DefaultMethodArgumentResolverManager class final

Composite implementation of MethodArgumentResolver that delegates to a chain of registered resolvers.

This acts as the central coordinator for argument resolution in JetLeaf’s request handling pipeline. When a controller method is invoked, JetLeaf uses a DefaultMethodArgumentResolverManager to:

  1. Iterate over all registered resolvers.
  2. Select the first resolver that supports a given parameter.
  3. Ask that resolver to provide the argument value.

Example

final composite = DefaultMethodArgumentResolverManager();
composite.addResolvers([
  RequestParamResolver(),
  PathVariableResolver(),
  RequestBodyResolver(),
]);

final args = await composite.resolveArgsForMethod(
  handlerMethod.getMethod(),
  request,
  response,
  handlerMethod,
);

print(args.positionalArgs);
print(args.namedArgs);

Design Notes

  • Supports both positional and named parameter mapping.
  • Stops searching once a resolver successfully claims a parameter.
  • Used internally by JetLeaf’s HandlerMethodInvoker.
Implemented types
Annotations
  • @Author.new("Evaristus Adimonyemma")

Constructors

DefaultMethodArgumentResolverManager()
Composite implementation of MethodArgumentResolver that delegates to a chain of registered resolvers.

Properties

hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

addResolver(MethodArgumentResolver resolver) → void
Adds a single resolver to the internal resolver chain.
addResolvers(Iterable<MethodArgumentResolver> resolvers) → void
Adds multiple resolvers to the internal resolver chain.
getHandlers() → List<MethodArgumentResolver>
Returns the complete list of MethodArgumentResolvers managed by this instance.
override
getPackageName() → String
Represents an abstraction for identifying the package that an object, resource, or service belongs to.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
onReady() → Future<void>
Interface to be implemented by pods that require initialization logic after their properties have been set by the container.
resolveArgs(Method method, ServerHttpRequest req, ServerHttpResponse res, HandlerMethod handler, [Object? ex, StackTrace? st]) → Future<ArgumentValueHolder>
Resolves all arguments for a given controller method.
override
resolveArgument(Parameter param, ServerHttpRequest req, ServerHttpResponse res, HandlerMethod handler, [Object? ex, StackTrace? st]) → Future<Object?>
setApplicationContext(ApplicationContext applicationContext) → void
Sets the ApplicationContext that this component runs in.
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited