By: PriyaA Java Bean is a software component that has been designed to be reusable in a variety of different environments. There is no restriction on the capability of a Bean. It may perform a simple function, such as checking the spelling of a document, or a complex function, such as forecasting the performance of a stock portfolio. A Bean may be visible to an end user. One example of this is a button on a graphical user interface. A Bean may also be invisible to a user. Software to decode a stream of multimedia information in real time is an example of this type of building block. Finally, a Bean may be designed to work autonomously on a user's workstation or to work in cooperation with a set of other distributed components. Software to generate a pie chart from a set of data points is an example of a Bean that can execute locally. However, a Bean that provides real-time price information from a stock or commodities exchange would need to work in cooperation with other distributed software to obtain its data.
We will see shortly what specific changes a software developer must make to a class so that it is usable as a Java Bean. However, one of the goals of the Java designers was to make it easy to use this technology. Therefore, the code changes are minimal.
Advantages of Java Beans
A software component architecture provides standard mechanisms to deal with software building blocks. The following list enumerates some of the specific benefits that Java technology provides for a component developer:
- A Bean obtains all the benefits of Java's "write-once, run-anywhere" paradigm.
- The properties, events, and methods of a Bean that are exposed
to an application
builder tool can be controlled.
- A Bean may be designed to operate correctly in different
locales, which makes it
useful in global markets.
- Auxiliary software can be provided to help a person configure a
Bean. This software is
only needed when the design-time parameters for that component are being set. It
does not need to be included in the run-time environment.
- The configuration settings of a Bean can be saved in persistent
storage and restored
at a later time.
- A Bean may register to receive events from other objects and can
generate events that
are sent to other objects.
1. very good post on advantages of java beans. Java beans are sessions that encapsulate many things int
View Tutorial By: pranit patiil at 2017-08-17 17:53:47
2. What do you mean by '...receive events from other objects and can generate events that
View Tutorial By: Thiga at 2016-05-31 08:07:10
3. Can you please tell me what software to be installed to beans programs to run or please send me link
View Tutorial By: Heena Yeole at 2015-03-10 18:05:18
5. very nicely written article i think you have taken it exactly the same from the btech reader i am re
View Tutorial By: jamal at 2012-12-09 20:27:37
6. This says nothing meaningful.
So how having a non-args constructor makes my code reus
View Tutorial By: Andreas at 2012-09-23 23:01:01
I need a java code which I
1 - turn off the computer using a mobile phone
View Tutorial By: HNO11 at 2011-03-26 07:39:24
11. I am very much thankfull to you in providing the concept in such a simple and easily understandable
View Tutorial By: c vijaychandar at 2010-05-05 10:14:59
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