Connector to update variable

Submitted by tcarmo20 on Fri, 12/30/2016 - 17:13
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Hi!
I'm having a hard time understanding how to create connectors. I want to create one that receives a value (a date) stored in the bdm and updates the value of a process or task variable with that received value.
Any hints?
Thanks in advance!

Connector
1 answer

Submitted by Lionel Palacin on Tue, 01/03/2017 - 10:47
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This one is the BEST answer!

Hi,

The best starting point is the documentation for that.

You can see a connector as a Java method executed at a specific moment in the process lifecycle that receive a set of inputs and return a result.

In your case, I think you should take a look to the concept of Operation which seems to suit your needs better.

Cheers.

Comments

Submitted by tcarmo20 on Tue, 01/03/2017 - 12:47

Thanks Lionel.
I understood everything (I think) till the point of implementing the Java class.
In the Java class, as per the documentation, I implemented the Connector class. Then, in the execute method, I simply wrote:

parameters.put("Something", 1);
return parameters;

(parameters is a Map<String,Object>) and I didn't do anything else besides setting the input parameters (this.parameters = parameters).

But the variable taking the value returned by the connector still has null as it's value. Shouldn't it have the String "Something" as the value?

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Submitted by Lionel Palacin on Tue, 01/03/2017 - 13:49

In the executeBusinessLogic method, you should call the method setResult(result) to set the output of the connector.

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Submitted by tcarmo20 on Tue, 01/03/2017 - 17:46

Thank you very much! I am now able to update a variable value!
Now I have another question..How can I pass an input to the connector? I'm asking this because the method setInputParameters only accepts a Map..I would like it to receive, for example, a String.
How can I pass, well, something, to the connector, and have that something be a string?

If it helps, I want to do the following:

I want to change the expected end date of a task. For that I want to make a connector that receives the expected end date (I don't exactly know how I'm going to obtain it, but i'll figure it out ;) ), changes it to something else (for example to working days), and returns that changed date, which I will than apply to the task. Basically, that's it ;)

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