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--- gaudi:ntuple [2009/10/05 16:48] – decianm
+++ gaudi:ntuple [2009/11/30 10:01] (current) – decianm
@@ Line 1: / Line 1: @@
-====== How to make your GaudiAlgorithm ready for an nTuple ======
+====== How to make your GaudiAlgorithm / GaudiTool ready for an nTuple ======
 ===== Problem =====
-Unlike a DaVinci-Algorithm (DVAlgorithm), Gaudi classes (most of the time) inherit from GaudiAlgorithm, where the possiblity to create an nTuple (in an easy way) is not implemented.
+Unlike a DaVinci-Algorithm (DVAlgorithm), Gaudi algorithms (most of the time) inherit from GaudiAlgorithm and tools from GaudiTools where the possiblity to create an nTuple (in an easy way) is not implemented.
-===== Solution =====
+===== Solution for GaudiAlgorithm =====
 Let your GaudiAlgorithm inherit from 'GaudiTupleAlg' instead of 'GaudiAlgorithm'. Most of the time, you have to replace the following instances:
 In the .h-File:
@@ Line 20: / Line 20: @@
 You should then be able to declare your tuple in the 'execute()'-Method with
+<code>
+Tuple tuple = nTuple("myTuple");
+</code>
+===== Solution for GaudiTool =====
+Let your GaudiTool inherit from 'GaudiTupleTool' instead of 'GaudiTool'. Most of the time, you have to replace the following instances:
+In the .h-File:
+<code>
+#include "GaudiAlg/TupleObj.h"
+#include "GaudiAlg/Tuples.h"
+#include "GaudiAlg/Tuple.h"
+#include "GaudiAlg/GaudiTupleTool.h"
+class myClass : public GaudiTupleTool
+</code>
+In the .cpp-File:
+<code>
+myClass::myClass( const std::string& type, const std::string& name, const IInterface* parent):GaudiTupleTool(type, name, parent)
+</code>
+You should then be able to declare your tuple in a method with
 <code>
 Tuple tuple = nTuple("myTuple");
 </code>

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