/*
 * Copyright 2011 LMAX Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.lmax.disruptor;

Callback handler for uncaught exceptions in the event processing cycle of the BatchEventProcessor /**
 * Callback handler for uncaught exceptions in the event processing cycle of the {@link BatchEventProcessor}
 */
public interface ExceptionHandler<T>
{
    
Strategy for handling uncaught exceptions when processing an event.
If the strategy wishes to terminate further processing by the BatchEventProcessor then it should throw a RuntimeException.
Params:
ex –  the exception that propagated from the EventHandler.
sequence – of the event which cause the exception.
event –    being processed when the exception occurred.  This can be null./**
     * <p>Strategy for handling uncaught exceptions when processing an event.</p>
     *
     * <p>If the strategy wishes to terminate further processing by the {@link BatchEventProcessor}
     * then it should throw a {@link RuntimeException}.</p>
     *
     * @param ex       the exception that propagated from the {@link EventHandler}.
     * @param sequence of the event which cause the exception.
     * @param event    being processed when the exception occurred.  This can be null.
     */
    void handleEventException(Throwable ex, long sequence, T event);

    
Callback to notify of an exception during LifecycleAware.onStart() 
Params:
ex – throw during the starting process./**
     * Callback to notify of an exception during {@link LifecycleAware#onStart()}
     *
     * @param ex throw during the starting process.
     */
    void handleOnStartException(Throwable ex);

    
Callback to notify of an exception during LifecycleAware.onShutdown() 
Params:
ex – throw during the shutdown process./**
     * Callback to notify of an exception during {@link LifecycleAware#onShutdown()}
     *
     * @param ex throw during the shutdown process.
     */
    void handleOnShutdownException(Throwable ex);
}