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Implementing engine of fundamental utility classes used by netroles library

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/*
 * This file is part of netroles.
 *
 * netroles is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * netroles is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with netroles.  If not, see .
 */

package ch.ethz.sn.visone3.lang.impl.iterators;

import java.util.Iterator;
import java.util.Objects;
import java.util.function.Function;

final class MapIterable implements Iterable {
  private final Iterable iterable;
  private final Function map;

  public MapIterable(final Iterable iterable, final Function map) {
    this.iterable = Objects.requireNonNull(iterable);
    this.map = Objects.requireNonNull(map);
  }

  @Override
  public Iterator iterator() {
    return new MapIterator<>(iterable.iterator(), map);
  }
}