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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:
Spring comprises of seven modules. They are.. a) The core container b) Spring context c) Spring AOP d) Spring DAO e) Spring ORM f) Spring Web module g) Sprin
how to write a program to assign value of variable age and print if person is major.
Describe life cycle of thread. Threads follow the single flow of control. A thread is execution in a program. The life cycles of threads are listed below: Newborn state: A
pls telme source code for Padovan String
can i have code on this assignment: The code in the main method should do the following: 1. Prompt the user for a string input value for the amount in dollars and store it in a va
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The Struts tag libraries are: ? HTML Tags ? Logic Tags ? Template Tags ? Bean Tags ? Tiles Tags ? Nested Tags
i need help i hav done the gui part of my project and some simple symbols but to display some complex symbols like integration and all but it shud be clear with lower and upper lim
For this assignment you'll create some classes for modeling tickets for a city subway system. The type of system we are modeling has these main features: Stations are grouped in
Describe Inner Classes in java? An inner class is a class whose body is described inside another class, referred to as the top-level class. For instance: public class Queue {
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