QueryController<InstanceType extends ManagedObject> class Null safety

A partial class for implementing an ResourceController that has a few conveniences for executing Querys.

Instances of QueryController are ResourceControllers that have a pre-baked Query available. This Query's type - the ManagedObject type is operates on - is defined by InstanceType.

The values of query are set based on the HTTP method, HTTP path and request body. Prior to executing an operation method in subclasses of QueryController, the query will have the following attributes under the following conditions:

  1. The Query will always have a type argument that matches InstanceType.
  2. If the request contains a path variable that matches the name of the primary key of InstanceType, the Query will set its Query.where to match on the ManagedObject whose primary key is that value of the path parameter.
  3. If the Request contains a body, it will be decoded per the acceptedContentTypes and deserialized into the Query.values property via ManagedObject.readFromMap.


QueryController(ManagedContext context)
Create an instance of QueryController.


acceptedContentTypes List<ContentType>
Types of content this ResourceController will accept. [...]
read / write, inherited
hashCode int
The hash code for this object. [...]
read-only, inherited
logger Logger
An instance of the 'conduit' logger.
read-only, inherited
nextController Controller?
Receives requests that this controller does not respond to. [...]
read-only, inherited
pathVariables Map<String?, String>?
Parameters parsed from the URI of the request, if any exist. [...]
read-only, inherited
policy CORSPolicy?
The CORS policy of this controller.
read / write, inherited
query Query<InstanceType>?
A query representing the values received from the request being processed. [...]
read / write
recycledState Null
Returns state information that is reused across instances of this type. [...]
read-only, inherited
request Request?
The request being processed by this ResourceController. [...]
read / write, inherited
responseContentType ContentType
The default content type of responses from this ResourceController. [...]
read / write, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited


applyCORSHeadersIfNecessary(Request req, Response resp) → void
didAddToChannel() → void
Lifecycle callback, invoked after added to channel, but before any requests are served. [...]
didDecodeRequestBody(RequestBody body) → void
Callback to indicate when a request body has been processed. [...]
documentComponents(APIDocumentContext context) → void
Tells this object to add its components to context. [...]
documentOperationDescription(APIDocumentContext context, Operation? operation) String?
Returns a documented description for operation. [...]
documentOperationParameters(APIDocumentContext context, Operation? operation) List<APIParameter?>?
Returns a documented list of APIParameter for operation. [...]
@mustCallSuper, inherited
documentOperationRequestBody(APIDocumentContext context, Operation? operation) APIRequestBody?
Returns a documented request body for operation. [...]
documentOperationResponses(APIDocumentContext context, Operation operation) Map<String, APIResponse>
Returns a map of possible responses for operation. [...]
documentOperations(APIDocumentContext context, String route, APIPath path) Map<String, APIOperation>
Tells this object to return all APIOperations it handles. [...]
documentOperationSummary(APIDocumentContext context, Operation? operation) String?
Returns a documented summary for operation. [...]
documentOperationTags(APIDocumentContext context, Operation? operation) List<String>
Returns a list of tags for operation. [...]
documentPaths(APIDocumentContext context) Map<String, APIPath>
Tells this object to return all APIPaths it handles. [...]
handle(Request request) FutureOr<RequestOrResponse>
The primary request handling method of this object. [...]
handleError(Request request, dynamic caughtValue, StackTrace trace) Future
Sends an HTTP response for a request that yields an exception or error. [...]
Links a controller to the receiver to form a request channel. [...]
linkFunction(FutureOr<RequestOrResponse?> handle(Request request)) Linkable?
Links a function controller to the receiver to form a request channel. [...]
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
receive(Request req) Future?
Delivers req to this instance to be processed. [...]
restore(Null state) → void
Provides a instance of this type with the recycledState of this type. [...]
toString() String
A string representation of this object. [...]
willDecodeRequestBody(RequestBody body) → void
Callback invoked prior to decoding a request body. [...]
willProcessRequest(Request req) FutureOr<RequestOrResponse>
Executed prior to handling a request, but after the request has been set. [...]
willSendResponse(Response response) → void
Executed prior to Response being sent. [...]


operator ==(Object other) bool
The equality operator. [...]