This Post deal with one of the fundamental concepts about Object Oriented which is called Encapsulation. If you want to aspire to a good Object Oriented Design that’s one of those “rules” to follow . The Encapsulation is an arguments to know if you want to overcome with success the Sun Certified Programmer for the Java Platform too. It’s contained in the Objective 5.1 of section 5.

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More and more we need, for several reasons, to integrate the legacy systems with external services. In this post, we only briefly describe some possible integration between client-server legacy systems, with business logic written in PL/SQL, and Java Services. Continue reading →