org.infinispan.stream.impl.intops.object.MapToDoubleOperation Maven / Gradle / Ivy

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Infinispan Embedded All-in-One module

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package org.infinispan.stream.impl.intops.object;

import org.infinispan.stream.impl.intops.IntermediateOperation;

import java.util.function.ToDoubleFunction;
import java.util.stream.DoubleStream;
import java.util.stream.Stream;

/**
 * Performs map to double operation on a regular {@link Stream}
 * @param  the type of the input stream
 */
public class MapToDoubleOperation implements IntermediateOperation, Double, DoubleStream> {
   private final ToDoubleFunction function;

   public MapToDoubleOperation(ToDoubleFunction function) {
      this.function = function;
   }

   @Override
   public DoubleStream perform(Stream stream) {
      return stream.mapToDouble(function);
   }

   public ToDoubleFunction getFunction() {
      return function;
   }
}