Oracle Coherence for C++ API
Release 3.7.0.0

E18684-01

coherence/util/HashSet.hpp

00001 /*
00002 * HashSet.hpp
00003 *
00004 * Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
00005 *
00006 * Oracle is a registered trademarks of Oracle Corporation and/or its
00007 * affiliates.
00008 *
00009 * This software is the confidential and proprietary information of Oracle
00010 * Corporation. You shall not disclose such confidential and proprietary
00011 * information and shall use it only in accordance with the terms of the
00012 * license agreement you entered into with Oracle.
00013 *
00014 * This notice may not be removed or altered.
00015 */
00016 #ifndef COH_HASH_SET_HPP
00017 #define COH_HASH_SET_HPP
00018 
00019 #include "coherence/lang.ns"
00020 
00021 #include "coherence/util/MappedSet.hpp"
00022 
00023 COH_OPEN_NAMESPACE2(coherence,util)
00024 
00025 
00026 /**
00027 * Set implementation which is backed by a HashMap.
00028 *
00029 * @author mf  2008.02.25
00030 */
00031 class COH_EXPORT HashSet
00032     : public cloneable_spec<HashSet,
00033         extends<MappedSet> >
00034     {
00035     friend class factory<HashSet>;
00036 
00037     // ----- constructors ---------------------------------------------------
00038 
00039     protected:
00040         /**
00041         * Construct a hash set using the specified settings.
00042         *
00043         * @param cInitialBuckets  the initial number of hash buckets,
00044         *                         0 &lt; n
00045         * @param flLoadFactor     the acceptable load factor before resizing
00046         *                         occurs, 0 &lt; n, such that a load factor
00047         *                         of 1.0 causes resizing when the number of
00048         *                         entries exceeds the number of buckets
00049         * @param flGrowthRate     the rate of bucket growth when a resize
00050         *                         occurs, 0 &lt; n, such that a growth rate
00051         *                         of 1.0 will double the number of buckets:
00052         *                         bucketcount = bucketcount * (1 + growthrate)
00053         */
00054         HashSet(size32_t cInitialBuckets = 17,
00055                 float32_t flLoadFactor = 1.0F,
00056                 float32_t flGrowthRate = 3.0F);
00057 
00058         /**
00059         * Copy constructor.
00060         */
00061         HashSet(const HashSet& that);
00062     };
00063 
00064 COH_CLOSE_NAMESPACE2
00065 
00066 #endif // COH_HASH_SET
Copyright © 2000, 2011, Oracle and/or its affiliates. All rights reserved.