AbstractUrlHandlerAdapter class abstract

Abstract base implementation of HandlerAdapter for URL-based handler methods.

The AbstractUrlHandlerAdapter provides common invocation logic shared by all concrete handler adapters in the Jetleaf Web framework. It is responsible for managing:

• Argument resolution for reflective method calls.
• Handler invocation for DSL-defined routes and annotated controllers.
• Return value processing via composite return value handlers.

Responsibilities

• Handle invocation of:
  • RouteDslHandlerMethod — Jetleaf routing DSL functions.
  • AnnotatedHandlerMethod — Annotated controller methods.
  • FrameworkHandlerMethod — Internal Jetleaf framework endpoints.
• Integrate with argument and return value resolver strategies.
• Allow subclasses to extend behavior for custom handler types.

Lifecycle

Each request execution:

1. Resolves handler arguments (if applicable).
2. Invokes the underlying handler function or reflective method.
3. Delegates the result to the configured return value handler.

Example

final adapter = AnnotatedHandlerAdapter(argResolver, returnHandler);
await adapter.handle(request, response, controllerHandler);

Implemented types

• HandlerAdapter

Implementers

• AnnotatedHandlerAdapter
• FrameworkHandlerAdapter
• RouteDslHandlerAdapter
• WebViewHandlerAdapter

Annotations

• @Author.new("Evaristus Adimonyemma")

Constructors

AbstractUrlHandlerAdapter(MethodArgumentResolverManager methodArgumentResolver, ReturnValueHandlerManager methodReturnValueHandler)

Creates a new AbstractUrlHandlerAdapter with the provided resolvers.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

methodArgumentResolver → MethodArgumentResolverManager

The composite argument resolver responsible for resolving method parameters dynamically during handler invocation.

final

methodReturnValueHandler → ReturnValueHandlerManager

The composite return value handler that processes and writes handler results (e.g., JSON serialization, view rendering, redirects).

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

doHandle(HandlerMethod handler, Object target, ServerHttpRequest request, ServerHttpResponse response, Method method) → Future<void>

Executes the given handler method for the current HTTP request lifecycle.

handle(ServerHttpRequest request, ServerHttpResponse response, HandlerMethod handler) → Future<void>

Handles the given HandlerMethod for the provided HTTP request and response.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

supports(HandlerMethod handler) → bool

Determines whether this adapter supports the given HandlerMethod.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited