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#if ! defined INCLUDED_DP_PERSMAP_H
#define INCLUDED_DP_PERSMAP_H

#include "rtl/ustring.hxx"
#include "db.hxx"
#include <hash_map>

using namespace berkeleydbproxy;

namespace dp_misc
{

typedef ::std::hash_map<
    ::rtl::OString, ::rtl::OString, ::rtl::OStringHash > t_string2string_map;

//==============================================================================
class PersistentMap
{
    ::rtl::OUString m_sysPath;
    mutable Db m_db;
    void throw_rtexc( int err, char const * msg = 0 ) const;
    
public:
    ~PersistentMap();
    PersistentMap( ::rtl::OUString const & url, bool readOnly );
    /** in mem db */
    PersistentMap();
    
    bool has( ::rtl::OString const & key ) const;
    bool get( ::rtl::OString * value, ::rtl::OString const & key ) const;
    t_string2string_map getEntries() const;
    void put( ::rtl::OString const & key, ::rtl::OString const & value );
    bool erase( ::rtl::OString const & key, bool flush_immediately = true );
};

}

#endif