java code for Bean Init Method

/*
Pro Spring
By Rob Harrop
Jan Machacek
ISBN: 1-59059-461-4
Publisher: Apress
*/



///////////////////////////////////////////////////////////////////////////////////////
//File: initMethod.xml




Joe Yin


100




100




Joe Yin




///////////////////////////////////////////////////////////////////////////////////////
import org.springframework.beans.factory.BeanCreationException;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.core.io.FileSystemResource;

public class SimpleBean {

private static final String DEFAULT_NAME = "Luke Skywalker";

private String name = null;

private int age = Integer.MIN_VALUE;

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

public void setAge(int age) {
this.age = age;
}

public void init() {
System.out.println("Initializing bean");

if (name == null) {
System.out.println("Using default name");
name = DEFAULT_NAME;
}

if (age == Integer.MIN_VALUE) {
throw new IllegalArgumentException(
"You must set the age property of any beans of type " + SimpleBean.class);
}
}

public String toString() {
return "Name: " + name + "\nAge: " + age;
}

public static void main(String[] args) {
BeanFactory factory = new XmlBeanFactory(new FileSystemResource(
"build/initMethod.xml"));

SimpleBean simpleBean1 = getBean("simpleBean1", factory);
SimpleBean simpleBean2 = getBean("simpleBean2", factory);
SimpleBean simpleBean3 = getBean("simpleBean3", factory);
}

private static SimpleBean getBean(String beanName, BeanFactory factory) {
try {
SimpleBean bean =(SimpleBean) factory.getBean(beanName);
System.out.println(bean);
return bean;
} catch (BeanCreationException ex) {
System.out.println("An error occured in bean configuration: "
+ ex.getMessage());
return null;
}
}

}