1 files changed, 54 insertions, 3 deletions

diff --git a/libopie/pim/opimaccesstemplate.h b/libopie/pim/opimaccesstemplate.h
index 31ab516..92d7192 100644
--- a/libopie/pim/opimaccesstemplate.h
+++ b/libopie/pim/opimaccesstemplate.h
@@ -1,196 +1,247 @@
 #ifndef OPIE_PIM_ACCESS_TEMPLATE_H
 #define OPIE_PIM_ACCESS_TEMPLATE_H
 
 #include <qarray.h>
 
 #include <opie/opimrecord.h>
 #include <opie/opimaccessbackend.h>
 #include <opie/orecordlist.h>
 
+#include "opimcache.h"
 #include "otemplatebase.h"
 
 /**
  * Thats the frontend to our OPIE PIM
  * Library. Either you want to use it's
  * interface or you want to implement
  * your own Access lib
  * Just create a OPimRecord and inherit from
  * the plugins
  */
 
 template <class T = OPimRecord >
 class OPimAccessTemplate : public OTemplateBase<T> {
 public:
     typedef ORecordList<T> List;
     typedef OPimAccessBackend<T> BackEnd;
+    typedef OPimCache<T> Cache;
 
     /**
      * our sort order
      * should be safe explaining
      */
     enum SortOrder { WildCards = 0, IgnoreCase = 1,
                      RegExp = 2, ExactMatch = 4 };
 
     /**
      * c'tor BackEnd
      */
     OPimAccessTemplate( BackEnd* end);
     virtual ~OPimAccessTemplate();
 
     /**
      * load from the backend
      */
     virtual bool load();
 
     /**
      * reload from the backend
      */
     virtual bool reload();
 
     /**
      * save to the backend
      */
     virtual bool save();
 
     /**
      * if the resource was changed externally
      */
     bool wasChangedExternally()const;
 
     /**
      * return a List of records
      * you can iterate over them
      */
     virtual List allRecords()const;
 
     /**
      * queryByExample
      */
     virtual List queryByExample( const T& t, int sortOrder );
 
     /**
      * find the OPimRecord uid
      */
     virtual T find( int uid )const;
 
+    /**
+     * read ahead cache find method ;)
+     */
+    virtual T find( int uid, const QArray<int>&,
+                    uint current, CacheDirection dir = Forward )const;
+
     /* invalidate cache here */
     /**
      * clears the backend and invalidates the backend
      */
     virtual void clear() ;
 
     /**
      * add T to the backend
      */
     virtual bool add( const T& t ) ;
 
     /* only the uid matters */
     /**
      * remove T from the backend
      */
     virtual bool remove( const T& t );
 
     /**
      * remove the OPimRecord with uid
      */
     virtual bool remove( int uid );
 
     /**
      * replace T from backend
      */
     virtual bool replace( const T& t) ;
+
+    /**
+     * @internal
+     */
+    void cache( const T& )const;
+    void setSaneCacheSize( int );
 protected:
     /**
      * invalidate the cache
      */
     void invalidateCache();
 
     void setBackEnd( BackEnd* end );
     /**
      * returns the backend
      */
     BackEnd* backEnd();
     BackEnd* m_backEnd;
+    Cache m_cache;
 
 };
 
 template <class T>
 OPimAccessTemplate<T>::OPimAccessTemplate( BackEnd* end )
     : OTemplateBase<T>(), m_backEnd( end )
 {
-
+    if (end )
+        end->setFrontend( this );
 }
 template <class T>
 OPimAccessTemplate<T>::~OPimAccessTemplate() {
     qWarning("~OPimAccessTemplate<T>");
     delete m_backEnd;
 }
 template <class T>
 bool OPimAccessTemplate<T>::load() {
+    invalidateCache();
     return m_backEnd->load();
 }
 template <class T>
 bool OPimAccessTemplate<T>::reload() {
     return m_backEnd->reload();
 }
 template <class T>
 bool OPimAccessTemplate<T>::save() {
     return m_backEnd->save();
 }
 template <class T>
 OPimAccessTemplate<T>::List OPimAccessTemplate<T>::allRecords()const {
     QArray<int> ints = m_backEnd->allRecords();
     List lis(ints, this );
     return lis;
 }
 template <class T>
 OPimAccessTemplate<T>::List
 OPimAccessTemplate<T>::queryByExample( const T& t, int sortOrder ) {
     QArray<int> ints = m_backEnd->queryByExample( t, sortOrder );
 
     List lis(ints, this );
     return lis;
 }
 template <class T>
 T OPimAccessTemplate<T>::find( int uid ) const{
     T t = m_backEnd->find( uid );
+    cache( t );
+    return t;
+}
+template <class T>
+T OPimAccessTemplate<T>::find( int uid, const QArray<int>& ar,
+                               uint current, CacheDirection dir )const {
+    /*
+     * better do T.isEmpty()
+     * after a find this way we would
+     * avoid two finds in QCache...
+     */
+    // qWarning("find it now %d", uid );
+    if (m_cache.contains( uid ) ) {
+        qWarning("m cache contains %d", uid);
+        return m_cache.find( uid );
+    }
+
+    T t = m_backEnd->find( uid, ar, current, dir );
+    qWarning("found it and cache it now %d", uid);
+    cache( t );
     return t;
 }
 template <class T>
 void OPimAccessTemplate<T>::clear() {
     invalidateCache();
     m_backEnd->clear();
 }
 template <class T>
 bool OPimAccessTemplate<T>::add( const T& t ) {
+    cache( t );
     return m_backEnd->add( t );
 }
 template <class T>
 bool OPimAccessTemplate<T>::remove( const T& t ) {
-    return m_backEnd->remove( t.uid() );
+    return remove( t.uid() );
 }
 template <class T>
 bool OPimAccessTemplate<T>::remove( int uid ) {
+    m_cache.remove( uid );
     return m_backEnd->remove( uid );
 }
 template <class T>
 bool OPimAccessTemplate<T>::replace( const T& t ) {
+    m_cache.replace( t );
     return m_backEnd->replace( t );
 }
 template <class T>
 void OPimAccessTemplate<T>::invalidateCache() {
-
+    m_cache.invalidate();
 }
 template <class T>
 OPimAccessTemplate<T>::BackEnd* OPimAccessTemplate<T>::backEnd() {
     return m_backEnd;
 }
 template <class T>
 bool OPimAccessTemplate<T>::wasChangedExternally()const {
     return false;
 }
 template <class T>
 void OPimAccessTemplate<T>::setBackEnd( BackEnd* end ) {
     m_backEnd = end;
+    if (m_backEnd )
+        m_backEnd->setFrontend( this );
+}
+template <class T>
+void OPimAccessTemplate<T>::cache( const T& t ) const{
+    /* hacky we need to work around the const*/
+    ((OPimAccessTemplate<T>*)this)->m_cache.add( t );
+}
+template <class T>
+void OPimAccessTemplate<T>::setSaneCacheSize( int size ) {
+    m_cache.setSize( size );
 }
 #endif