Large Jbpm Variables Slow System Down

[dleerob]

Hi,

My workflow system has the ability to attach a file. This file is streamed into a byte[], and then set as a variable on a task instance.
Lets say I attach a file of about 2MB (or more), the system is quite slow when calling taskInstance.getVariablesLocally(), which returns a Map of variables. This must be due to the fact that the fairly large byte[] needs to be loaded. Does anyone know of a way to speed this up? Perhaps somehow not loading byte[] variables, or variables over a certain size. Then somehow only retrieve those large variable when it is actually required. I need to be aware that they exist though, which is why im using taskInstance.getVariablesLocally(), so I have the map of all available variables.

[olivier_debels]

You can create your custom variable instance.

- the getObject() can return a lazy object (not filled in)
- once you touch this you do the bulk of work.

[kukeltje]

or store data in your domain model and not in jBPM

[dleerob]

Thanks to both of you for the suggestions.
I ended up storing the data in my domain model, and used a jpbm variable string to reference it.

[kukeltje]

exactely like I always do it...