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What are java beans?
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What are java beans?
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JavaBeans is a portable, platform-independent component model written in the Java programming language, developed in collaboration with industry leaders. It enables developers to write reusable components once and run them anywhere — benefiting from the platform-independent power of Java technology. JavaBeans acts as a Bridge between proprietary component models and provides a seamless and powerful means for developers to build components that run in ActiveX container applications.
for more info : http://java.sun.com/products/javabeans/faq/faq.general.html
Java Beans enables us to write component software. Components are self-contained and reusable.
JavaBeans are usual Java classes which adhere to certain coding conventions:
1. Implements java.io.Serializable interface
2. Provides no argument constructor
3. Provides getter and setter methods for accessing it’s properties
Java beans is very powerful tool you can use in your servlet/JSP bridge. You can use the servlets to build the bean and can be passed over to the JSP for reading. This provides tight encapsulation of the data while preserving the sanctity of servlets and JSP.
A simple java object becomes a java bean when all of the object’s data fields are Private and are only accessible through methods known as Accessor methods.
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