/*

  * Operation.java

  *

  * Created on July 12, 2006, 2:26 PM

  *

  * To change this template, choose Tools | Template Manager

  * and open the template in the editor.

  */

 package org.netbeans.apifest.boolcircuit;

 /**

  *

  */

 public abstract class Operation {

     private boolean used;

     /** Creates a new instance of Operation */

     protected Operation() {

     }

     public abstract boolean performBooleanOperation();

     final void markOperationAsUsed() {

         used = true;

     }

     final boolean isUsed() {

         return used;

     }

     public abstract double performRealOperation();

 }