com.codename1.util

Interface FailureCallback<T>

All Known Subinterfaces:

Callback<T>

All Known Implementing Classes:

CallbackAdapter

public interface FailureCallback<T>

Simple interface that allows asynchronous code to perform a parameterized callback in a similar way to GWT's callback interface. This is the base interface for Callback where the logic is broken down to single method interfaces so Java 8 lambdas can be used.

Method Summary

Modifier and Type	Method and Description
void	onError(Object sender, Throwable err, int errorCode, String errorMessage) Invoked when the async method throws an exception

Method Detail

onError

void onError(Object sender,
             Throwable err,
             int errorCode,
             String errorMessage)

Invoked when the async method throws an exception

Parameters:

sender - the source of the error e.g. connection request that triggered the error, could be null

err - in case of an error triggered by an exception

errorCode - if applicable e.g. with http error codes, -1 for unknown

errorMessage - if applicable a user displayable message (can be null)