using System;

namespace Core.StlMes.Client.Qcm
{
    /// <summary>
    /// 用来标识实体类的属性是否可以为空
    /// </summary>
    [AttributeUsage(AttributeTargets.Property, AllowMultiple = false)]
    class NullableAttribute : Attribute
    {
        private bool _nullable = true;

        /// <summary>
        /// 是否允许为空
        /// </summary>
        public bool Nullable
        {
            get { return _nullable; }
            set { _nullable = value; }
        }

        /// <summary>
        /// 是否为空特性构造函数
        /// </summary>
        /// <param name="nullable">是否允许为空</param>
        public NullableAttribute(bool nullable)
        {
            _nullable = nullable;
        }

    }
}