[FIXED] Spring Batch Bean Scope to convert Legacy Application

Issue

We have a legacy normal java application with below architectural flow

Facade ----> Corba remote IIOP Connection --> ServiceCommands

Above architecture we wants to convert as SpringBeans(Spring Boot) and call from MVCController and expose as RESTAPI

MVCController ---> Facade -->Corba Connection -->ServiceCommands

Please advise what is the Bean scope to be used for each layer and best architecture to be followed

1. Facade class Bean - Scope value="session"
2. CorbaConnection Class bean Scope value="session"
3. ServiceClass bean Scope value="singleton"

Solution

We have solved the issue by created a Corba connection Pool and make each connection from the pool is a Spring bean with scope "Session". Every session request to corba will be in Proxy mode and commit when the @service finishes. All the properties of pools has been added to maintain idle time and re-connection and return back to the pool after the service finishes. Service and Facade remains singleton bean. Thanks team for the support again to provide idea hints from your experiences.

Answered By - Rakesh