public ItemLoaderFieldResolver(MethodMember method, object handler, IDataLoaderContextAccessor dataLoader)
{
method.AssertNotNull(nameof(method));
handler.AssertNotNull(nameof(handler));
dataLoader.AssertNotNull(nameof(dataLoader));
if (!method.Return.Type.Is <T>())
{
throw new ArgumentException($"{nameof(ItemLoaderFieldResolver<T>)}: Expected method [{method.Name}] to have a return type of [{TypeOf<T>.Name}] instead of [{method.Return.Type.Name}].");
}
this._Method = method;
this._Handler = handler;
this._DataLoader = dataLoader;
}
public MethodFieldResolver(MethodMember method, object?handler)
{
method.AssertNotNull(nameof(method));
if (!method.Static)
{
handler.AssertNotNull(nameof(handler));
}
if (method.Return.IsVoid)
{
throw new NotSupportedException($"{nameof(MethodFieldResolver)}: Graph endpoints cannot have a return type that is void, {nameof(Task)} or {nameof(ValueTask)}.");
}
this._Method = method;
this._Handler = handler;
}
public CollectionBatchLoaderFieldResolver(MethodMember method, object handler, IDataLoaderContextAccessor dataLoader, Func <PARENT, KEY> getParentKey, Func <CHILD, KEY> getChildKey)
{
method.AssertNotNull(nameof(method));
handler.AssertNotNull(nameof(handler));
getParentKey.AssertNotNull(nameof(getParentKey));
getChildKey.AssertNotNull(nameof(getChildKey));
if (!method.Return.Type.Implements <IEnumerable <CHILD> >())
{
throw new ArgumentException($"{nameof(CollectionBatchLoaderFieldResolver<PARENT, CHILD, KEY>)}: Expected method [{method.Name}] to have a return type of [{TypeOf<IEnumerable<CHILD>>.Name}] instead of [{method.Return.Type.Name}].");
}
this._Method = method;
this._Handler = handler;
this._DataLoader = dataLoader;
this._GetParentKey = getParentKey;
this._GetChildKey = getChildKey;
}
