/// <summary>
/// 注册缓存
/// </summary>
/// <param name="modelType"></param>
private static DbCacheDescriptor RegisterCache(Type modelType)
{
DbCacheDescriptor des = new DbCacheDescriptor();
object[] databaseAttrs = modelType.GetCustomAttributes(typeof(DbDatabaseAttribute), false);
if (null != databaseAttrs && databaseAttrs.Length > 0)
{
des.DbDatabase = databaseAttrs[0] as DbDatabaseAttribute;
}
else
{
throw new Exception("无法注册DB模型,缺少DBDatabaseAttribute");
}
object[] tableAttrs = modelType.GetCustomAttributes(typeof(DbTableAttribute), false);
if (null != tableAttrs && tableAttrs.Length > 0)
{
des.DbTable = tableAttrs[0] as DbTableAttribute;
}
else
{
throw new Exception("无法注册DB模型,缺少DBTableAttribute");
}
des.DbColumns = new Dictionary <PropertyInfo, DbColumnAttribute>();
PropertyInfo[] pis = modelType.GetProperties(s_propertyBindingFlags);
foreach (PropertyInfo pi in pis)
{
object[] columnAttrs = pi.GetCustomAttributes(typeof(DbColumnAttribute), false);
if (null != columnAttrs && columnAttrs.Length > 0)
{
DbColumnAttribute column = columnAttrs[0] as DbColumnAttribute;
column.PropertyNameMapping = pi.Name;
des.DbColumns.Add(pi, column);
}
}
return(des);
}
/// <summary>
/// 获取列信息
/// </summary>
/// <param name="modelType">模型类型</param>
/// <returns></returns>
public static Dictionary <PropertyInfo, DbColumnAttribute> GetColumns(Type modelType)
{
if (null == modelType)
{
throw new ArgumentNullException("The Method 'GetColumn' Of Parameter 'modelType' is null");
}
if (!s_modelCache.ContainsKey(modelType.FullName))
{
object operatekey = GetKey(modelType);
lock (operatekey)
{
if (!s_modelCache.ContainsKey(modelType.FullName))
{
DbCacheDescriptor register = RegisterCache(modelType);
s_modelCache.Add(modelType.FullName, register);
}
}
}
DbCacheDescriptor dbTableDes = s_modelCache[modelType.FullName];
return(dbTableDes.DbColumns);
}
/// <summary>
/// 获取数据实例信息
/// </summary>
/// <param name="modelType">模型类型</param>
/// <returns></returns>
public static DbDatabaseAttribute GetDBDatabase(Type modelType)
{
if (null == modelType)
{
throw new ArgumentNullException("The Method 'GetDBInstance' Of Parameter 'modelType' is null");
}
if (!s_modelCache.ContainsKey(modelType.FullName))
{
object operatekey = GetKey(modelType);
lock (operatekey)
{
if (!s_modelCache.ContainsKey(modelType.FullName))
{
DbCacheDescriptor register = RegisterCache(modelType);
s_modelCache.Add(modelType.FullName, register);
}
}
}
DbCacheDescriptor dbTableDes = s_modelCache[modelType.FullName];
return(dbTableDes.DbDatabase);
}