Abstract Data Access Layer Design

using System;
using System.Collections.Generic;
using System.Text;

namespace XPeriment.DataAccessTasks
{
    public class JoinData
    {
        private string jointype = "INNER";
        private string targettable = "";
        private string condition = "";
        
        public string JoinType
        {
            get
            {
                return jointype;
            }
            set
            {
                jointype = value;
            }
        }

        public string TargetTable
        {
            get
            {
                return targettable;
            }
            set
            {
                targettable = value;
            }
        }

        public string Condition
        {
            get
            {
                return condition;
            }
        }

        public JoinData(string joinType, string tableToJoin, string joinCondition)
        {
            jointype = joinType;
            targettable = tableToJoin;
            condition = joinCondition;
        }

        public JoinData(string tableToJoin, string joinCondition)
        {
            targettable = tableToJoin;
            condition = joinCondition;
        }

    }
}