| Package | Description | 
|---|---|
| org.apache.hc.core5.http.nio | Core HTTP transport APIs based on the asynchronous, event driven I/O model. | 
| org.apache.hc.core5.http.nio.support | Support classes for the asynchronous I/O model. | 
| Modifier and Type | Method and Description | 
|---|---|
| void | AsyncFilterChain.ResponseTrigger. pushPromise(HttpRequest promise,
           AsyncPushProducer responseProducer)Pushes a request message head as a promise to deliver a response message. | 
| void | ResponseChannel. pushPromise(HttpRequest promise,
           AsyncPushProducer responseProducer,
           HttpContext context)Pushes a request message head through this channel as a promise to deliver
 a response message. | 
| void | AsyncServerRequestHandler.ResponseTrigger. pushPromise(HttpRequest promise,
           HttpContext context,
           AsyncPushProducer responseProducer)Pushes a request message head as a promise to deliver a response message. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | BasicPushProducerBasic implementation of  AsyncPushProducerthat produces one fixed response
 and relies on aAsyncEntityProducerto generate response entity stream. | 
| Modifier and Type | Method and Description | 
|---|---|
| AsyncPushProducer | AsyncPushBuilder. build() | 
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