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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:
Type casting defines treating a variable of one type as though it is another type. When up casting primitives as given below from left to right, automatic conversion happens. Bu
Need the following code in double var instead of integer. import javax.swing.*; public class arrayVar { public static void main (String[] args) //This is our main method prompt
Kik Messenger is a plan mobile messenger like Skype. It's available on each major smart phone for Android and Iphone. Here is the entire process: Could be able to add multipl
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Specifically, you'll create a program that will hold minutes worked and assign a value. Calculate the value into hours and minutes. Display the result as shown in Figure 2. Reme
Are constructors inherited ? Can a subclass call the parent class constructor and When?
what is an Interface?
How to Returning Multiple Values From Methods ? It is not probable to return more than one value from techniques. You cannot, for example, return the licensePlate, speed and m
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Write a programme to create a webpage that prints the name of the STUDENT database in Wide Latin font and set the subtitle with description of the STUDENT to the screen. Set the pa
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