Java BeanUtils Overview - Java Bean Utils

What is Java BeanUtils Overview?


The Java BeanUtils are the components of the Apache Commons which are derived from JavaAPI and presents component architecture for the Java language. The Java BeanUtils layout patterns uses software classes that helps to get and set the property values on Java classes for retrieving and defining the bean properties.

The package org.apache.commons.beanutils contains tool called introspection that allows the use of getting and setting property values on Java classes and show them in a visual manner in the development tools.

JavaBeans Characteristics

The below listed are important characteristics of JavaBeans which are useful in the development structure:

  • The class have to be public and gives a public constructor with no arguments. It allows tools and applications to create new times of the bean dynamically, with out knowing what type of Java class name will be used as proven below:

  • The constructor which does not have arguments whose bean's behavior can be configured separately from its instantiation. this may be completed through the use of properties of the bean and also used to modify its behavior or information which are displayed by using the bean.
  • The bean property contains setter and getter methods which are used to access the property values. The design pattern for these properties can be specified through using the set or get prefix for the property names along with the first character capitalized by using the JavaBeans specification. for example, you may use setter and getter methods for the properties first_name and last_name as shown below:

  • If there are getter and setter techniques for the assets names, then the getter should match the setter datatype. In JavaBean specification, you can have more than one setter with same name, but with unique property types.
  • There is no need to define the getter and setter methods for every property. in the above code, there's no setter method for fullName property and it is only a read only property.
  • You could create a JavaBean in which there is no match for naming pattern through using the getter and setter techniques. The JavaBean support classes in the Java language and BeanUtils package to specify the assets method names in the BeanInfo class along with the bean class.
  • The JavaBeans specification presents design patterns for event listeners, combines JavaBeans into component hierarchies and other useful features of the BeanUtils package.

External Dependencies

You can use the following external dependencies for the commons-beanutilspackage:

  • Logging Package
  • Collections Package

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