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/*
* Copyright (C) 2008-2009 Patrick Ohly <patrick.ohly@gmx.de>
*
* 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) version 3.
*
* 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
*/
#ifndef INCL_EVOLUTION_STRING_DATA_BLOB
# define INCL_EVOLUTION_STRING_DATA_BLOB
#include <syncevo/DataBlob.h>
#include <boost/shared_ptr.hpp>
#include <string>
#include <syncevo/declarations.h>
SE_BEGIN_CXX
/**
* Stores data chunk in memory.
* Ownership of that memory is shared.
*/
class StringDataBlob : public DataBlob
{
std::string m_name;
boost::shared_ptr<std::string> m_data;
bool m_readonly;
public:
/**
* @param name name for the data blob
* @param data reference to string holding data, NULL pointer if it doesn't exist
* @param readonly true if write() is meant to fail
*/
StringDataBlob(const std::string &name,
const boost::shared_ptr<std::string> &data,
bool readonly);
virtual boost::shared_ptr<std::ostream> write();
virtual boost::shared_ptr<std::istream> read();
virtual boost::shared_ptr<std::string> getData() { return m_data; }
virtual std::string getName() const { return m_name; }
virtual bool exists() const { return m_data; }
virtual bool isReadonly() const { return m_readonly; }
};
SE_END_CXX
#endif // INCL_EVOLUTION_STRING_DATA_BLOB
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