public DataAccessContextScope(DataMappingContext context)
{
this._context = context;
if (ContextType == DataAccessContextType.Normal)
{
this._context.StartReadOnlyContext();
}
else if (ContextType == DataAccessContextType.ReadWrite)
{
this._context.StartReadWriteContext();
}
else
{
throw new DataAccessException("不支持的上下文参数");
}
}
public DataAccessContext(DataMappingContext context, MethodInfo method, DataAccessOutSqlTextConfig outTypeConfig)
{
this._context = context;
this._method = method;
this._statementName = method.DeclaringType.FullName + "." + method.Name;
var outSqlType = method.GetCustomAttribute <DataAccessOutSqlTextAttribute>();
if (outSqlType != null)
{
this._outTypeConfig = outSqlType.Create();
}
else if (this._context.OutTypeConfig != null)
{
this._outTypeConfig = this._context.OutTypeConfig;
}
else if (outTypeConfig != null)
{
this._outTypeConfig = outTypeConfig;
}
var type = method.GetCustomAttribute <DataAccessTypeAttribute>();
var methodName = method.Name.ToLower();
if (type != null)
{
this._dataAccessType = type.AccessType;
}
else if (methodName.StartsWith("get"))
{
this._dataAccessType = DataAccessType.SelectReadOnly;
}
else if (methodName.StartsWith("update"))
{
this._dataAccessType = DataAccessType.Update;
}
else if (methodName.StartsWith("delete"))
{
this._dataAccessType = DataAccessType.Delete;
}
else if (methodName.StartsWith("insert"))
{
this._dataAccessType = DataAccessType.Insert;
}
if (this._dataAccessType == DataAccessType.SelectReadOnly && context.Reader == null)
{
this._dataAccessType = DataAccessType.SelectReadWrite;
_logger.Warn("数据源配置未指定只读库连接，该方法自动转为读写库连接，方法名：{0}", method.Name);
}
var interfaces = this._method.ReturnType.GetInterfaces();
foreach (var item in interfaces)
{
if (item == typeof(IPagedList))
{
this._isIPagedList = true;
break;
}
}
if (!this._isIPagedList)
{
foreach (var item in interfaces)
{
if (item == typeof(IEnumerable))
{
this._isSelectList = true;
break;
}
}
}
if (this._isIPagedList && this._method.ReturnType.IsGenericType)
{
var genericArgs = this._method.ReturnType.GetGenericArguments();
if (genericArgs.Length > 1)
{
throw new DataAccessException("分页查询方法返回值必须为PagedList<T>接口的对象");
}
var returnType = genericArgs[0];
this._pagedListType = typeof(PagedList <>).MakeGenericType(returnType);
}
if (!this._isIPagedList && !this._isSelectList && !IsNullableType(this._method.ReturnType) && this._method.ReturnType.IsValueType)
{
this._isNotCanNullReturnValue = true;
}
var parameters = this._method.GetParameters();
if (parameters.Length > 1)
{
if (this._isIPagedList)
{
throw new DataAccessException("分页查询方法参数必须且只能是一个IPageParameter接口的对象");
}
foreach (var item in parameters)
{
_parameterList.Add(item.Name);
}
_isHashtableParameter = true;
}
else if (parameters.Length == 0 && this._isIPagedList)
{
throw new DataAccessException("分页查询方法参数必须且只能是一个IPageParameter接口的对象");
}
else if (parameters.Length == 1 && this._isIPagedList)
{
var parameterInterfaces = parameters[0].ParameterType.GetInterfaces();
bool flag = false;
foreach (var item in parameterInterfaces)
{
if (item == typeof(IPageParameter))
{
flag = true;
break;
}
}
if (!flag)
{
throw new DataAccessException("分页查询方法参数必须且只能是一个IPageParameter接口的对象");
}
}
var interception = method.GetCustomAttribute <DataMappingInterceptionAttribute>();
if (interception != null)
{
_intercept = Activator.CreateInstance(interception.Intercept) as IDataMappingInterception;
}
}
public ReadOnlyContextScope(DataMappingContext context) : base(context)
{
}
public ReadWriteContextScope(DataMappingContext context) : base(context)
{
}
public DataAccess(DataMappingContext context, DataAccessOutSqlTextConfig outTypeConfig)
{
this._context = context;
this._outTypeConfig = outTypeConfig;
}