/*
* Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description:
*
*/
package com.nokia.microedition.m2g;
/**
* Class that wraps runnable in order to catch and forward
* exceptions that occured when executing in UI thread.
* This class is used only for running native methods in UI thread.
*/
abstract class M2GRunnableQt implements Runnable
{
private Throwable e = null;
/**
* From Runnable interface
*/
public void run()
{
try
{
doRun();
}
catch (Throwable t)
{
e = t;
}
}
/**
* Checks for possible exceptions and errors and throws them forward.
* Only unchecked exceptions and errors are thrown as only checked
* exception that m3gcore may throw comes from loader which is not
* executed in UI thread
*
* @throws RuntimeException
* @throws Error
*/
public void checkAndThrow()
{
if (e == null)
{
return;
}
if (e instanceof RuntimeException)
{
throw(RuntimeException)e;
}
else if (e instanceof Error)
{
throw(Error)e;
}
}
/**
* Method to be implemented for the UI thead execution
*/
abstract void doRun();
}