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Session Bean: is a non-persistent object that provides some business logic running on the server. Session beans do not provide system break down. There are two kinds of session beans
1. Stateless session beans
2. Stateful session beans
Entity Bean: is a persistent object that presents object views of the data, generally a row in a database. They have the primary key as a unique key identifier. Multiple EJB clients can give each entity bean. Entity beans may provide system shutdowns. Entity beans can have two kinds of persistence
1. Container-Managed Persistence (CMP) - The container is responsible for providing the bean's state.
2. Bean-Managed Persistence (BMP) - The entity bean is responsible for giving its own state.
Message-driven Bean: is added with the Java Message Service (JMS) to give the ability to react as a message consumer and perform asynchronous processing between the message producer and the server.
A device for validating the data a user inputs to a JavaServer Faces UI component.
Java Server Pages (JSP) is a platform independent presentation layer technology that comes with SUN s J2EE platform. JSPs are normal HTML pages with Java code pieces embedded in th
In order to provide portable and reliable EJB elements, the following restrictions apply to EJB code implementation: 1. Avoid using static non-final fields. Defin
Implement relationship using a java program. Assume each course has a course title, code, subject and number of credits while each student has a name, registration number, list of
You are asked to write a Java program to calculate the commercial value of the stamps owned by a philatelist. Each philatelist has a name and a collection of stamps. The stamps can
The following set of short questions will focus on getting you familiar with JavaScript functions. All functions and testing should appear in a single XHTML 1.0 Strict page. All
Object Relational Mapping , its a tool for transaction management that requires to be integrated with Spring, Struts etc.Eg : Hibernate, i Batis,JDO etc
List the keywords which are used in java 1.1? The list of keywords which are used in java 1.1 are given below: Keyword Purpose boole
Draw a 5 inch square on the screen using pseudocode
Question: (a) Explain the event handling mechanism using a 'JComboBox' as example. Your answer must clearly indicate the event source, event object and event listener. Also
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