This week I spent some time on the architectural of Infinispan.
From the doc "Architectural Overview", it said:
The actual logic of a given command, for example a ReplaceCommand, is encapsulated in the command's perform() method.
I thought the operations on datacontainer are done is the command's perform() method.
But when I saw the source, these stuffs are done in the interceptor, actually the EntryWrappingInterceptor，
and the perfom method hardly do nothing, except processing the return value.
What I want to know is, is that the design to operating datacontainer in interceptor,
or it's just from jboss cache because infinispan is not the virgin project.
