/// <summary>
/// 获取加载器
/// </summary>
/// <returns></returns>
public static IAdapterLoader GetLoader(string key)
{
IAdapterLoader ret = null;
if (key.Equals("Sql2K", StringComparison.CurrentCultureIgnoreCase))
{
ret = new Buffalo.DB.DataBaseAdapter.SqlServer2KAdapter.AdapterLoader();
}
else if (key.Equals("Sql2K5", StringComparison.CurrentCultureIgnoreCase))
{
ret = new Buffalo.DB.DataBaseAdapter.SqlServer2K5Adapter.AdapterLoader();
}
else if (key.Equals("Sql2K8", StringComparison.CurrentCultureIgnoreCase))
{
ret = new Buffalo.DB.DataBaseAdapter.SqlServer2K8Adapter.AdapterLoader();
}
else if (key.Equals("Oracle9", StringComparison.CurrentCultureIgnoreCase))
{
ret = new Buffalo.DB.DataBaseAdapter.Oracle9Adapter.AdapterLoader();
}
else if (key.Equals("Access", StringComparison.CurrentCultureIgnoreCase))
{
ret = new Buffalo.DB.DataBaseAdapter.AccessAdapter.AdapterLoader();
}
else
{
Type loaderType = GetAdapterLoader(key);
ret = Activator.CreateInstance(loaderType) as IAdapterLoader;
}
return(ret);
}
/// <summary>
/// Get AdapterLoader Which Is Adapte To The Protocol In Config
/// </summary>
/// <returns></returns>
public static IAdapterLoader GetAdapterLoader()
{
if (adapterLoader == null)
{
adapterLoader = (IAdapterLoader)GetServiceEntity();
}
return(adapterLoader);
}
/// <summary>
/// 初始化数据库适配器
/// </summary>
private void InitAdapters()
{
IAdapterLoader loader = GetLoader(DbType);
if (loader == null)
{
throw new Exception("不支持数据库类型:" + DbType);
}
_curAggregateFunctions = loader.AggregateFunctions;
_curCommonFunctions = loader.CommonFunctions;
_curConvertFunctions = loader.ConvertFunctions;
_curDbAdapter = loader.DbAdapter;
_curDBStructure = loader.DBStructure;
_curMathFunctions = loader.MathFunctions;
}
