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EJB 3 Developer Guide

EJB 3 Developer Guide

By : Michael Sikora
4.2 (6)
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EJB 3 Developer Guide

EJB 3 Developer Guide

4.2 (6)
By: Michael Sikora

Overview of this book

Table of Contents (18 chapters)
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EJB 3 Developer Guide
Credits
About the Author
About the Reviewers
Preface
1
Annotations and Their Corresponding Packages

Java EE Container Security


There are two aspects covered by Java EE container security: authentication and authorization. Authentication is the process of verifying that users are who they claim to be. Typically this is performed by the user providing credentials such as a password. Authorization, or access control, is the process of restricting operations to specific users or categories of users. The EJB specification provides two kinds of authorization: declarative and programmatic, as we shall see later in this chapter.

The Java EE security model introduces a few concepts common to both authentication and authorization. A principal is an entity that we wish to authenticate. The format of a principal is application-specific but an example is a username. A role is a logical grouping of principals. For example, we can have administrator, manager, and employee roles. The scope over which a common security policy applies is known as a security domain, or realm.

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EJB 3 Developer Guide
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