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/*
 * Copyright (c) 2008-2020, Hazelcast, Inc. All Rights Reserved.
 *
 * 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.hazelcast.client.spi;

/**
 * Base interface for all client {@link EventHandler}s.
 *
 * @param  event type
 */
public interface EventHandler {

    void handle(E event);

    /**
     *  This method is called before registration request is sent to node.
     *
     *  Note that this method will also be called while first registered node is dead
     *  and re-registering to a second node.
     */
    void beforeListenerRegister();

    /**
     *  This method is called when registration request response is successfully returned from node.
     *
     *  Note that this method will also be called while first registered node is dead
     *  and re-registering to a second node.
     */
    void onListenerRegister();
}