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/**
 * JBoss, Home of Professional Open Source
 * Copyright 2013, Red Hat, Inc. and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This 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; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jboss.arquillian.graphene.wait;


/**
 * @author Jan Papousek
 */
public abstract class AbstractNegatable implements Negatable {

    private boolean negation = false;

    @Override
    public T not() {
        AbstractNegatable copy = (AbstractNegatable) copy();
        copy.setNegation(!this.getNegation());
        return (T) copy;
    }

    protected final boolean getNegation() {
        return negation;
    }

    protected final void setNegation(boolean negation) {
        this.negation = negation;
    }

    protected abstract T copy();

}