StateStore.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.falcon.state.store;

import org.apache.falcon.exception.StateStoreException;
import org.apache.falcon.service.ConfigurationChangeListener;

/**
 * Interface that combines entity, instance store APIs and also config change listener's.
 */
public interface StateStore extends ConfigurationChangeListener, EntityStateStore, InstanceStateStore {
    /**
     * Deletes all entities and instances.
     */
    void clear() throws StateStoreException;
}