ICalculator.java

/*******************************************************************************
 * Copyright (c) 2013 Dirk Fauth and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Dirk Fauth <dirk.fauth@gmail.com> - initial API and implementation
 *******************************************************************************/
package org.eclipse.nebula.widgets.nattable.util;

/**
 * Interface that is used by the CalculatedValueCache to calculate values in a
 * background process. In a modern world this would be better implemented as a
 * function/lambda, but as we need to work with Java 6, there are no lambdas yet
 * and so we need to work with anonymous inner classes.
 *
 * @author Dirk Fauth
 *
 * @see CalculatedValueCache
 */
public interface ICalculator {

    /**
     * Will execute the calculation of a value.
     *
     * @return The value that is calculated in a background process.
     */
    Object executeCalculation();
}