1	import java.util.ArrayList;
     2	import java.util.Iterator;
     3	import java.util.List;
     4	import descriptor.*;
     5	
     6	public class Main {
     7	    public static void main(String[] args){
     8	        Main main = new Main();
     9	        List list = main.createAttributeDescriptors();
    10	        Iterator it = list.iterator();
    11	        while(it.hasNext()){
    12	            System.out.println("class name is : " + it.next().getClass().getName());
    13	        }
    14	    }
    15	
    16	    public List createAttributeDescriptors(){
    17	        List result = new ArrayList();
    18	
    19	        result.add(forInteger("remoteId", getClass(), Integer.TYPE));
    20	        result.add(forDate("createDate", getClass(), Date.class));
    21	        result.add(forDate("lastChangeDate", getClass(), Date.class));
    22	        result.add(forReference("createdBy", getClass(), User.class, RemoteUser.class));
    23	        result.add(forReference("lastChangedBy", getClass(), User.class, RemoteUser.class));
    24	        result.add(forInteger("optimisticLockVersion", getClass(), Integer.TYPE));
    25	
    26	        return result;
    27	    }
    28	    public static DefaultDescriptor forInteger(String column, Class cls,int type){
    29	        return new DefaultDescriptor(column,cls,type);
    30	    }
    31	    public static DefaultDescriptor forDate(String column, Class cls,Class type){
    32	        return new DefaultDescriptor(column,cls,type);
    33	    }
    34	    public static ReferenceDescriptor forReference(String column, Class cls,Class user,Class remoteUser){
    35	
    36	        return new ReferenceDescriptor(column, cls, user, remoteUser);
    37	    }
    38	 
    39	}
    40	
    41	class Integer {
    42	    public static int TYPE = 0;
    43	}
    44	
    45	class Date {
    46	}
    47	
    48	class User {
    49	}
    50	
    51	class RemoteUser {
    52	}
    53