Bean manipulation and the BeanWrapper

从spring reference 中摘过来的哦。
Company.java

public class Company {
	private String name;
	private Employee managingDirector;

	public String getName() {
		return this.name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public Employee getManagingDirector() {
		return this.managingDirector;
	}

	public void setManagingDirector(Employee managingDirector) {
		this.managingDirector = managingDirector;
	}
}

public class Employee {
	private String name;
	private float salary;

	public String getName() {
		return this.name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public float getSalary() {
		return salary;
	}

	public void setSalary(float salary) {
		this.salary = salary;
	}
}

import org.springframework.beans.BeanWrapper;
import org.springframework.beans.BeanWrapperImpl;
import org.springframework.beans.PropertyValue;


public class Test {
	public static void  main(String []  args ){
		BeanWrapper company = new BeanWrapperImpl(new Company());
		// setting the company name..
		company.setPropertyValue("name", "Some Company Inc.");
		// ... can also be done like this:
		PropertyValue value = new PropertyValue("name", "Some Company Inc.");
		company.setPropertyValue(value);
		// ok, let's create the director and tie it to the company:
		BeanWrapper jim =new BeanWrapperImpl(new Employee());
		jim.setPropertyValue("name", "Jim Stravinsky");
		company.setPropertyValue("managingDirector", jim.getWrappedInstance());
		// retrieving the salary of the managingDirector through the company
		Float salary = (Float) company.getPropertyValue("managingDirector.salary");
	}
}

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