Set job on hold by script

Hello,

I want to set a certain cycle job on hold and release it by script because the action should take place in the night (no office hours).

Is this possible? I cannot use the Jobgroup-End-Option because I don't know before when the maintenance will be started.

I think to schedule a job for the hold-time, which has a parameter "Job". The parameter will be filled by choosing a Jobdefinition from the "Query filter All Jobdefinitons".

How I get the Job I want to hold from the Jobdefinition by script?

...

JobDefinition jd = jcsSession.getJobDefinitionByName(strJobName);

Long ID = jd.getUniqueId();

??? how I get the Job j from the UniqueId  ???

j.hold();

Thanks for your help!

Best regards,

Dana Ullrich