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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:
two different object may have chance to have same behavier but property must be different why?
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#question)i) devising ii) validating and iii) testing of algorithms...
PART1: Write a class with the header public class OrderedPair > implements Comparable > instance variables private Key x private Key y constructor publicOrd
Explain the Polymorphism principle. Polymorphism can be referred as one name many forms. It's the ability of methods to behave differently, relying upon the object who is calli
Don''t know how to write this...can anyone help me?
I need the five methods public class Ex1Program { public void start() { // Step 1. Declare and construct an array of 19 Movie objects (call the array films)
It is a distinct type of loop, used to iterate through the properties of an object or the elements of an array. For instance assume the following statement that loops through th
WHY WE USE JAVA IN PROGRAMMING INSTEAD OF OTHER PROGRAMMING LANGUAGE
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