AttributeManager.java

// $Id$
/* ====================================================================
 * Copyright (c) 2002-2003, Christophe Labouisse
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above
 *    copyright notice, this list of conditions and the following
 *    disclaimer in the documentation and/or other materials provided
 *    with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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 */

package net.ggtools.grand.graph;


/**
 * Abstract class to manage {@link net.ggtools.grand.graph.GraphObject}'s attributes.
 *
 * @author Christophe Labouisse
 */
abstract class AttributeManager implements GraphObject {
    /**
     * Field attributes.
     */
    private int attributes = 0;

    /**
     * Method setAttributes.
     * @param attributeMask int
     * @see net.ggtools.grand.graph.GraphObject#setAttributes(int)
     */
    public void setAttributes(final int attributeMask) {
        attributes |= attributeMask;
    }

    /**
     * Method getAttributes.
     * @return int
     * @see net.ggtools.grand.graph.GraphObject#getAttributes()
     */
    public int getAttributes() {
        return attributes;
    }

    /**
     * Method clearAttributes.
     * @param attributeMask int
     * @see net.ggtools.grand.graph.GraphObject#clearAttributes(int)
     */
    public void clearAttributes(final int attributeMask) {
        attributes &= ~attributeMask;
    }

    /**
     * Method hasAttributes.
     * @param attributeMask int
     * @return boolean
     * @see net.ggtools.grand.graph.GraphObject#hasAttributes(int)
     */
    public boolean hasAttributes(final int attributeMask) {
        return (attributes & attributeMask) == attributeMask;
    }

}