AttributePool.hxx

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/*
 * Copyright (c) 2004 MUSIC TECHNOLOGY GROUP (MTG)
 *                         UNIVERSITAT POMPEU FABRA
 *
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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 General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#ifndef _AttributePool_hxx_
#define _AttributePool_hxx_

#include "DescriptionAttributes.hxx"

namespace CLAM
{
        class AttributePool : public Component
        {
        public:
                AttributePool()
                {
                        _data=0;
                        _size=0;
                        _attribute=0;
                }
                void SetDefinition(const AbstractAttribute & attribute)
                {
                        _attribute = & attribute;
                }
                const char * GetClassName() const { return "AttributePool"; }
                void StoreOn(Storage & storage) const
                {
                        _attribute->XmlDumpData(storage, _data, _size);
                }
                void LoadFrom(Storage & storage)
                {
                        _attribute->XmlRestoreData(storage, _data, _size);
                }
                void * GetData() { return _data; }
                const void * GetData() const { return _data; }
                void Allocate(unsigned size)
                {
                        _data = _attribute->Allocate(size);
                        _size=size;
                }
                void Deallocate()
                {
                        if (!_data) return;
                        _attribute->Deallocate(_data);
                        _data = 0;
                }
                void Insert(unsigned pos)
                {
                        _size++;
                        if (_data)
                                _attribute->Insert(_data,pos);
                }
                void Remove(unsigned pos)
                {
                        _size--;
                        if (_data)
                                _attribute->Remove(_data,pos);
                }
        private:
                void * _data;
                const AbstractAttribute * _attribute;
                unsigned _size;
        };
}


#endif// _AttributePool_hxx_