Java2007-02-20
J2EE Application Components
The J2EE runtime environment defines four application component types that a J2EE product must support:
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Java2007-02-20
J2EE Connector Architecture
The Connector architecture is a J2EE SPI that allows resource adapters that support access to Enterprise Information Systems to be plugged in to any J2EE product. The Connector arc
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Introduction to Java
Java is a general-purpose object-oriented programming language developed by Sun Microsystems of USA in 1991. Originally called Oak by James Gosling, one of the inventors of the lan
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Inheritance in Java
Inheritance is the process by which one object acquires the properties of another object. This is important because it supports the concept of inheritance classification. As mentio
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History Of Java
It is always a good practice to know a little bit of history and background of any technology before starting to actually use it. In fact Java has nothing to do with the 'Island Ja
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Entity Bean
Entity bean is persistent object and represents an object view of data stored in permanent storage.
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EJB2007-02-20
EJB is a server side component:
Enterprise Java Beans is a server side component. Enterprise Java
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Steps to develop EJB Environment
To develop Enterprise Java Beans, it consists of four steps they are:
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ENTERPRISE JAVA BEANS
Enterprise Java Bean (EJB) is a Server Component Model for Java and is a specification for creating server side, scalable, transactional, multi-user and secure enterprise level app
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Encapsulation
Encapsulation is the mechanism that binds together code and the data manipulates, and keeps both safe from outside interference and misuse. One way to think about encapsulation is
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ADVANTAGES OF EJB
EJB insulates developers from the underlying middleware, since the only environment an EJB developer sees is the Java environment. It also helps the EJB server/container vendor to
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WebWork 2 is now Apache Struts 2
Apache Struts 2 was originally knows as WebWork 2. WebWork was functioning independantly for many years until recently both Struts and Webwork communities joined hands to create St
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