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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:
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Inheritance - is the inclusion of state and behavior of a base class in a derived class so that they are accessible in that derived class. The key benefit of Inheritance is that
I need a DCS (Source code and JAR) to process packets from a cheap chinese GPS TK110, the unit is already communicating with the server but is not parsing. So I need someone with e
Explain what is Local Variable ? Declaring variables (using the var keyword) inside a function forms them local. They are available only inside the function and hold no meaning
1. Arrays and working with arrays
I want Android application with motion detection Project Description: We need to develop a simple application for android which uses motion detection libraries from open sour
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what is java
Java is increasingly used for middleware applications to communicate among Server and clients. Java has features like multithreading, portability and networking capabilities. Chang
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