Package com.google.gwt.http.client

Interface RequestCallback

public interface RequestCallback

The primary interface a caller must implement to receive a response to a Request.

Required Module

Modules that use this interface should inherit com.google.gwt.http.HTTP.

<module>
  <!-- other inherited modules, such as com.google.gwt.user.User -->
  <inherits name="com.google.gwt.http.HTTP"/>
  <!-- additional module settings -->
</module>

Method Summary

Modifier and Type	Method	Description
void	onError(Request request, Throwable exception)	Called when a Request does not complete normally.
void	onResponseReceived(Request request, Response response)	Called when a pending Request completes normally.

Method Details

onResponseReceived

void onResponseReceived(Request request,
 Response response)

Called when a pending Request completes normally. Note this method is called even when the status code of the HTTP response is not "OK", 200.

Parameters:

request - the object that generated this event

response - an instance of the Response class

onError

void onError(Request request,
 Throwable exception)

Called when a Request does not complete normally. A RequestTimeoutException is one example of the type of error that a request may encounter.

Parameters:

request - the request object which has experienced the error condition, may be null if the request was never generated

exception - the error that was encountered