HadoopInputSplit.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.hadoop;

import java.io.Externalizable;

/**
 * Abstract fragment of an input data source.
 */
public abstract class HadoopInputSplit implements Externalizable {
    /** */
    protected String[] hosts;

    /**
     * Array of hosts where this input split resides.
     *
     * @return Hosts.
     */
    public String[] hosts() {
        assert hosts != null;

        return hosts;
    }

    /**
     * This method must be implemented for purpose of internal implementation.
     *
     * @param obj Another object.
     * @return {@code true} If objects are equal.
     */
    @Override public abstract boolean equals(Object obj);

    /**
     * This method must be implemented for purpose of internal implementation.
     *
     * @return Hash code of the object.
     */
    @Override public abstract int hashCode();
}