net.sf.staccatocommons.lang.thunk.internal.NullThunk Maven / Gradle / Ivy

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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.lang.thunk.internal;

import java.io.Serializable;

import net.sf.staccatocommons.defs.Thunk;
import net.sf.staccatocommons.restrictions.Constant;

/**
 * Thunk of null
 * 
 * @author flbulgarelli
 */
public class NullThunk implements Thunk, Serializable {

  private static final long serialVersionUID = 5879607480007179549L;

  @Override
  public T value() {
    return null;
  }

  /**
   * @return an instance
   */
  @Constant
  public static  Thunk null_() {
    return new NullThunk();
  }
}