EvictionPolicyComparator.h

/*
 * Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#ifndef HAZELCAST_CLIENT_INTERNAL_EVICTION_EVICTIONPOLICYCOMPARATOR_H_
#define HAZELCAST_CLIENT_INTERNAL_EVICTION_EVICTIONPOLICYCOMPARATOR_H_

#include <assert.h>

#include "hazelcast/util/Comparator.h"
#include "hazelcast/client/internal/eviction/EvictableEntryView.h"

#if  defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
#pragma warning(push)
#pragma warning(disable: 4251) //for dll export
#endif

namespace hazelcast {
    namespace client {
        namespace internal {
            namespace eviction {
                template<typename K, typename V>
                class EvictionPolicyComparator : util::Comparator<EvictableEntryView<K, V> > {
                public:
                    virtual ~EvictionPolicyComparator() {
                    }

                    static const int FIRST_ENTRY_HAS_HIGHER_PRIORITY_TO_BE_EVICTED = -1;

                    static const int SECOND_ENTRY_HAS_HIGHER_PRIORITY_TO_BE_EVICTED = +1;

                    static const int BOTH_OF_ENTRIES_HAVE_SAME_PRIORITY_TO_BE_EVICTED = 0;

                    //@Override
                    virtual int compare(const EvictableEntryView<K, V> *e1, const EvictableEntryView<K, V> *e2) const {
                        assert(0);
                        return 0;
                    }
                };
            }
        }
    }
};

#if  defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
#pragma warning(pop)
#endif

#endif /* HAZELCAST_CLIENT_INTERNAL_EVICTION_EVICTIONPOLICYCOMPARATOR_H_ */