List FactoryBean, Set FactoryBean and Map FactoryBean in Spring

Download It List FactoryBean, Set FactoryBean and Map FactoryBean

We have previously seen how to deal with List, Set and Map type attributes inside a bean class. Further let us venture into having concrete List collection (ArrayList and LinkedList), Set collection(HashSet and TreeSet)  Map collection(HashMap and TreeMap)

Step 1 : Create the POJO

 
File : ClassABC.java
 

package com.simpleCodeStuffs;

import java.util.List;
import java.util.Map;
import java.util.Set;

public class ClassABC {

	private List listVariable;
	private Map mapVariable;
	private Set setVariable;

	public List getListVariable() {
		return listVariable;
	}

	public void setListVariable(List listVariable) {
		this.listVariable = listVariable;
	}

	public Map getMapVariable() {
		return mapVariable;
	}

	public void setMapVariable(Map mapVariable) {
		this.mapVariable = mapVariable;
	}

	public Set getSetVariable() {
		return setVariable;
	}

	public void setSetVariable(Set setVariable) {
		this.setVariable = setVariable;
	}

	public String toString() {
		return ("listVariable \t" + listVariable + "\nsetVariable \t"
				+ setVariable + "\nmapVariable \t" + mapVariable);
	}
}

File : Amount.java
 

package com.simpleCodeStuffs;

public class Amount {

	private String val;

	public String getVal() {
		return val;
	}

	public void setVal(String val) {
		this.val = val;
	}

	public String toString() {
		return ("amount bean val: " + val);
	}
}

Step 2 : Provide the configuration metadata in the xml file

File : Beans.xml
 

	
		
			1
			ArrayList
			
		
	

	
		
			2
			HashSet
			
		
	

	
		
	



	

Step 3 :

 
File : MainClass.java
 

package com.simpleCodeStuffs;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class MainClass
{
public static void main(String[] args)
{
ApplicationContext context = new ClassPathXmlApplicationContext("Beans.xml");
	ClassABC abc = (ClassABC) context.getBean("abc");
	System.out.println(abc);
}
}

Step 4: Run the application. The output is

Download It List FactoryBean, Set FactoryBean and Map FactoryBean