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

namespace Ant.ORM
{
    /// <summary>
    /// 字段标签
    /// </summary>
    [AttributeUsage(AttributeTargets.Property)]
    public class DataFieldColumnAttribute : Attribute
    {
        private string name;
        /// <summary>
        /// 列名
        /// </summary>
        public string Name
        {
            get { return name; }
            set { name = value; }
        }
        private DbType dbType;
        /// <summary>
        /// 类型
        /// </summary>
        public DbType DbType
        {
            get { return dbType; }
            set { dbType = value; }
        }
        private object defaultValue;
        /// <summary>
        /// 默认值
        /// </summary>
        public object DefaultValue
        {
            get { return defaultValue; }
            set { defaultValue = value; }
        }

        private bool isPrimaryKey = false;
        /// <summary>
        /// 是否为主键
        /// </summary>
        public bool IsPrimaryKey
        {
            get { return isPrimaryKey; }
            set { isPrimaryKey = value; }
        }

        private bool isForeignKey = false;
        /// <summary>
        /// 是否为外键
        /// </summary>
        public bool IsForeignKey
        {
            get { return isForeignKey; }
            set { isForeignKey = value; }
        }

        private bool isNullable = true;
        /// <summary>
        /// 是否为空
        /// </summary>
        public bool IsNullable
        {
            get { return isNullable; }
            set { isNullable = value; }
        }
        private bool isAutoincrement = false;
        /// <summary>
        /// 是否为自动增长
        /// </summary>
        public bool IsAutoincrement
        {
            get { return isAutoincrement; }
            set { isAutoincrement = value; }
        }
        public DataFieldColumnAttribute(string name, DbType dbType)
        {
            this.name = name;
            this.DbType = dbType;
        }

    }
}