modules/core/src/main/java/org/apache/ignite/IgnitionListener.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.ignite;

import java.util.EventListener;
import org.jetbrains.annotations.Nullable;

/**
 * Listener for gird state change notifications. Use
 * {@link Ignition#addListener(IgnitionListener)} to register this
 * listener with grid factory.
 */
public interface IgnitionListener extends EventListener {
    /**
     * Listener for grid factory state change notifications.
     *
     * @param name Ignite instance name ({@code null} for default un-named Ignite instance).
     * @param state New state.
     */
    public void onStateChange(@Nullable String name, IgniteState state);
}