Spring - Register bean by BeanDefinitionBuilder

BeanDefinitionBuilderExample.java

public class BeanDefinitionBuilderExample {

  public static void main (String[] args) {
      DefaultListableBeanFactory beanFactory =
                new DefaultListableBeanFactory();

      BeanDefinitionBuilder b =
                BeanDefinitionBuilder.rootBeanDefinition(MyBean.class)
                                     .addPropertyValue("str", "myStringValue");

      beanFactory.registerBeanDefinition("myBean", b.getBeanDefinition());


      MyBean bean = beanFactory.getBean(MyBean.class);
      bean.doSomething();
  }
}

MyBean.java

public class MyBean {
  private String str;

  public void setStr (String str) {
      this.str = str;
  }

  public void doSomething () {
      System.out.println("from MyBean " + str);
  }
}