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[EOL/ETL/ECL] How to exchange variables [message #1354310]

Wed, 14 May 2014 07:45

Alexander Fülleborn

Messages: 132
Registered: April 2013

Senior Member

Good morning Dimitris,

I would like to do the following: In my Eclipse java plug-in, I set a variable value. Then I call an ECL module, where I change the value of this variable. Finally, I read the changed variable within my plug-in again.

I looked for any examples, but I found only an example where the EOL module creates a plug-in instance and changes variables within this instance ("Example: Creating custom Java tools for Epsilon"). Hence, this is more the "vice versa way".

Would be glad to get hints how to realize my scenario.

Thanks a lot and kind regards, Alex

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Re: [EOL/ETL/ECL] How to exchange variables [message #1354319 is a reply to message #1354310]

Wed, 14 May 2014 07:50

Dimitris Kolovos

Messages: 2163
Registered: July 2009
Location: York, UK

Senior Member

Hi Alex,

<ecl-module>.getContext().getFrameStack().get(<variable-name>) should do the trick.

Cheers,
Dimitris

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Re: [EOL/ETL/ECL] How to exchange variables [message #1354368 is a reply to message #1354319]

Wed, 14 May 2014 08:18

Alexander Fülleborn

Messages: 132
Registered: April 2013

Senior Member

Hi again,

I found the problem and it works fine now!

Thanks a lot, Dimitris!

KR, Alex

~~~
Hi Dimitris,

thanks a lot. Sounds promising... Wink

. However, I have problems with providing the actual parameter value for "Variable".

Example:
String value;
String variable_name = "g_variabletest";
value = module.getContext().getFrameStack().get(variable_name);

I get an error message related to type conversion. I also tried to use the type "Variable", but it does not work neither.

Cheers, Alex

[Updated on: Wed, 14 May 2014 08:50]

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Re: [EOL/ETL/ECL] How to exchange variables [message #1355533 is a reply to message #1354368]

Wed, 14 May 2014 19:31

Alexander Fülleborn

Messages: 132
Registered: April 2013

Senior Member

Hi Dimitris,

I went a step further and wanted to calculate with the variable values in my plug-in. However, I have problems to cast it to Integer values. Do you have an idea how to ideally calculate with the variables in a java environment?

Thanks a lot and kind regards, Alex

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Re: [EOL/ETL/ECL] How to exchange variables [message #1356938 is a reply to message #1355533]

Thu, 15 May 2014 09:38

Dimitris Kolovos

Messages: 2163
Registered: July 2009
Location: York, UK

Senior Member

Hi Alex,

What do you get when you run the following?

System.out.println(module.getContext().getFrameStack().get(variable_name).getClass().getSimpleName());

Cheers,
Dimitris

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Re: [EOL/ETL/ECL] How to exchange variables [message #1372435 is a reply to message #1356938]

Wed, 21 May 2014 20:54

Alexander Fülleborn

Messages: 132
Registered: April 2013

Senior Member

Hi Dimitris,

the output is "Variable". Does this help?

Cheers, Alex

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Re: [EOL/ETL/ECL] How to exchange variables [message #1372463 is a reply to message #1372435]

Wed, 21 May 2014 21:07

Dimitris Kolovos

Messages: 2163
Registered: July 2009
Location: York, UK

Senior Member

Hi Alex,

Does the following return what you expect?

System.out.println(((Variable) module.getContext().getFrameStack().get(variable_name)).getValue());

Cheers,
Dimitris

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Re: [EOL/ETL/ECL] How to exchange variables [message #1374633 is a reply to message #1372463]

Thu, 22 May 2014 18:40

Alexander Fülleborn

Messages: 132
Registered: April 2013

Senior Member

Hi Dimitris,

thanks for your proposal. I get the right value, e.g. '100', now. But how can I calculate with this?

The following works:
Variable v = (Variable) module.getContext().getFrameStack().get(variable_name)).getValue();

But then, it is not possible to do something like:
v = v + 10;

Thanks and kind regards, Alex

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Re: [EOL/ETL/ECL] How to exchange variables [message #1376372 is a reply to message #1374633]

Fri, 23 May 2014 11:34

Dimitris Kolovos

Messages: 2163
Registered: July 2009
Location: York, UK

Senior Member

Hi Alex,

Does the following help?

Variable v = (Variable) module.getContext().getFrameStack().get(variable_name));
Integer value = (Integer) v.getValue();
value = value + 5;

Cheers,
Dimitris

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