How Ajax Works With J2EE And Scripting Languages
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by Anne Catherine
November 12, 2007
Here I am going to discuss the benefits of the Ajax
application using J2EE and scripting and the advantage of using them
Ajax with Java2EE
Ajax, together with J2EE makes
your application accessible to whole J2EE platform stack which also
includes new and updated web services and database access technologies.
You get Servlets, JSP technology, and Java Standard Tag Library (JSTL)
in the stack's web tier. Additionally, JavaServer Faces technology 1.2,
which is a framework for building rich user interfaces (UIs) for web
applications, is also accompanied with these tools. This absolute
combination of Ajax & J2EE provides a sophisticated &
extensible component model to control events, convert and validate
data, and run component state. Moreover, it offers a navigation model
to control page flow and a managed bean facility for binding components
to scoped beans.
JavaServer Faces technology not only offers you
the extra server-side functionality you need for Ajax, but also eases
the addition of Ajax to your application. Rather than embedding the
it inside a Java Server Faces component. The ease of its use enables
you experience all the benefits that the JavaServer Faces component
model provides you.
Even if JSP technology is used without
JavaServer Faces technology, Ajax functionality can still be
encapsulated using custom tags. Together with the rest of the J2EE
platform stack, the JSP and JavaServer Faces technologies endows you
with everything you require for completing the server-side picture of
your Ajax-enabled web application.
Dynamic Languages for Web Application Development
all J2EE components are written in Java programming language, but
irrespective of all the benefits, scripting languages are preferred in
recent years by many application developers. These scripting languages
have been found to allow for more rapid development. When Ajax
functionality is used for more interactive web applications, developers
cannot ignore the importance of the rapid development that scripting
Scripting languages possess a feature of dynamic
typing that promotes rapid development. Because of this feature,
developers find scripting languages more suitable for building rapidly
evolving systems, connecting different components, and extending
existing software components. Additionally, developers realize that
they can often write fewer lines of code while programming with dynamic
languages. Scripting languages don’t require a separate compilation
step, which enables developers to deploy an application without
compiling it, allowing them to manipulate the code while it is running
While developing Ajax-enabled applications,
you also benefit by using the same scripting language on the client and
scripting languages are appropriate for connecting and extending
existing components, it can be of high use for developers who want to
incorporate Ajax to existing applications.
Java2EE and Dynamic Languages Together: A Perfect Application
and Dynamic Languages if used in combination can give a flawless
application as lone use of dynamic languages can create complications
sometimes because the code may not be deciphered by other developers.
In most cases, the code is executed to see what it does and understand
it. Another problem is faced because of absence of compilation step
that results in reduced execution speed as a result of the additional
runtime checks. These errors in the code are otherwise caught at
compilation step while making more robust applications. These problems
highlight the importance of Java programming language.
the best advantage out of both, you can use the Java programming
language for least altered parts of the application, like graphical
user interface (GUI) components, and parts with a performance
bottleneck, such as methods that perform complex calculations or
manipulate huge amounts of data. Scripting can be of best use for
linking these parts of an application.
By this time, you must be
aware of Ajax, its use with J2EE & Scripting languages as well as
the benefits you can enjoy. Next time, we will discuss few negatives
& positives of using Ajax for developing applications.