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path: root/libopie2/opiepim/backend/opimaccessbackend.h
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-rw-r--r--libopie2/opiepim/backend/opimaccessbackend.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/libopie2/opiepim/backend/opimaccessbackend.h b/libopie2/opiepim/backend/opimaccessbackend.h
index 0682063..15a7b7f 100644
--- a/libopie2/opiepim/backend/opimaccessbackend.h
+++ b/libopie2/opiepim/backend/opimaccessbackend.h
@@ -125,15 +125,23 @@ public:
/**
* 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;
@@ -161,20 +169,32 @@ void OPimAccessBackend<T>::setFrontend( Frontend* 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!" );
return find( uid );
}
template <class T>
void OPimAccessBackend<T>::setReadAhead( uint count ) {
m_read = count;
}