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• StringAggregators.java

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org.dflib.exp.agg.StringAggregators Maven / Gradle / Ivy

package org.dflib.exp.agg;

import org.dflib.Series;

import java.util.function.Function;
import java.util.stream.Collectors;

/**
 * @since 0.11
 */
public class StringAggregators {

    public static  Function, String> vConcat(String delimiter) {
        return CollectorAggregator.create(Collectors.joining(delimiter), String::valueOf);
    }

    public static  Function, String> vConcat(String delimiter, String prefix, String suffix) {
        return CollectorAggregator.create(Collectors.joining(delimiter, prefix, suffix), String::valueOf);
    }
}