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Java example source code file (WordFreqAccumulator.java)

This example Java source code file (WordFreqAccumulator.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

accumulatorparam, counter, override, wordfreqaccumulator

The WordFreqAccumulator.java Java example source code

package org.deeplearning4j.spark.text.accumulators;

import org.apache.spark.AccumulatorParam;
import org.deeplearning4j.berkeley.Counter;

/**
 * @author jeffreytang
 */
public class WordFreqAccumulator implements AccumulatorParam<Counter {

    @Override
    public Counter<String> addInPlace(Counter c1, Counter c2) {
        c1.incrementAll(c2);
        return c1;
    }
    @Override
    public Counter<String> zero(Counter initialCounter) {
        return new Counter<>();
    }

    @Override
    public Counter<String> addAccumulator(Counter c1, Counter c2) {
        if (c1 == null) {
            return new Counter<>();
        }
        addInPlace(c1, c2);
        return c1;
    }
}

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