# Package org.apache.http.nio.protocol

Asynchronous HTTP protocol handlers based on the non-blocking I/O model.

See: Description

Interface Summary
Interface | Description
--- | ---
EventListener | Deprecated (4.2) do not use
HttpAsyncClientExchangeHandler | `HttpAsyncClientExchangeHandler` represents a callback interface whose methods get invoked when executing one or multiple HTTP message exchanges on the client side.
HttpAsyncExchange | `HttpAsyncExchange` represents a server-side HTTP message exchange where an HTTP response can be deferred without blocking the I/O event thread and triggered asynchronously at a later point of later time.
HttpAsyncExpectationVerifier | `HttpAsyncExpectationVerifier` defines a strategy to verify whether or not an incoming HTTP request meets the target server's expectations.
HttpAsyncRequestConsumer<T> | `HttpAsyncRequestConsumer` is a callback interface whose methods get invoked to process an HTTP request message and to stream message content from a non-blocking HTTP connection on the server side.
HttpAsyncRequestExecutionHandler<T> | Deprecated use `HttpAsyncClientExchangeHandler`
HttpAsyncRequestHandler<T> | `HttpAsyncRequestHandler` represents a routine for asynchronous processing of a specific group of non-blocking HTTP requests.
HttpAsyncRequestHandlerMapper | `HttpAsyncRequestHandlerMapper` can be used to resolve an instance of `HttpAsyncRequestHandler` matching a particular `HttpRequest`.
HttpAsyncRequestHandlerResolver | Deprecated see `HttpAsyncRequestHandlerMapper`
HttpAsyncRequestProducer | `HttpAsyncRequestProducer` is a callback interface whose methods get invoked to generate an HTTP request message and to stream message content to a non-blocking HTTP connection.
HttpAsyncResponseConsumer<T> | `HttpAsyncResponseConsumer` is a callback interface whose methods get invoked to process an HTTP response message and to stream message content from a non-blocking HTTP connection on the client side.
HttpAsyncResponseProducer | `HttpAsyncResponseProducer` is a callback interface whose methods get invoked to generate an HTTP response message and to stream message content to a non-blocking HTTP connection on the server side.
HttpRequestExecutionHandler | Deprecated (4.2) use `HttpAsyncRequestExecutor` and `HttpAsyncRequester`
NHttpRequestExecutionHandler | Deprecated (4.2) use `HttpAsyncRequestExecutor` and `HttpAsyncRequester`
NHttpRequestHandler | Deprecated (4.2) use `HttpAsyncRequestHandler`
NHttpRequestHandlerResolver | Deprecated (4.2) use `HttpAsyncRequestHandlerResolver`
NHttpResponseTrigger | Deprecated (4.2) use `HttpAsyncExchange`

Class Summary
Class | Description
--- | ---
AbstractAsyncRequestConsumer<T> | Abstract `HttpAsyncRequestConsumer` implementation that relieves its subclasses form having to synchronize access to internal instance variables and provides a number of protected methods that they need to implement.
AbstractAsyncResponseConsumer<T> | Abstract `HttpAsyncResponseConsumer` implementation that relieves its subclasses form having to synchronize access to internal instance variables and provides a number of protected methods that they need to implement.
AsyncNHttpClientHandler | Deprecated (4.2) use `HttpAsyncRequestExecutor` and `HttpAsyncRequester`
AsyncNHttpClientHandler.ClientConnState |
AsyncNHttpServiceHandler | Deprecated (4.2) use `HttpAsyncService`
AsyncNHttpServiceHandler.ServerConnState |
BasicAsyncClientExchangeHandler<T> | Basic implementation of `HttpAsyncClientExchangeHandler` that executes a single HTTP request / response exchange.
BasicAsyncRequestConsumer | Basic implementation of `HttpAsyncRequestConsumer`.
BasicAsyncRequestExecutionHandler<T> | Deprecated (4.3) use `BasicAsyncClientExchangeHandler`.
BasicAsyncRequestHandler | Basic implementation of `HttpAsyncRequestHandler` that delegates the process of request handling to a `HttpRequestHandler`.
BasicAsyncRequestProducer | Basic implementation of `HttpAsyncRequestProducer`.
BasicAsyncResponseConsumer | Basic implementation of `HttpAsyncResponseConsumer`.
BasicAsyncResponseProducer | Basic implementation of `HttpAsyncResponseProducer`.
BufferingHttpClientHandler | Deprecated (4.2) use `HttpAsyncRequestExecutor` and `HttpAsyncRequester`
BufferingHttpServiceHandler | Deprecated (4.2) use `HttpAsyncService`
HttpAsyncRequester | `HttpAsyncRequester` is a utility class that can be used in conjunction with `HttpAsyncRequestExecutor` to initiate execution of asynchronous HTTP requests.
HttpAsyncRequestExecutor | `HttpAsyncRequestExecutor` is a fully asynchronous HTTP client side protocol handler based on the NIO (non-blocking) I/O model.
HttpAsyncRequestHandlerRegistry | Deprecated (4.3) use `UriHttpAsyncRequestHandlerMapper`
HttpAsyncService | `HttpAsyncService` is a fully asynchronous HTTP server side protocol handler based on the non-blocking (NIO) I/O model.
NHttpHandlerBase | Deprecated (4.2) do not use
NHttpRequestHandlerRegistry | Deprecated (4.2) use `UriHttpAsyncRequestHandlerMapper`
SimpleNHttpRequestHandler | Deprecated (4.2) use `BasicAsyncRequestHandler`
ThrottlingHttpClientHandler | Deprecated (4.2) use `HttpAsyncRequestExecutor` and `HttpAsyncRequester`
ThrottlingHttpServiceHandler | Deprecated (4.2) use `HttpAsyncService`
UriHttpAsyncRequestHandlerMapper | Maintains a map of HTTP request handlers keyed by a request URI pattern.

## Package org.apache.http.nio.protocol Description

Asynchronous HTTP protocol handlers based on the non-blocking I/O model.