Spring Bean Dependency

File Name: dependency.xml


File Name: Dependency.java

import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.core.io.ClassPathResource;


public class Dependency {
  public static void main(String[] args) {
       XmlBeanFactory bf = new XmlBeanFactory(new ClassPathResource("dependency.xml"));

       B b = (B) bf.getBean("b");
       A a = (A) bf.getBean("a");
       System.out.println(a);
       System.out.println(b);
   }
}

final class Shared {
   private static Object value = null;
   private Shared() {

   }

   public synchronized static void setValue(Object o) {
       value = o;
   }

   public static Object getValue() {
       return value;
   }
 }

class A 
{
  public A() 
  {
      Shared.setValue("Undetermined");
  }

  @Override
  public String toString() {
      final StringBuilder sb = new StringBuilder();
      sb.append("A");
      sb.append("{}");
      sb.append("Shared.getValue()=").append(Shared.getValue()).append("}");
      return sb.toString();
  }
}

class B 
{
  public B() 
  {
      Shared.setValue("Completed");
  }

  @Override
  public String toString() {
      final StringBuilder sb = new StringBuilder();
      sb.append("B");
      sb.append("{}");
      sb.append("Shared.getValue()=").append(Shared.getValue()).append("}");
      return sb.toString();
  }
}