HandleSetIndex.h

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/*
 * opencog/atomspace/HandleIndex.h
 *
 * Copyright (C) 2008,2009,2013 Linas Vepstas <linasvepstas@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License v3 as
 * published by the Free Software Foundation and including the exceptions
 * at http://opencog.org/wiki/Licenses
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program; if not, write to:
 * Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef _OPENCOG_HANDLE_SET_INDEX_H
#define _OPENCOG_HANDLE_SET_INDEX_H

#include <cstddef>
#include <map>

#include <opencog/atomspace/Handle.h>

namespace opencog
{
class HandleSetIndex
{
    private:
        std::map<Handle, const UnorderedHandleSet> idx;

    public:
        void insert(Handle h, const UnorderedHandleSet& uset)
        {
            idx.insert(std::pair<Handle, const UnorderedHandleSet>(h, uset));
        }
        const UnorderedHandleSet& get(Handle h) const
        {
            std::map<Handle, const UnorderedHandleSet>::const_iterator it;
            it = idx.find(h);
            if (it != idx.end()) return it->second;
            static UnorderedHandleSet empty;
            return empty;
        }
        void remove(Handle h)
        {
            idx.erase(h);
        }
        size_t size(void) const
        {
            return idx.size();
        }
        void remove(bool (*)(const UnorderedHandleSet&));
        void remove(bool (*)(Handle));
};

} //namespace opencog

#endif // _OPENCOG_HANDLE_SET_INDEX_H