christos

[christos89]

How can an Eve agent add data to its State rather than replacing it? If I have two instances of the same agent how can I retrieve both inputs and store them to its State?

I have an Eve agent that add users input in an ArryaList. However, I was getting only the last input and not the entire ArrayList of the previous inputs. Now when I run the method through the Eve interface, I get the following message
"message": "Couldn't instantiate agent for id 'result_Eve1'
What can I do?

Thank you in advance,
Kind regards,
Christos

[ludost]

Hi Christos,

As described on: http://eve.almende.com/implementations/java/services.html#StateService the state acts like a Map<String,Object>. (http://docs.oracle.com/javase/7/docs/api/java/util/Map.html)
This means that you put() data to a specific key. As long as the key is unique, the value will be stored separately from other values. If you put() data to the same key, the new value will overwrite the existing value.

I don't understand your second question. Maybe you can show some code highlighting the issue? The last part states that you try to contact an agent called "result_Eve1", which doesn't exist.