storm-client/src/jvm/org/apache/storm/topology/base/BaseStatefulBolt.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.topology.base;

import java.util.Map;
import org.apache.storm.state.State;
import org.apache.storm.task.OutputCollector;
import org.apache.storm.task.TopologyContext;
import org.apache.storm.topology.IStatefulBolt;
import org.apache.storm.topology.OutputFieldsDeclarer;

public abstract class BaseStatefulBolt<T extends State> implements IStatefulBolt<T> {

    @Override
    public void prepare(Map<String, Object> topoConf, TopologyContext context, OutputCollector collector) {
        // NOOP
    }

    @Override
    public void cleanup() {
        // NOOP
    }

    @Override
    public void declareOutputFields(OutputFieldsDeclarer declarer) {
        // NOOP
    }

    @Override
    public Map<String, Object> getComponentConfiguration() {
        return null;
    }

    @Override
    public void preCommit(long txid) {
        // NOOP
    }

    @Override
    public void prePrepare(long txid) {
        // NOOP
    }

    @Override
    public void preRollback() {
        // NOOP
    }
}