AsyncEvent (Servlet 4.0 API Documentation - Apache Tomcat 9.0.111)
Description: declaration: package: javax.servlet, class: AsyncEvent

# Class AsyncEvent

java.lang.Object
javax.servlet.AsyncEvent

public class AsyncEvent extends Object
Used to pass data to the methods of `AsyncListener`.

Since:
  Servlet 3.0

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `AsyncEvent(AsyncContext context)`
  Creates an instance using the provide parameters.
  `AsyncEvent(AsyncContext context, Throwable throwable)`
  Creates an instance using the provide parameters.
  `AsyncEvent(AsyncContext context, ServletRequest request, ServletResponse response)`
  Creates an instance using the provide parameters.
  `AsyncEvent(AsyncContext context, ServletRequest request, ServletResponse response, Throwable throwable)`
  Creates an instance using the provide parameters.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `AsyncContext`
  `getAsyncContext()`
  Obtain the asynchronous context associated with the event.
  `ServletRequest`
  `getSuppliedRequest()`
  Obtain the request associated with the event.
  `ServletResponse`
  `getSuppliedResponse()`
  Obtain the response associated with the event.
  `Throwable`
  `getThrowable()`
  Obtain the throwable associated with the event.

  ### Methods inherited from class Object

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

- ## Constructor Details

  - ### AsyncEvent

    public AsyncEvent(AsyncContext context)
    Creates an instance using the provide parameters.
    Parameters:
      `context` - The asynchronous context associated with the event

  - ### AsyncEvent

    public AsyncEvent(AsyncContext context, ServletRequest request, ServletResponse response)
    Creates an instance using the provide parameters.
    Parameters:
      `context` - The asynchronous context associated with the event
      `request` - The request associated with the event
      `response` - The response associated with the event

  - ### AsyncEvent

    public AsyncEvent(AsyncContext context, Throwable throwable)
    Creates an instance using the provide parameters.
    Parameters:
      `context` - The asynchronous context associated with the event
      `throwable` - The throwable associated with the event

  - ### AsyncEvent

    public AsyncEvent(AsyncContext context, ServletRequest request, ServletResponse response, Throwable throwable)
    Creates an instance using the provide parameters.
    Parameters:
      `context` - The asynchronous context associated with the event
      `request` - The request associated with the event
      `response` - The response associated with the event
      `throwable` - The throwable associated with the event

- ## Method Details

  - ### getAsyncContext

    public AsyncContext getAsyncContext()
    Obtain the asynchronous context associated with the event.
    Returns:
      The asynchronous context associated with the event or `null` if one was not specified

  - ### getSuppliedRequest

    public ServletRequest getSuppliedRequest()
    Obtain the request associated with the event.
    Returns:
      The request associated with the event or `null` if one was not specified

  - ### getSuppliedResponse

    public ServletResponse getSuppliedResponse()
    Obtain the response associated with the event.
    Returns:
      The response associated with the event or `null` if one was not specified

  - ### getThrowable

    public Throwable getThrowable()
    Obtain the throwable associated with the event.
    Returns:
      The throwable associated with the event or `null` if one was not specified