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Handle various observers in different ways

 
Jeyaganeshan Jeyatharsini
Greenhorn
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For example I have an Observable and 2 various obeserver. I need to pass two different type of object to them. How can I use Observer-Observable design pattern in this context? Or Do I need to go for some other ways? If so what's it?
 
Stephan van Hulst
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In my opinion it's best not to use Observable and Observer at all, because Observable should have been an interface, and they are not strongly typed.

Instead, write a listener interface for each event that you want to listen for. The class that you want to observe should provide methods that can add and remove listeners for a specific event.

Maybe you can explain a bit more what the different types of objects are that you want to pass around?
 
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