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Bean Manipulation | BeanWrapper Spring Example

By Arvind Rai, July 12, 2022
On this page we will learn using Spring BeanWrapper interface.
1. The Spring BeanWrapper is an interface and normally it is not used directly. It is used by BeanFactory and DataBinder. It provides operations to analyze and manipulate standard JavaBeans.
2. The BeanWrapper manipulates values of JavaBeans. It sets and gets values from JavaBeans by the method setPropertyValue and getPropertyValue respectively.



Example

SpringDemo.java
package com.concretepage;
import org.springframework.beans.BeanWrapper;
import org.springframework.beans.BeanWrapperImpl;
public class SpringDemo {
   public static void main(String... args) {
	   BeanWrapper employee = new BeanWrapperImpl(new Employee());
	   employee.setPropertyValue("empName","Ram");
	   employee.setPropertyValue("age","21");
	   BeanWrapper college = new BeanWrapperImpl(new College());
	   college.setPropertyValue("name", "SSIC");
	   college.setPropertyValue("director", employee.getWrappedInstance());
	   String name = (String)college.getPropertyValue("director.empName");
	   System.out.println(name);
   } 
} 
College.java
package com.concretepage;
public class College {
	private String name;
	private Employee director;
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public Employee getDirector() {
		return director;
	}
	public void setDirector(Employee director) {
		this.director = director;
	}
} 
Employee.java
package com.concretepage;
public class Employee {
	private String empName;
	private int age;
	public String getEmpName() {
		return empName;
	}
	public void setEmpName(String empName) {
		this.empName = empName;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
} 

Reference

Interface BeanWrapper

Download Source Code

POSTED BY
ARVIND RAI
ARVIND RAI










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