public enum Tenum {

    None(1),ByteArray(2),List(3),Map(4);

    private int id;

    private Tenum(int id){

        this.id=id;

    }

    public static Tenum getById(int id){

        for(Tenum t:values()){

            if(t.id==id){

                return t;

            }

        }

        return null;

    }

}

import org.junit.Test;

public class testEnum {

        @Test

        public void tEnum(){

            System.out.println(Tenum.getById(1));

            System.out.println(Tenum.getById(2));

            System.out.println(Tenum.getById(3));

            System.out.println(Tenum.getById(4));

        }

}