Interface IQueryArgumentsModels

Namespace

Cratis.Arc.Queries

Assembly

Cratis.Arc.Core.dll

Defines a system that materializes the model representing a query's argument set as a whole.

public interface IQueryArgumentsModels

Extension Methods

MethodCalls.CallGenericMethod<TOut, T>(T, Expression<Func<T, Func<TOut>>>, params Type[])

MethodCalls.CallGenericMethod<TOut, T, T1>(T, Expression<Func<T, Func<T1, TOut>>>, T1, params Type[])

MethodCalls.CallGenericMethod<TOut, T, T1, T2>(T, Expression<Func<T, Func<T1, T2, TOut>>>, T1, T2, params Type[])

MethodCalls.CallGenericMethod<TOut, T, T1, T2, T3>(T, Expression<Func<T, Func<T1, T2, T3, TOut>>>, T1, T2, T3, params Type[])

ConverterExtensions.ConvertTo(object, Type)

ConceptExtensions.GetConceptValue(object)

ConceptExtensions.IsConcept(object)

JsonValueExtensions.ToJsonValue(object?)

ObservableExtensions.InvokeAndWrapWithSubject<TResult>(object, Func<CancellationToken, IObservable<TResult>>)

ObservableExtensions.InvokeAndWrapWithTransformSubject<TResult, TSource>(object, Func<CancellationToken, IObservable<TSource>>, Func<TSource, TResult>)

Remarks

A query's arguments are flat, and a validator can be declared against that flat shape by declaring a QueryValidator<T> for a type whose properties mirror the query's parameters. The generated TypeScript proxy validates its arguments object against exactly that shape, so without a server-side counterpart such a validator would be enforced in the browser only — which is to say not enforced at all, since anything can call the endpoint directly. This is that counterpart.

Methods

TryCreateFor(IQueryPerformer, QueryArguments, out object)

Tries to materialize the arguments model for a query from the arguments it was called with.

bool TryCreateFor(IQueryPerformer performer, QueryArguments arguments, out object model)

Parameters

performer IQueryPerformer

The IQueryPerformer for the query.

arguments QueryArguments

The QueryArguments the query was called with.

model object

The materialized model when the query has one.

Returns

bool

True when the query has an arguments model and it could be materialized; otherwise false.