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EJB elements operate inside a container environment and rely heavily on the container to give security. The four key services needed for the security are:
1. Identification: In Java security APIs this identifier is define as a principal.
2. Authentication: To show the identity one must present the credentials in the form of password, digital certificate, swipe card, finger prints etc.
3. Authorization (Access Control): Every secured system should limit access to particular users. The common route to enforce access control is by maintaining security privileges and roles.
4. Data Confidentiality: This is performed by encryption of some sort. It is no good to shield your data by authentication if someone may read the password.
The EJB specification services itself exclusively with authorization (access control). An application using EJB may specify in an abstract (declarative) and portable way that is allowed to access business functions. The EJB container accepts the following actions:
String is immutable in java : you can't change a string object but can replace it by creating a new object instance. Creating a new instance is rather expensive. //Non ef
WHY WE USE JAVA IN PROGRAMMING INSTEAD OF OTHER PROGRAMMING LANGUAGE
Luminous Jewels - The Polishing Game Byteland county is very famous for luminous jewels. Luminous jewels are used in making beautiful necklaces. A necklace consists of various lum
You are part of a team creating a system to keep track of computer science books that a publisher is producing. Create a UML class diagram for a "computer science book". You must h
Purpose Demonstrate your ability to ability to use Java data and control structures. Draw with the aid of conditionals and loops. Background Thought A note on comments:
Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can b
Need Simple Desktop Software I am seeking a software that can do the subsequent: 1. Check position for a URL in Google, Yahoo, Bing. 2. Check position for a YouTube video
I am having an combox box and values are retrieved from the database having inputs and labels i want to created the dynamic form accroding to user input on combox box values
Write a Java Applet which will draw a face on applet as follows: b) Modify the program now by adding two Buttons (Java version of ActiveX Control) named Smily Fac
.java coding for linear programming
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