/*
 * Copyright 2007, Ingo Weinhold, ingo_weinhold@gmx.de.
 * All rights reserved. Distributed under the terms of the MIT license.
 */
#ifndef ATTRIBUTE_INDEX_IMPL_H
#define ATTRIBUTE_INDEX_IMPL_H

#include "AttributeIndex.h"

// AttributeIndexImpl
class AttributeIndexImpl : public AttributeIndex {
public:
        AttributeIndexImpl(Volume *volume, const char *name, uint32 type,
                                           size_t keyLength);
        virtual ~AttributeIndexImpl();

        virtual int32 CountEntries() const;

        virtual status_t Changed(Attribute *attribute,
                                                         const uint8 *oldKey, size_t oldLength);

private:
        virtual status_t Added(Attribute *attribute);
        virtual bool Removed(Attribute *attribute);

protected:
        virtual AbstractIndexEntryIterator *InternalGetIterator();
        virtual AbstractIndexEntryIterator *InternalFind(const uint8 *key,
                                                                                                         size_t length);

private:
        class Iterator;
        class IteratorList;
        class AttributeTree;

        class PrimaryKey;
        class GetPrimaryKey;
        class PrimaryKeyCompare;

        friend class Iterator;

private:
        void _AddIterator(Iterator *iterator);
        void _RemoveIterator(Iterator *iterator);

private:
        AttributeTree   *fAttributes;
        IteratorList    *fIterators;
};

#endif  // ATTRIBUTE_INDEX_IMPL_H