Added private get function to preserve constness of at()

KomplexHubPlugin/common/paginator.h

@@ -131,16 +131,9 @@ public:
      * @param index
      * @return
      */
-    auto at(qsizetype index) -> T
+    auto at(qsizetype index) const -> T
     {
-        QMutexLocker dataLocker(&m_dataMutex);
-
-        if(index < 0 || index >= m_data.count())
-        {
-            return {};
-        }
-
-        return m_data.at(index);
+        return get(index);
     }
 
     /**
@@ -264,6 +257,25 @@ protected:
     }
 
 private:
+    /**
+     * @brief get
+     * Private thread-safe get operation. This is needed to preserve the constness
+     * of the at function
+     * @param index
+     * @return
+     */
+    auto get(qsizetype index) -> T
+    {
+        QMutexLocker dataLocker(&m_dataMutex);
+
+        if(index < 0 || index >= m_data.count())
+        {
+            return {};
+        }
+
+        return m_data.at(index);
+    }
+
     /**
      * @brief m_offset
      * Current absolute offset. Used in fetch operations