Optimistic lock

Hi ,

we are facing an issue while migrating the webdynpro from 7.0 to 7.3.

we make use of the optimistic lock in 7.0 by sharing the Jco Client for all our model execution. but unfortunately we do not have the Jco Client sharing across the models available in 7.3.

Is there any way to implement the lock mechanism in 7.3?

Thanks