File indexing completed on 2024-05-19 04:49:31

 /****************************************************************************************
  * Copyright (c) 2007 Maximilian Kossick <maximilian.kossick@googlemail.com>            *
  *                                                                                      *
  * This program is free software; you can redistribute it and/or modify it under        *
  * the terms of the GNU General Public License as published by the Free Software        *
  * Foundation; either version 2 of the License, or (at your option) any later           *
  * version.                                                                             *
  *                                                                                      *
  * This program 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 General Public License for more details.             *
  *                                                                                      *
  * You should have received a copy of the GNU General Public License along with         *
  * this program.  If not, see <http://www.gnu.org/licenses/>.                           *
  ****************************************************************************************/
 
 #ifndef AMAROK_SQLSTORAGE_H
 #define AMAROK_SQLSTORAGE_H
 
 #include "core/amarokcore_export.h"
 
 #include <QMetaType>
 #include <QString>
 #include <QStringList>
 
 /** The abstract SqlStorage engine
     Only current implementations are in core-impl/collections/db/sql
 */
 class SqlStorage
 {
 public:
     SqlStorage() {}
     virtual ~SqlStorage() {}
 
     virtual QString escape( const QString &text ) const = 0;
 
     virtual QStringList query( const QString &query ) = 0;
     virtual int insert( const QString &statement, const QString &table ) = 0;
 
     virtual QString boolTrue() const = 0;
     virtual QString boolFalse() const = 0;
 
     /**
         use this type for auto incrementing integer primary keys.
     */
     virtual QString idType() const = 0;
 
     virtual QString textColumnType( int length = 255 ) const = 0;
     virtual QString exactTextColumnType( int length = 1000 ) const = 0;
     //the below value may have to be decreased even more for different indexes; only time will tell
     virtual QString exactIndexableTextColumnType( int length = 324 ) const = 0;
     virtual QString longTextColumnType() const = 0;
     virtual QString randomFunc() const = 0;
 
     /** Returns a list of the last sql errors.
       The list might not include every one error if the number
       is beyond a sensible limit.
       */
     virtual QStringList getLastErrors() const = 0;
 
     /** Clears the list of the last errors. */
     virtual void clearLastErrors() = 0;
 
 };
 
 Q_DECLARE_METATYPE( SqlStorage * )
 
 #endif