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1. What is J2EE?
J2EE is an environment for developing and deploying
enterprise applications. The J2EE platform consists of
a set of services, application programming interfaces
(APIs), and protocols that provide the functionality
for developing multitiered, web-based applications.
2. What is the J2EE module?
A J2EE module consists of one or more J2EE components
for the same container type and one component
deployment descriptor of that type.
3. What are the components of J2EE application?
A J2EE component is a self-contained functional
software unit that is assembled into a J2EE
application with its related classes and files and
communicates with other components. The J2EE
specification defines the following J2EE components:
Application clients and applets are client components.
Java Servlet and JavaServer PagesTM (JSPTM) technology
components are web components.
Enterprise JavaBeansTM (EJBTM) components (enterprise
beans) are business components.
Resource adapter components provided by EIS and tool
vendors.
4. What are the four types of J2EE modules?
1. Application client module
2. Web module
3. Enterprise JavaBeans module
4. Resource adapter module
5. What does application client module contain?
The application client module contains:
--class files,
--an application client deployment descriptoor.
Application client modules are packaged as JAR files
with a .jar extension.
11. What is "application assembler"
A person who combines J2EE components and modules into
deployable application units.
12. What is "application client"
A first-tier J2EE client component that executes in
its own Java virtual machine. Application clients have
access to some J2EE platform APIs.
13. What is "application client container"
A container that supports application client
components.
14. What is "application client module"
A software unit that consists of one or more classes
and an application client deployment descriptor.
15. What is "application component provider"
A vendor that provides the Java classes that implement
components' methods, JSP page definitions, and any
required deployment descriptors.
16. What is "application configuration resource file"
An XML file used to configure resources for a
JavaServer Faces application, to define navigation
rules for the application, and to register converters,
validators, listeners, renderers, and components with
the application.
17. What is "archiving"
The process of saving the state of an object and
restoring it.
18. What is "asant"
A Java-based build tool that can be extended using
Java classes. The configuration files are XML-based,
calling out a target tree where various tasks get
executed.
19. What is "attribute"What is "asant"
A qualifier on an XML tag that provides additional
information.
20. What is authentication ?
The process that verifies the identity of a user,
device, or other entity in a computer system, usually
as a prerequisite to allowing access to resources in a
system. The Java servlet specification requires three
types of authentication-basic, form-based, and
mutual-and supports digest authentication.
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| Author: Prasad 18 May 2008 | Member Level: Gold Points : 2 |
Hi Thanks for your guide and useful informations
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| Author: Vidya 22 May 2008 | Member Level: Diamond Points : 2 |
useful article
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| Author: ramya 26 May 2008 | Member Level: Gold Points : 2 |
thankyou guys for your responses
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| Author: Abdul Sathar 26 May 2008 | Member Level: Gold Points : 2 |
very nice article
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| Author: Shanthi M 29 May 2008 | Member Level: Diamond Points : 2 |
Thank you for giving this article.
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