bulk workflow variable read using rungimeService

[kethur]

Hi,

I would like to read all the process variables in one query.  Right now, i am using runtimeService.getVariable() which runs a query for each process instance id.  This is too expensive for my application's performance.

is there a way i can read a particular variable from a bunch of processes in one query?

Thanks,
Raj

[trademak]

For this purpose it's better to use the HistoricVariableInstanceQuery. There you can query on all instances of a variables across tasks and processes.

Best regards,

[kethur]

Hi,

I would like the runtime variables and not Historic ones.  Also, i am using Activiti 5.10 and it does not have this class.  Any other alternative?

Thanks,
Raj

[trademak]

Historic variables also contain the runtime variables so that would make no difference. But in 5.10 this wasn't available yet.
Instead you can use the HistoricDetailQuery in a similar way and that should be available in 5.10.

Best regards,