code: /***************************************************************************
   *   Copyright 2009-2015 (C) by Fabrizio Montesi <famontesi@gmail.com>     *
   *                                                                         *
   *   This program is free software; you can redistribute it and/or modify  *
   *   it under the terms of the GNU Library General Public License as       *
   *   published by the Free Software Foundation; either version 2 of the    *
   *   License, or (at your option) any later version.                       *
   *                                                                         *
   *   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 General Public License for more details.                          *
   *                                                                         *
   *   You should have received a copy of the GNU Library General Public     *
   *   License along with this program; if not, write to the                 *
   *   Free Software Foundation, Inc.,                                       *
   *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
   *                                                                         *
   *   For details about the authors of this software, see the AUTHORS file. *
   ***************************************************************************/
  
  package jolie.runtime;
  
  import java.util.function.BiPredicate;
  
  /**
   * A CompareOperator performs some kind of boolean comparison between two values.
   * @author Fabrizio Montesi
   */
  public final class CompareOperators
  {
  	public final static BiPredicate< Value, Value > EQUAL =
  		( left, right ) -> left.equals( right );
  	public final static BiPredicate< Value, Value > NOT_EQUAL = EQUAL.negate();
  	public final static BiPredicate< Value, Value > MINOR =
  		( left, right ) -> {
  			if ( left.isDouble() ) {
  				return ( left.doubleValue() < right.doubleValue() );
  			} if ( left.isLong() ) {
  				return ( left.longValue() < right.longValue() );
  			} else {
  				return ( left.intValue() < right.intValue() );
  			}
  		};
  	public final static BiPredicate< Value, Value > MAJOR =
  		( left, right ) -> {
  			if ( left.isDouble() ) {
  				return ( left.doubleValue() > right.doubleValue() );
  			} if ( left.isLong() ) {
  				return ( left.longValue() > right.longValue() );
  			} else {
  				return ( left.intValue() > right.intValue() );
  			}
  		};
  	public final static BiPredicate< Value, Value > MINOR_OR_EQUAL =
  		( left, right ) -> {
  			if ( left.isDouble() ) {
  				return ( left.doubleValue() <= right.doubleValue() );
  			} if ( left.isLong() ) {
  				return ( left.longValue() <= right.longValue() );
  			} else {
  				return ( left.intValue() <= right.intValue() );
  			}
  		};
  	public final static BiPredicate< Value, Value > MAJOR_OR_EQUAL =
  		( left, right ) -> {
  			if ( left.isDouble() ) {
  				return ( left.doubleValue() >= right.doubleValue() );
  			} if ( left.isLong() ) {
  				return ( left.longValue() >= right.longValue() );
  			} else {
  				return ( left.intValue() >= right.intValue() );
  			}
  		};
  }
  