SimpleQuery: Provide a getter for the current iterator position

refs #8615

library/Icinga/Data/SimpleQuery.php

@@ -143,6 +143,16 @@ class SimpleQuery implements QueryInterface, Queryable, Iterator
         return $this->ds;
     }
 
+    /**
+     * Return the current position of this query's iterator
+     *
+     * @return  int
+     */
+    public function getIteratorPosition()
+    {
+        return $this->iteratorPosition;
+    }
+
     /**
      * Start or rewind the iteration
      */

library/Icinga/Repository/RepositoryQuery.php

@@ -605,6 +605,16 @@ class RepositoryQuery implements QueryInterface, SortRules, Iterator
         return $this->query->count();
     }
 
+    /**
+     * Return the current position of this query's iterator
+     *
+     * @return  int
+     */
+    public function getIteratorPosition()
+    {
+        return $this->query->getIteratorPosition();
+    }
+
     /**
      * Start or rewind the iteration
      */

modules/monitoring/library/Monitoring/DataView/DataView.php

@@ -69,6 +69,16 @@ abstract class DataView implements QueryInterface, SortRules, IteratorAggregate
         return $this->getQuery();
     }
 
+    /**
+     * Return the current position of the result set's iterator
+     *
+     * @return  int
+     */
+    public function getIteratorPosition()
+    {
+        return $this->query->getIteratorPosition();
+    }
+
     /**
      * Get the query name this data view relies on
      *