You can also use plain java RMI. quite easy and simple method.
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Joined: Jul 30, 2010
It is on the same JVM.
Suppose there are two modules A and B and I want to send notification to B from A.
one way is to get the reference of B in A and invoke B's method but that is not the right
approach because i want to keep it generic and do not want to add any dependecies and more over
module B acts as pluggable component which may or may not be there.
Is there other approach for this or any design pattern which can be helpful?
Let A have a register method that accepts some sort of subscriber interface S (also known as a listener). A will keep track of a list of these subscribers.
When a change happens, A will then call the appropriate method in S of each subscriber.
B simply implements S, or has a helper class (tip: anonymous local class) that implements S and registers itself (or it's helper class) through A's register method.
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