Unable to create reusable Job similar to reusable transformation ...End less loop err

Hi,
We are implementing restartability from point of failure by creating touch files.
But as these steps are repeating I thought of creating a common wrapper job which accepts
job/transorfmation path name,job/transformation name as paramters and carrying out the
if then else with the files.
Assume that I have a master job J1 and it calls a child job J2 which has two child jobs J3 and J4
and I am calling J2,J3 and J4 using this wrapper job. But the problem is
I am getting endless loop error when I run master job as it says the say wrapper job is calling
itself.
Is it possible to use a reusable job just as we use transformation.
Please let me know it...
Creating if then else file exist condition for each of the job is tedious so I thought to create a single
job and call it.
The reason to create a single wrapper job was that it could check the file existance and also it call the transformations
or job from it
Please help...

Regards,
Pramod.