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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.
i want the program
1. Which of the following are not valid Java identifiers, and why? (a) wolVes (b) United(there is only one) (c) 87 (d) 5 3 (e) Real ale (f) isFound?by 2. A class Television
For what purposes FTP is used in networks? FTP is known as file transfer protocol it is basically used to download or upload files / data to a remote computer.
Explain The Methods of java.lang.Object? java.lang.Object gives a number of methods that are general to all objects. toString() is the most general such method. Because the def
Exercise 1) Lets start by query example in SPARQL: QUERY: What are the school's names that belong to the "local authority district" 00AA? NOTE 1: "Authority districts" divide UK i
n this problem you are given a board in which some of the elements are placed as shown in diagram below. Each element represents a color. Fill the other elements in the board, such
My name is Myers, the project director of an online business that is scheduled to commence this summer in Nigeria. We are in the process of recruiting members to the project team a
have some assignments and i want help with them. thanks
Java SDK is not so comfortable with people used to command line interpreter. IDEs contain compilers, editors, debugging facilities, drag and drop methods, etc. This compiler strive
What are Trojan Horses? Trojan Horses are unlike viruses usually they are stand-alone programs. The look such as what they are not. They appear to be something harmless and int
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