storm-client/src/jvm/org/apache/storm/streams/windowing/BaseWindow.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.streams.windowing;

import static org.apache.storm.topology.base.BaseWindowedBolt.Duration;

public abstract class BaseWindow<L, I> implements Window<L, I> {
    protected String timestampField;
    protected String lateTupleStream;
    protected Duration lag;

    @Override
    public String getTimestampField() {
        return timestampField;
    }

    @Override
    public String getLateTupleStream() {
        return lateTupleStream;
    }

    @Override
    public Duration getLag() {
        return lag;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }

        BaseWindow<?, ?> that = (BaseWindow<?, ?>) o;

        if (timestampField != null ? !timestampField.equals(that.timestampField) : that.timestampField != null) {
            return false;
        }
        if (lateTupleStream != null ? !lateTupleStream.equals(that.lateTupleStream) : that.lateTupleStream != null) {
            return false;
        }
        return lag != null ? lag.equals(that.lag) : that.lag == null;

    }

    @Override
    public int hashCode() {
        int result = timestampField != null ? timestampField.hashCode() : 0;
        result = 31 * result + (lateTupleStream != null ? lateTupleStream.hashCode() : 0);
        result = 31 * result + (lag != null ? lag.hashCode() : 0);
        return result;
    }
}