not be able to save data at the moment of the crash, it will be too late...

 

[Daestrum]

You could use a try - catch block if you know roughly where the app may crash.
Put your data saving routine in the catch block.

 

[Star-Dust]

Yes but if I send log to output, I will not be able to save data at the moment of the crash, it will be too late...

I misunderstood the question

 

[aeric]

What could cause the error to occur? network issue?

 

[Chris2]

Can you do what you need to in the Application_Error sub?

Unhandled exceptions

Unhandled exceptions are exceptions that were thrown outside of Try / Catch blocks. Such exceptions cause the process to exit in all cases except of server applications. Starting from B4J v5.0 it is possible to catch such exceptions. This is done with the Application_Error sub (in the Main...

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