Java – real world example of applying command patterns

Command pattern can be used to implement transaction behavior (and undo)

Solution

In one of our projects, we have the following requirements:

>Create record in dB. > Call the service to update relevant records. > Call another service to log in the ticket

To execute in a transactional manner, each operation is implemented as a command with an undo operation At the end of each step, the command is pushed onto the stack If the operation fails at a certain step, we pop up the command from the stack and call the undo operation on each pop-up command The undo action for each step is defined in the command implementation to reverse the earlier command execute().

I hope this will help