external/storm-cassandra/src/main/java/org/apache/storm/cassandra/client/SimpleClient.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.storm.cassandra.client;

import com.datastax.driver.core.Session;

public interface SimpleClient {

    /**
     * Creates a new session on this cluster.
     * *
     * @return a new session on this cluster.
     * @throws com.datastax.driver.core.exceptions.NoHostAvailableException if we cannot reach any cassandra contact points.
     */
    Session connect();

    /**
     * Close the underlying {@link com.datastax.driver.core.Cluster} instance.
     */
    void close();

    /**
     * Checks whether the underlying cluster instance is closed.
     */
    boolean isClose();
}