I am trying to use JAVA in my Matlab code which I never did.

Dear colleagues,

I try to implement this ThingSpeak-java , but after

    javaaddpath('... Documents\MATLAB\thingspeak-java-master\lib\log4j.jar')
    import org.apache.log4j.*

I do not know what to do next. I cannot use the standard Matlab library for ThingSpeak, because it is not supported by compilator.

Thank you for your help Z.

[Hans Scharler]

ThingSpeak read and write functions are available via the ThingSpeak Support Package on File Exchange or from Add-ons. What do you need to do with the Java library within MATLAB?

[Walter Roberson]

Hans Scharler:

According to the Mathworks documentation, none of the Support Packages can be compiled with MATLAB Compiler. There are Simulink Coder and Embedded Coder support packages for various devices, but nothing that has execution time functionality can be compiled.

[Zdenek Kubin]

Yes, that is the reason why I would like to add Java for ThingSpeak.

[Vinod]

See here for information on compiling functions into a standalone executable:

https://www.mathworks.com/help/mps/ml_code/customizing-the-installer.html

Please contact Technical Support if you have questions about how to do this.

[Walter Roberson]

Vinod, look at https://www.mathworks.com/products/compiler/supported/compiler_support.html

"Support for MATLAB and Toolboxes"

and look at the bottom.

"Any product not listed above is not supported and will not work with the MATLAB Compiler."

Notice that absolutely no Support Packages are listed. Therefore not only are all support packages not supported by MATLAB Compiler, but we are assured that they will not work.

Users do not have time to go around doing extensive testing to find the lurking problem that we are told is there. Not "There might be a needle in this haystack" (unsupported), but "If you can get in the door at all, there is a poison needle in this haystack."

[Vinod]

Thanks for making me aware of that, Walter. I have alerted the documentation team that this may need to be revised.

Answer 1

[Zdenek Kubin]

I really did the test. I added the path and it does not work. Next step, I added the files from the lib but it did not work either.

Answer 2

[Zdenek Kubin]

I wrote to technical support and add this picture

Answer 3

[Zdenek Kubin]

Vinod - thanks. that was the point, I try to add the .m function which is called from matlab. But I have to add.p function from different location. now it works, many thanks