1 package org.djunits.value;
2
3 /**
4 * Possible ways to store vectors and matrices, e.g. DENSE or SPARSE.
5 * <p>
6 * Copyright (c) 2013-2018 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
7 * BSD-style license. See <a href="http://opentrafficsim.org/docs/license.html">OpenTrafficSim License</a>.
8 * </p>
9 * $LastChangedDate: 2015-07-24 02:58:59 +0200 (Fri, 24 Jul 2015) $, @version $Revision: 1147 $, by $Author: averbraeck $,
10 * initial version Oct 9, 2015 <br>
11 * @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
12 * @author <a href="http://www.tudelft.nl/pknoppers">Peter Knoppers</a>
13 */
14 public enum StorageType
15 {
16 /**
17 * Dense storage. Use Dense to store small quantities of values, or values where zero is not common, or larger access times
18 * are unacceptable, or memory availability is high.
19 */
20 DENSE,
21
22 /**
23 * Sparse storage. Use Sparse to store large quantities of values when most are zero and larger access times are acceptable
24 * and memory availability is low. Changing a zero value to a non-zero value is CPU-time-expensive
25 */
26 SPARSE;
27 }