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/******************************************************************************
* $Id: datastream.hpp 1385 2009-08-13 15:45:16Z hobu $
*
* Project: libsidx - A C API wrapper around libspatialindex
* Purpose: C++ object declarations to implement the datastream.
* Author: Howard Butler, hobu.inc@gmail.com
*
******************************************************************************
* Copyright (c) 2009, Howard Butler
*
* All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
* This library 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 Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
****************************************************************************/
#pragma once
class DataStream : public SpatialIndex::IDataStream
{
public:
DataStream(int (*readNext)(SpatialIndex::id_type* id, double **pMin, double **pMax, uint32_t *nDimension, const uint8_t **pData, uint32_t *nDataLength));
~DataStream();
SpatialIndex::IData* getNext();
bool hasNext() throw (Tools::NotSupportedException);
uint32_t size() throw (Tools::NotSupportedException);
void rewind() throw (Tools::NotSupportedException);
protected:
SpatialIndex::RTree::Data* m_pNext;
SpatialIndex::id_type m_id;
private:
int (*iterfunct)(SpatialIndex::id_type *id, double **pMin, double **pMax, uint32_t *nDimension, const uint8_t **pData, uint32_t *nDataLength);
bool readData();
bool m_bDoneReading;
};
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