c++/util/Properties.h

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00001 /*
00002  * Copyright (c) 2004 Beeyond Software Holding BV
00003  *
00004  * This library is free software; you can redistribute it and/or
00005  * modify it under the terms of the GNU Lesser General Public
00006  * License as published by the Free Software Foundation; either
00007  * version 2.1 of the License, or (at your option) any later version.
00008  *
00009  * This library is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012  * Lesser General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU Lesser General Public
00015  * License along with this library; if not, write to the Free Software
00016  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00017  */
00018 
00023 #ifndef _CLASS_PROPERTIES_H
00024 #define _CLASS_PROPERTIES_H
00025 
00026 #ifdef __cplusplus
00027 
00028 #include "beecrypt/c++/mutex.h"
00029 using beecrypt::mutex;
00030 #include "beecrypt/c++/io/InputStream.h"
00031 using beecrypt::io::InputStream;
00032 #include "beecrypt/c++/io/OutputStream.h"
00033 using beecrypt::io::OutputStream;
00034 #include "beecrypt/c++/lang/Object.h"
00035 using beecrypt::lang::Object;
00036 #include "beecrypt/c++/lang/String.h"
00037 using beecrypt::lang::String;
00038 #include "beecrypt/c++/util/Enumeration.h"
00039 using beecrypt::util::Enumeration;
00040 
00041 #include <map>
00042 using std::map;
00043 
00044 namespace beecrypt {
00045     namespace util {
00048         class BEECRYPTCXXAPI Properties : public beecrypt::lang::Object
00049         {
00050         private:
00051             typedef map<String,String> properties_map;
00052 
00053             class PropEnum : public Enumeration
00054             {
00055             public:
00056                 properties_map::const_iterator _it;
00057                 properties_map::const_iterator _end;
00058 
00059             public:
00060                 PropEnum(const properties_map& map) throw ();
00061                 virtual ~PropEnum() throw ();
00062 
00063                 virtual bool hasMoreElements() throw ();
00064                 virtual const void* nextElement() throw (NoSuchElementException);
00065             };
00066 
00067             properties_map _pmap;
00068             mutex _lock;
00069 
00070         protected:
00071             const Properties* defaults;
00072 
00073         public:
00074             Properties();
00075             Properties(const Properties& copy);
00076             Properties(const Properties* defaults);
00077             virtual ~Properties();
00078 
00079             const String* getProperty(const String& key) const throw ();
00080             const String* getProperty(const String& key, const String& defaultValue) const throw ();
00081 
00082             void setProperty(const String& key, const String& value) throw ();
00083 
00084             Enumeration* propertyNames() const;
00085 
00086             void load(InputStream& in) throw (IOException);
00087             void store(OutputStream& out, const String& header) throw (IOException);
00088         };
00089     }
00090 }
00091 
00092 #endif
00093 
00094 #endif

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