コード例 #1
0
        /// <summary>
        /// emit转换实体
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="dr"></param>
        /// <returns></returns>
        public static List <T> ToEntityList <T>(this IDataReader dr)
        {
            List <T>           list = new List <T>();
            LoadDataRecord <T> load = null;

            if (IsCache)
            {
                load = FindDataRecordMethod <T>(dr);
            }

            if (load == null)
            {
                var properties = typeof(T).GetProperties(BindingFlags.GetProperty | BindingFlags.Public | BindingFlags.Instance | BindingFlags.IgnoreCase);
                var mapColumns = CheckProperty(dr, properties);
                if (IsCache)
                {
                    load = CreateDataRecordMethod <T>(dr, mapColumns);
                }
                else
                {
                    load = CreateDataRecordMethod <T>(null, mapColumns);
                }
            }
            while (dr.Read())
            {
                list.Add(load(dr));
            }
            return(list);
        }
コード例 #2
0
        /// <summary>
        /// 转行实体
        /// </summary>
        /// <param name="dr">DataReader</param>
        /// <param name="type">实体类型</param>
        /// <param name="key">缓存Key</param>
        /// <param name="ignore">忽略属性大小写,默认忽略</param>
        /// <returns></returns>
        public static List <object> ToEntityList(this IDataReader dr, Type type, string key = null, bool ignore = true)
        {
            List <object>           list = new List <object>();
            LoadDataRecord <object> load = null;

            if (IsCache)
            {
                load = FindObjectDataRecordMethod(dr, type, key);
            }

            if (load == null)
            {
                var properties = type.GetProperties(BindingFlags.GetProperty | BindingFlags.Public | BindingFlags.Instance | BindingFlags.IgnoreCase);
                var mapColumns = CheckProperty(dr, properties, ignore);
                if (IsCache)
                {
                    load = CreateDataRecordMethod(dr, mapColumns, type, key);
                }
                else
                {
                    load = CreateDataRecordMethod(null, mapColumns, type, key);
                }
            }
            while (dr.Read())
            {
                list.Add(load(dr));
            }
            return(list);
        }
コード例 #3
0
ファイル: ConvertHelper.cs プロジェクト: wufenglu/BMSNetCore
        /// <summary>
        /// 从Dictionary获取委托 LoadDataRecord<T>的方法实例,没有则调用BuildMethod构造一个。
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <returns></returns>
        private static LoadDataRecord <T> GetDataRecordMethod <T>()
        {
            string             key  = dataRecordAssembly.MethodName + typeof(T).Name;
            LoadDataRecord <T> load = null;

            load = (LoadDataRecord <T>)BuildMethod <T>(dataRecordAssembly).CreateDelegate(typeof(LoadDataRecord <T>));

            return(load);
        }
コード例 #4
0
ファイル: ConvertHelper.cs プロジェクト: wufenglu/BMSNetCore
        public static List <T> ToList <T>(IDataReader dr)
        {
            List <T>           list = new List <T>();
            LoadDataRecord <T> load = GetDataRecordMethod <T>();

            while (dr.Read())
            {
                list.Add(load(dr));
            }
            return(list);
        }
コード例 #5
0
        private static LoadDataRecord <object> CreateDataRecordMethod(IDataReader reader, MapColumn[] mapColumns, Type type, string key = null)
        {
            if (reader != null && string.IsNullOrEmpty(key))
            {
                key = reader.FieldCount + "_" + dataRecordAssembly.MethodName + type.FullName;
            }
            LoadDataRecord <object> load = (LoadDataRecord <object>)BuildMethod(dataRecordAssembly, type, mapColumns, key).CreateDelegate(typeof(LoadDataRecord <object>));

            if (key != null)
            {
                ConvertCache <string, object> .Singleton.Set(key, load);
            }
            return(load);
        }
コード例 #6
0
        /// <summary>
        /// 查找DataRecord转换
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="reader"></param>
        /// <returns></returns>
        private static LoadDataRecord <T> FindDataRecordMethod <T>(IDataReader reader, string key = null)
        {
            if (string.IsNullOrEmpty(key))
            {
                key = reader.FieldCount + "_" + dataRecordAssembly.MethodName + typeof(T).FullName;
            }
            LoadDataRecord <T> load = null;
            object             v    = null;

            if (ConvertCache <string, object> .Singleton.TryGet(key, out v))
            {
                load = v as LoadDataRecord <T>;
            }
            return(load);
        }
コード例 #7
0
        /// <summary>
        /// 从Dictionary获取委托 LoadDataRecord<T>的方法实例,没有则调用BuildMethod构造一个。
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <returns></returns>
        private static LoadDataRecord <T> GetDataRecordMethod <T>()
        {
            string             key  = dataRecordAssembly.MethodName + typeof(T).Name;
            LoadDataRecord <T> load = null;

            if (HttpRuntime.Cache[key] == null)
            {
                load = (LoadDataRecord <T>)BuildMethod <T>(dataRecordAssembly).CreateDelegate(typeof(LoadDataRecord <T>));
                HttpRuntime.Cache[key] = load;
            }
            else
            {
                load = HttpRuntime.Cache[key] as LoadDataRecord <T>;
            }
            return(load);
        }
コード例 #8
0
        /// <summary>
        /// 查找DataRecord转换
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="reader"></param>
        /// <returns></returns>
        private static LoadDataRecord <T> FindDataRecordMethod <T>(IDataReader reader)
        {
            string key = reader.FieldCount + "_";

            for (int i = 0; i < reader.FieldCount; i++)
            {
                key = key + reader.GetName(i) + "_";
            }
            key = key + dataRecordAssembly.MethodName + typeof(T).FullName;
            LoadDataRecord <T> load = null;
            object             v    = null;

            if (ConvertCache <string, object> .Singleton.TryGet(key, out v))
            {
                load = v as LoadDataRecord <T>;
            }
            return(load);
        }
コード例 #9
0
        /// <summary>
        /// 从Cache获取委托 LoadDataRecord<T>的方法实例,没有则调用BuildMethod构造一个。
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <returns></returns>
        private static LoadDataRecord <T> GetDataRecordMethod <T>()
        {
            string             key  = dataRecordAssembly.MethodName + typeof(T).Name;
            LoadDataRecord <T> load = null;

            if (Cache == null)
            {
                Cache = new Dictionary <string, object>();
            }
            if (!Cache.ContainsKey(key))
            {
                load = (LoadDataRecord <T>)BuildMethod <T>(dataRecordAssembly).CreateDelegate(typeof(LoadDataRecord <T>));
                Cache.Add(key, load);
            }
            else
            {
                load = Cache[key] as LoadDataRecord <T>;
            }
            return(load);
        }
コード例 #10
0
        /// <summary>
        /// 创建DataRecord转换
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="reader"></param>
        /// <param name="mapColumns"></param>
        /// <returns></returns>
        private static LoadDataRecord <T> CreateDataRecordMethod <T>(IDataReader reader, MapColumn[] mapColumns)
        {
            string key = null;

            if (reader != null)
            {
                key = reader.FieldCount + "_";
                for (int i = 0; i < reader.FieldCount; i++)
                {
                    key = key + reader.GetName(i) + "_";
                }
                key = key + dataRecordAssembly.MethodName + typeof(T).FullName;
            }
            LoadDataRecord <T> load = (LoadDataRecord <T>)BuildMethod <T>(dataRecordAssembly, mapColumns, key).CreateDelegate(typeof(LoadDataRecord <T>));

            if (key != null)
            {
                ConvertCache <string, object> .Singleton.Set(key, load);
            }
            return(load);
        }