Monday 27 August 2018

Spring Bean Life Cycle - BeanNameAware Interface | Spring Tutorial | Spring Framework


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Spring Bean Life Cycle - BeanNameAware Interface | Spring Tutorial | Spring Framework


Spring Bean Life Cycle - BeanNameAware Interface | Spring Tutorial | Spring Framework

Spring Bean Life Cycle - BeanNameAware Interface | Spring Tutorial | Spring Framework

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0%20http://maven.apache.org/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.ram.core</groupId>
    <artifactId>SpringDemo</artifactId>
    <packaging>jar</packaging>
    <version>1.0-SNAPSHOT</version>
    <name>SpringDemo</name>
    <url>http://maven.apache.org</url>

    <properties>
        <spring.version>5.0.2.RELEASE</spring.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>

        <!-- Spring 5 dependencies -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>
    </dependencies>
</project>

BeanNameAwareImpl.java

package com.ram.aware;

import org.springframework.beans.factory.BeanNameAware;

public class BeanNameAwareImpl implements BeanNameAware
{

    public void setBeanName(String beanName)
    {
        System.out.println(
                "setBeanName(String beanName) is called by the Spring Container");
        System.out.println("Bean name = " + beanName);

    }

}

applicationContext.xml

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.3.xsd">


    <bean id="beanNameAware" class="com.ram.aware.BeanNameAwareImpl"/>
 
</beans>

App.java

package com.ram.core;

import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.ram.aware.BeanNameAwareImpl;

public class App
{
    public static void main(String[] args)
    {
        ClassPathXmlApplicationContext applicationContext = new ClassPathXmlApplicationContext(
                "applicationContext.xml");

        BeanNameAwareImpl beanNameAwareImpl = applicationContext
                .getBean("beanNameAware", BeanNameAwareImpl.class);

        System.out.println("beanNameAwareImpl = "+beanNameAwareImpl);
        applicationContext.close();
    }
}

Output

Aug 12, 2018 12:10:47 PM org.springframework.context.support.AbstractApplicationContext prepareRefresh
INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@5b37e0d2: startup date [Sun Aug 12 12:10:47 IST 2018]; root of context hierarchy
Aug 12, 2018 12:10:47 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from class path resource [applicationContext.xml]
setBeanName(String beanName) is called by the Spring Container
Bean name = beanNameAware
beanNameAwareImpl = com.ram.aware.BeanNameAwareImpl@5c7fa833
Aug 12, 2018 12:10:47 PM org.springframework.context.support.AbstractApplicationContext doClose
INFO: Closing org.springframework.context.support.ClassPathXmlApplicationContext@5b37e0d2: startup date [Sun Aug 12 12:10:47 IST 2018]; root of context hierarchy

Click the below link to download the code:
https://sites.google.com/site/ramj2eev2/java_basics/SpringDemo_BeanNameAware.zip?attredirects=0&d=1

Github Link:
https://github.com/ramram43210/javaee/tree/master/Spring_2018/SpringDemo_BeanNameAware

Bitbucket Link:
https://bitbucket.org/ramram43210/spring/src/d89cccdb22c06b2e0a9adbdbd2c6a120a0f41423/Spring_2018/SpringDemo_BeanNameAware/?at=master

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