Dataquay: Connection.h Source File

00001 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
00002 
00003 /*
00004     Dataquay
00005 
00006     A C++/Qt library for simple RDF datastore management with Redland.
00007     Copyright 2009 Chris Cannam.
00008   
00009     Permission is hereby granted, free of charge, to any person
00010     obtaining a copy of this software and associated documentation
00011     files (the "Software"), to deal in the Software without
00012     restriction, including without limitation the rights to use, copy,
00013     modify, merge, publish, distribute, sublicense, and/or sell copies
00014     of the Software, and to permit persons to whom the Software is
00015     furnished to do so, subject to the following conditions:
00016 
00017     The above copyright notice and this permission notice shall be
00018     included in all copies or substantial portions of the Software.
00019 
00020     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
00021     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00022     MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00023     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
00024     ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
00025     CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
00026     WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00027 
00028     Except as contained in this notice, the name of Chris Cannam
00029     shall not be used in advertising or otherwise to promote the sale,
00030     use or other dealings in this Software without prior written
00031     authorization.
00032 */
00033 
00034 #ifndef _DATAQUAY_CONNECTION_H_
00035 #define _DATAQUAY_CONNECTION_H_
00036 
00037 #include "Store.h"
00038 
00039 namespace Dataquay
00040 {
00041         
00042 class TransactionalStore;
00043 class Transaction;
00044 
00074 class Connection : public Store
00075 {
00076 public:
00082     Connection(TransactionalStore *ts);
00083 
00088     ~Connection();
00089 
00093     void commit();
00094 
00100     void rollback();
00101 
00102     // Store interface
00103     bool add(Triple t);
00104     bool remove(Triple t);
00105     void change(ChangeSet changes);
00106     void revert(ChangeSet changes);
00107     bool contains(Triple t) const;
00108     Triples match(Triple t) const;
00109     ResultSet query(QString sparql) const;
00110     Triple matchFirst(Triple t) const;
00111     Node queryFirst(QString sparql, QString bindingName) const;
00112     QUrl getUniqueUri(QString prefix) const;
00113     QUrl expand(QString uri) const;
00114 
00115 private:
00116     class D;
00117     D *m_d;
00118 };
00119 
00120 }
00121 
00122 #endif