Diffstat (limited to 'libopie2/opiepim/backend/opimaccessbackend.h') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | libopie2/opiepim/backend/opimaccessbackend.h | 22 |
1 files changed, 3 insertions, 19 deletions
diff --git a/libopie2/opiepim/backend/opimaccessbackend.h b/libopie2/opiepim/backend/opimaccessbackend.h index 15a7b7f..26af762 100644 --- a/libopie2/opiepim/backend/opimaccessbackend.h +++ b/libopie2/opiepim/backend/opimaccessbackend.h @@ -1,212 +1,196 @@ /* This file is part of the Opie Project Copyright (C) The Main Author <main-author@whereever.org> =. Copyright (C) The Opie Team <opie-devel@handhelds.org> .=l. .>+-= _;:, .> :=|. This program is free software; you can .> <`_, > . <= redistribute it and/or modify it under :`=1 )Y*s>-.-- : the terms of the GNU Library General Public .="- .-=="i, .._ License as published by the Free Software - . .-<_> .<> Foundation; either version 2 of the License, ._= =} : or (at your option) any later version. .%`+i> _;_. .i_,=:_. -<s. 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 ..}^=.= = ; Library General Public License for more ++= -. .` .: details. : = ...= . :.=- -. .:....=;==+<; You should have received a copy of the GNU -_. . . )=. = Library General Public License along with -- :-=` this library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifndef OPIE_PIM_ACCESS_BACKEND #define OPIE_PIM_ACCESS_BACKEND #include <qarray.h> #include <qdatetime.h> #include <opie2/opimtemplatebase.h> #include <opie2/opimrecord.h> namespace Opie { class OPimAccessBackendPrivate; /** * OPimAccessBackend is the base class * for all private backends * it operates on OPimRecord as the base class * and it's responsible for fast manipulating * the resource the implementation takes care * of */ template <class T = OPimRecord> class OPimAccessBackend { public: typedef OTemplateBase<T> Frontend; /** The access hint from the frontend */ OPimAccessBackend(int access = 0); virtual ~OPimAccessBackend(); /** * load the resource */ virtual bool load() = 0; /** * reload the resource */ virtual bool reload() = 0; /** * save the resource and * all it's changes */ virtual bool save() = 0; /** * return an array of * all available uids */ virtual QArray<int> allRecords()const = 0; /** * return a List of records * that match the regex */ virtual QArray<int> matchRegexp(const QRegExp &r) const = 0; /** * queryByExample for T with the given Settings * */ virtual QArray<int> queryByExample( const T& t, int settings, const QDateTime& d = QDateTime() ) = 0; /** * find the OPimRecord with uid @param uid * returns T and T.isEmpty() if nothing was found */ - virtual T find(int uid )const = 0; + virtual T find( int uid )const = 0; - virtual T find(int uid, const QArray<int>& items, + virtual T find( int uid, const QArray<int>& items, uint current, typename Frontend::CacheDirection ) const; /** * clear the back end */ virtual void clear() = 0; /** * add T */ virtual bool add( const T& t ) = 0; /** * remove */ virtual bool remove( int uid ) = 0; /** * replace a record with T.uid() */ virtual bool replace( const T& t ) = 0; /* * setTheFrontEnd!!! */ void setFrontend( Frontend* front ); /** * set the read ahead count */ void setReadAhead( uint count ); protected: int access()const; void cache( const T& t )const; - /** - * Returns the element with given uid out of the cache. - * Returns empty element if nothing was found. - * <b>Attention:</b> This just works if we have a frontend which contains the cache ! - */ - T cacheFind( int uid ) const; - /** * use a prime number here! */ void setSaneCacheSize( int ); uint readAhead()const; private: OPimAccessBackendPrivate *d; Frontend* m_front; uint m_read; int m_acc; }; template <class T> OPimAccessBackend<T>::OPimAccessBackend(int acc) : m_acc( acc ) { m_front = 0l; } template <class T> OPimAccessBackend<T>::~OPimAccessBackend() { } template <class T> void OPimAccessBackend<T>::setFrontend( Frontend* fr ) { m_front = fr; } template <class T> void OPimAccessBackend<T>::cache( const T& t )const { if ( m_front ) m_front->cache( t ); } -template <class T> -T OPimAccessBackend<T>::cacheFind( int uid )const { - if ( ! m_front ){ - qWarning ( "No frontend assigned ! Therefore we cannot access the cache to return the right element!" ); - return T(); - } - - return m_front->cacheFind( uid ); -} template <class T> void OPimAccessBackend<T>::setSaneCacheSize( int size) { if ( m_front ) m_front->setSaneCacheSize( size ); } template <class T> T OPimAccessBackend<T>::find( int uid, const QArray<int>&, uint, typename Frontend::CacheDirection ) const{ - qDebug( "*** Lookahead feature not supported. Fallback to default find!" ); + qDebug( "*** Lookahead feature not supported. Fallback to default find!!" ); return find( uid ); } template <class T> void OPimAccessBackend<T>::setReadAhead( uint count ) { m_read = count; } template <class T> uint OPimAccessBackend<T>::readAhead()const { return m_read; } template <class T> int OPimAccessBackend<T>::access()const { return m_acc; } } #endif |