This example shows how ApplicationContextAware interface can be used to access short-lived scoped bean from a long-lived scoped bean.

Example

A prototype bean

package com.logicbig.example;

import java.time.LocalDateTime;

public class MyPrototypeBean {

  private String dateTimeString = LocalDateTime.now().toString();

  public String getDateTime() {
      return dateTimeString;
  }
}

A singleton bean implementing ApplicationContextAware interface

package com.logicbig.example;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;

public class MySingletonBean implements ApplicationContextAware {

  private ApplicationContext applicationContext;

  @Override
  public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
      this.applicationContext = applicationContext;
  }

  public void showMessage() {
      MyPrototypeBean bean = applicationContext.getBean(MyPrototypeBean.class);
      System.out.println("Hi, the time is " + bean.getDateTime());
  }
}

Main class

package com.logicbig.example;

import org.springframework.beans.factory.config.ConfigurableBeanFactory;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Scope;

@Configuration
public class AppConfig {

  @Bean
  @Scope(ConfigurableBeanFactory.SCOPE_PROTOTYPE)
  public MyPrototypeBean prototypeBean() {
      return new MyPrototypeBean();
  }

  @Bean
  public MySingletonBean singletonBean() {
      return new MySingletonBean();
  }

  public static void main(String[] args) throws InterruptedException {
      AnnotationConfigApplicationContext context =
              new AnnotationConfigApplicationContext(AppConfig.class);
      MySingletonBean bean = context.getBean(MySingletonBean.class);
      bean.showMessage();
      Thread.sleep(1000);

      bean = context.getBean(MySingletonBean.class);
      bean.showMessage();
  }
}

Output

Hi, the time is 2021-05-05T01:40:59.551
Hi, the time is 2021-05-05T01:41:00.563

Example Project

Dependencies and Technologies Used:

• spring-context 6.1.2 (Spring Context)
   Version Compatibility: 3.2.3.RELEASE - 6.1.2Version List
  ×

  Version compatibilities of spring-context with this example:

  • 3.2.3.RELEASE
  • 3.2.4.RELEASE
  • 3.2.5.RELEASE
  • 3.2.6.RELEASE
  • 3.2.7.RELEASE
  • 3.2.8.RELEASE
  • 3.2.9.RELEASE
  • 3.2.10.RELEASE
  • 3.2.11.RELEASE
  • 3.2.12.RELEASE
  • 3.2.13.RELEASE
  • 3.2.14.RELEASE
  • 3.2.15.RELEASE
  • 3.2.16.RELEASE
  • 3.2.17.RELEASE
  • 3.2.18.RELEASE
  • 4.0.0.RELEASE
  • 4.0.1.RELEASE
  • 4.0.2.RELEASE
  • 4.0.3.RELEASE
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  • 4.0.6.RELEASE
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  • 4.1.0.RELEASE
  • 4.1.1.RELEASE
  • 4.1.2.RELEASE
  • 4.1.3.RELEASE
  • 4.1.4.RELEASE
  • 4.1.5.RELEASE
  • 4.1.6.RELEASE
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  • 4.2.6.RELEASE
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  • 5.1.16.RELEASE
  • 5.1.17.RELEASE
  • 5.1.18.RELEASE
  • 5.1.19.RELEASE
  • 5.1.20.RELEASE
  • 5.2.0.RELEASE
  • 5.2.1.RELEASE
  • 5.2.2.RELEASE
  • 5.2.3.RELEASE
  • 5.2.4.RELEASE
  • 5.2.5.RELEASE
  • 5.2.6.RELEASE
  • 5.2.7.RELEASE
  • 5.2.8.RELEASE
  • 5.2.9.RELEASE
  • 5.2.10.RELEASE
  • 5.2.11.RELEASE
  • 5.2.12.RELEASE
  • 5.2.13.RELEASE
  • 5.2.14.RELEASE
  • 5.2.15.RELEASE
  • 5.2.16.RELEASE
  • 5.2.17.RELEASE
  • 5.2.18.RELEASE
  • 5.2.19.RELEASE
  • 5.2.20.RELEASE
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  • 5.3.0
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  • 5.3.26
  • 5.3.27
  • 5.3.28
  • 5.3.29
  • 5.3.30
  • 5.3.31
  Compatible Java Version: 17+
  • 6.0.0
  • 6.0.1
  • 6.0.2
  • 6.0.3
  • 6.0.4
  • 6.0.5
  • 6.0.6
  • 6.0.7
  • 6.0.8
  • 6.0.9
  • 6.0.10
  • 6.0.11
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  • 6.0.13
  • 6.0.14
  • 6.0.15
  • 6.1.0
  • 6.1.1
  • 6.1.2

  Versions in green have been tested.

• JDK 17
• Maven 3.8.1