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annotate src/EDU/oswego/cs/dl/util/concurrent/DefaultChannelCapacity.java @ 27:511648fa4d64 Version 2.1

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Version to 2.1
author Dan Creswell <dan.creswell@gmail.com>
date Mon, 04 Jan 2010 13:00:40 +0000
parents 3dc0c5604566
children
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1 /*
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2 File: DefaultChannelCapacity.java
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3
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4 Originally written by Doug Lea and released into the public domain.
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5 This may be used for any purposes whatsoever without acknowledgment.
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6 Thanks for the assistance and support of Sun Microsystems Labs,
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7 and everyone contributing, testing, and using this code.
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8
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9 History:
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10 Date Who What
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11 11Jun1998 dl Create public version
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12 */
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13
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14 package EDU.oswego.cs.dl.util.concurrent;
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15
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16 /**
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17 * A utility class to set the default capacity of
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18 * BoundedChannel
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19 * implementations that otherwise require a capacity argument
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20 * @see BoundedChannel
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21 * [<a href="http://gee.cs.oswego.edu/dl/classes/EDU/oswego/cs/dl/util/concurrent/intro.html"> Introduction to this package. </a>] <p>
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22 **/
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23
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24 public class DefaultChannelCapacity {
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25
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26 /** The initial value of the default capacity is 1024 **/
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27 public static final int INITIAL_DEFAULT_CAPACITY = 1024;
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28
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29 /** the current default capacity **/
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30 private static final SynchronizedInt defaultCapacity_ =
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31 new SynchronizedInt(INITIAL_DEFAULT_CAPACITY);
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32
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33 /**
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34 * Set the default capacity used in
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35 * default (no-argument) constructor for BoundedChannels
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36 * that otherwise require a capacity argument.
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37 * @exception IllegalArgumentException if capacity less or equal to zero
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38 */
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39 public static void set(int capacity) {
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40 if (capacity <= 0) throw new IllegalArgumentException();
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41 defaultCapacity_.set(capacity);
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42 }
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43
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44 /**
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45 * Get the default capacity used in
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46 * default (no-argument) constructor for BoundedChannels
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47 * that otherwise require a capacity argument.
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48 * Initial value is <code>INITIAL_DEFAULT_CAPACITY</code>
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49 * @see #INITIAL_DEFAULT_CAPACITY
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50 */
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51 public static int get() {
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52 return defaultCapacity_.get();
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53 }
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54 }