Package io.vertx.ext.stomp

## Class DefaultNackHandler

- java.lang.Object
- - io.vertx.ext.stomp.DefaultNackHandler

- All Implemented Interfaces:
    `Handler<ServerFrame>`

      public class DefaultNackHandler
      extends Object
      implements Handler<ServerFrame>

  STOMP compliant actions executed when receiving a `NACK` sf.frame(). It removes the acknowledges messages from the list of messages waiting for acknowledgment and trigger an `StompServerHandler#onNack(Subscription, List)` calls.

  If the `NACK` frame specifies a transaction id, the acknowledgment is delayed until the transaction commit.

  This handler is thread safe.
  Author:
    Clement Escoffier

- - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `DefaultNackHandler()` |

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | `handle​(ServerFrame sf)` | Something has happened, so handle it.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### DefaultNackHandler

          public DefaultNackHandler()

  - ### Method Detail

    - #### handle

          public void handle​(ServerFrame sf)

      Description copied from interface: `Handler`
      Something has happened, so handle it.
      Specified by:
        `handle` in interface `Handler<ServerFrame>`
      Parameters:
        `sf` - the event to handle