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Collections library of the Staccato-Commons project, focused on providing new abstractions that mix object oriented and functional programming style for dealing with iterable objects.

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/*
 Copyright (c) 2011, The Staccato-Commons Team

 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU Lesser General Public License as published by
 the Free Software Foundation; version 3 of the License.

 This program 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 Lesser General Public License for more details.
 */
package net.sf.staccatocommons.collections.internal.iterator;

import net.sf.staccatocommons.defs.Thunk;
import net.sf.staccatocommons.defs.function.Function;
import net.sf.staccatocommons.iterators.thriter.AdvanceThriterator;
import net.sf.staccatocommons.iterators.thriter.Thriter;
import net.sf.staccatocommons.restrictions.check.NonNull;

/**
 * @author flbulgarelli
 * 
 */
public class MapIterator extends AdvanceThriterator {

  private final Function function;
  private final Thriter thriter;

  /**
   * Creates a new {@link MapIterator}
   */
  public MapIterator(@NonNull Function function, @NonNull Thriter thriter) {
    this.function = function;
    this.thriter = thriter;
  }

  @Override
  public boolean hasNext() {
    return thriter.hasNext();
  }

  @Override
  public void advanceNext() {
    thriter.advanceNext();
  }

  @Override
  public B current() {
    return function.apply(thriter.current());
  }

  @Override
  public Thunk delayedCurrent() {
    return (Thunk) function.delayedValue(thriter.delayedCurrent());
  }
}