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/* StandardOperator.java
* =========================================================================
* This file is part of the GrInvIn project - http://www.grinvin.org
*
* Copyright (C) 2005-2008 Universiteit Gent
*
* This program 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 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.
*
* A copy of the GNU General Public License can be found in the file
* LICENSE.txt provided with the source distribution of this program (see
* the META-INF directory in the source jar). This license can also be
* found on the GNU website at http://www.gnu.org/licenses/gpl.html.
*
* If you did not receive a copy of the GNU General Public License along
* with this program, contact the lead developer, or write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
package org.grinvin.expr;
/**
* Enum to represent operators in formula.
*/
public enum StandardOperator implements Operator {
PLUS("+", 2, 40),
MINUS("-", 2, 40),
TIMES("*", 2, 60),
DIV("/", 2, 60), // TODO: strength for formulas is different as for strings
POW("^", 2, 80),
NEG("-", 1, 70),
LE("<=", 2, 30);
//
private final String symbol;
public String getSymbol() {
return symbol;
}
//
private final int numberOfArguments;
public int getNumberOfArguments() {
return numberOfArguments;
}
//
private final int strength;
public int getStrength() {
return strength;
}
StandardOperator(String symbol, int numberOfArguments, int strength) {
this.symbol = symbol;
this.numberOfArguments = numberOfArguments;
this.strength = strength;
}
}
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