Hi
Can any guide me , where to use Single Design pattern in Java Based Applications
Should i use Singleton Pattern in the following situations
1)RMI Server
2)Controller Classes ( MVC) invoked by Servlet
3)Database cashing /handling classes
Please suggest other suitable places also
Thanks in Advance
Hii
Typical uses of a singleton pattern are in those cases where you have to have a single instance of a class.For example if u have an RMI based application and the client needs to perform a RMI lookup(for the URL etc)in that case for a particular user you wud like to have just a single instance for the lookup.
In case of controller classes invoked by the servlet you would typically not want a Singleton as multiple instances of the servlet might require to use a controller object.As the request parameters would be different for each servlet instance,you would need a controller object for each of them.
