From 1dcc1b1fc9fd35d959255452c8b5be1269ca4f44 Mon Sep 17 00:00:00 2001
From: zecke <zecke>
Date: Thu, 10 Oct 2002 17:08:58 +0000
Subject: The Cache is finally in place

I tested it with my todolist and it 'works' for 10.000 todos the hits are awesome ;)
The read ahead functionality does not make sense for XMLs backends because most of the stuff is already in memory. While using readahead on SQL makes things a lot faster....
I still have to fully implement read ahead
This change is bic but sc
---
(limited to 'libopie2/opiepim/backend')

diff --git a/libopie2/opiepim/backend/obackendfactory.h b/libopie2/opiepim/backend/obackendfactory.h
index f11f029..89b8c58 100644
--- a/libopie2/opiepim/backend/obackendfactory.h
+++ b/libopie2/opiepim/backend/obackendfactory.h
@@ -16,6 +16,13 @@
  * =====================================================================
  * History:
  * $Log$
+ * Revision 1.3  2002/10/10 17:08:58  zecke
+ * The Cache is finally in place
+ * I tested it with my todolist and it 'works' for 10.000 todos the hits are awesome ;)
+ * The read ahead functionality does not make sense for XMLs backends because most of the stuff is already in memory. While using readahead on SQL makes things a lot faster....
+ * I still have to fully implement read ahead
+ * This change is bic but sc
+ *
  * Revision 1.2  2002/10/08 09:27:36  eilers
  * Fixed libopie.pro to include the new pim-API.
  * The SQL-Stuff is currently deactivated. Otherwise everyone who wants to
@@ -28,8 +35,8 @@
  *
  * =====================================================================
  */
-#ifndef __OPIE_BACKENDFACTORY_H_
-#define __OPIE_BACKENDFACTORY_H_
+#ifndef OPIE_BACKENDFACTORY_H_
+#define OPIE_BACKENDFACTORY_H_
 
 #include <qstring.h>
 #include <qasciidict.h>
@@ -38,9 +45,10 @@
 #include "otodoaccessxml.h"
 #include "ocontactaccessbackend_xml.h"
 
-#ifdef __USE_SQL
+/*#ifdef __USE_SQL
 #include "otodoaccesssql.h"
 #endif
+*/
 
 template<class T>
 class OBackendFactory
@@ -72,13 +80,13 @@ class OBackendFactory
 	
 		switch ( *dict.take( backendName ) ){
 		case TODO:
-#ifdef __USE_SQL
+/*#ifdef __USE_SQL
 			if ( backend == "sql" ) 
 				return (T*) new OTodoAccessBackendSQL("");
-#else
+#else*/
 			if ( backend == "sql" ) 
 				qWarning ("OBackendFactory:: sql Backend not implemented! Using XML instead!");
-#endif
+//#endif
 
 			return (T*) new OTodoAccessXML( appName );
 		case CONTACT:
diff --git a/libopie2/opiepim/backend/opimaccessbackend.h b/libopie2/opiepim/backend/opimaccessbackend.h
index c27acbb..27d3cb8 100644
--- a/libopie2/opiepim/backend/opimaccessbackend.h
+++ b/libopie2/opiepim/backend/opimaccessbackend.h
@@ -3,6 +3,7 @@
 
 #include <qarray.h>
 
+#include <opie/otemplatebase.h>
 #include <opie/opimrecord.h>
 
 
@@ -17,6 +18,7 @@
 template <class T = OPimRecord>
 class OPimAccessBackend {
 public:
+    typedef OTemplateBase<T> Frontend;
     OPimAccessBackend();
     virtual ~OPimAccessBackend();
 
@@ -54,6 +56,8 @@ public:
      */
     virtual T find(int uid )const  = 0;
 
+    virtual T find(int uid, const QArray<int>& items,
+                   uint current, Frontend::CacheDirection )const ;
     /**
      * clear the back end
      */
@@ -74,16 +78,50 @@ public:
      */
     virtual bool replace( const T& t ) = 0;
 
+    /*
+     * setTheFrontEnd!!!
+     */
+    void setFrontend( Frontend* front );
+
+protected:
+    void cache( const T& t )const;
+
+    /**
+     * use a prime number here!
+     */
+    void setSaneCacheSize( int );
+
+private:
+    Frontend* m_front;
 
 };
 
 template <class T>
 OPimAccessBackend<T>::OPimAccessBackend() {
-
+    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>
+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, Frontend::CacheDirection )const {
+    return find( uid );
+}
 
 #endif
--
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