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component model and comnponent architecture

 
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Might be a silly questions
what is component model?
What is a component based architecture?
can we consider all java objects as a components?
whats the difference between java bean component model and EJB component model?
Sridhar
 
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A component is a physical and replaceable part of a system that conforms to and provide a set of interfaces.
It could be anything from a servlet, JSP, JavaBeans to an EJB.
Multi-tiers architectures are component based architectures.
-Chris
 
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http://www.advisor.com/Articles.nsf/aid/ALLEP01
Component-Based Architectures for Internet Systems
Article by Paul Allen
Also see Enterprise JavaBeans, Second Edition
by Richard Monson-Haefel
1.1.2 Server-Side Components
In Jaworski's mock exam, he says:
What is the difference between a component and an object?
A component is an object that has been created, initialized, and serialized. A component may be used by deserializing it.
 
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