Excluding a bean from autowiring in spring.

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Excluding a bean from autowiring in spring.
Posted on: August 27, 2010 at 12:00 AM

In this tutorial you will learn how to exclude a bean from autowiring in spring.

Excluding a bean from autowiring

In this tuorial you will see how to exclude bean from autowiring. The autowire-candidate attribute is set in the <bean/> element and when it is set to false the container excludes that specific bean from autowiring.

College.java


package spring.exclude.autwiring;



import org.springframework.beans.factory.annotation.Autowired;



public class College {



  private Student student1;

  private String registration;

  private String year;



  @Autowired

  public void setStudent1(Student student) {

    this.student1 = student;

  }



  public String getRegistration() {

    return registration;

  }



  public void setRegistration(String registration) {

    this.registration = registration;

  }



  public String getYear() {

    return year;

  }



  public void setYear(String year) {

    this.year = year;

  }



  @Override

  public String toString() {

    return "College [registration=" 

	+ registration + ", Student="

        + student1 + ",year=" + year + "]";

  }



}

Student.java


package spring.exclude.autwiring;



public class Student {

  private String age;

  private String name;

  private String address;



  public String getAge() {

    return age;

  }



  public void setAge(String age) {

    this.age = age;

  }



  public String getName() {

    return name;

  }



  public void setName(String name) {

    this.name = name;

  }



  public String getAddress() {

    return address;

  }



  public void setAddress(String address) {

    this.address = address;

  }



  @Override

  public String toString() {

    return "Student [name=" + name + ", age=" + age +

	 ",address=" + address

        + "]";

  }



}

AutowireMain.java


package spring.exclude.autwiring;



import org.springframework.beans.factory.BeanFactory;

import org.springframework.context.support.ClassPathXmlApplicationContext;



public class AutowireMain {

  public static void main(String[] args) {

    BeanFactory beanfactory = new ClassPathXmlApplicationContext(

        "context.xml");

    College coll = (College) beanfactory.getBean("college5");

    System.out.println(coll);

  }

}

context.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-2.5.xsd">

 

	<!-- exclude auto-Wiring -->



<bean id="college5" 

	class="spring.exclude.autwiring.College" autowire-candidate="false">

    <property name="registration" value="BL001" />

    <property name="year" value="2001" />

</bean>



<bean id="student5" class="spring.exclude.autwiring.Student"  >

  <property name="address" value="Delhi" />

  <property name="age" value="22" />

  <property name="name" value="Raj" />

</bean>  



<!-- End -->



</beans>

When you run this application it will display output as shown below:

College [registration=BL001, Student=null,year=2001]

Download this example code

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