A special getter of AliVertexer class needed for accessing all the primary vertices...

diff --git a/STEER/AliReconstruction.cxx b/STEER/AliReconstruction.cxx
index ff6e2b5f3f8133e186cb64c4ec10d2a7b7fe5b76..1285ae2fd90f8cedd2c316ee2924f9b1e366d8f1 100644 (file)
--- a/STEER/AliReconstruction.cxx
+++ b/STEER/AliReconstruction.cxx
@@ -2125,6 +2125,12 @@ Bool_t AliReconstruction::RunVertexFinder(AliESDEvent*& esd)
   vertex->GetSigmaXYZ(vtxErr);
 
   esd->SetPrimaryVertexSPD(vertex);
+  AliESDVertex *vpileup = NULL;
+  Int_t novertices = 0;
+  vpileup = vertexer->GetAllVertices(novertices);
+  if(novertices>1){
+    for (Int_t kk=1; kk<novertices; kk++)esd->AddPileupVertexSPD(&vpileup[kk]);
+  }
   // if SPD multiplicity has been determined, it is stored in the ESD
   AliMultiplicity *mult = vertexer->GetMultiplicity();
   if(mult)esd->SetMultiplicity(mult);

diff --git a/STEER/AliVertexer.h b/STEER/AliVertexer.h
index adc2ddd651858654bd50c23493741f7d9792e900..4883c307c06426c6d4f99327100644f4fedd0315 100644 (file)
--- a/STEER/AliVertexer.h
+++ b/STEER/AliVertexer.h
@@ -33,7 +33,12 @@ class AliVertexer : public TObject {
       { fNominalCov[0]=sx*sx; fNominalCov[2]=sy*sy; fNominalCov[5]=sz*sz;
       fNominalCov[1]=0.; fNominalCov[3]=0.; fNominalCov[4]=0.; }
     void SetVtxStart(AliESDVertex *vtx);
-
+    // the following method can be implemented in daughter classes 
+    // (e.g. in AliITSVertexer3D). It is intended to tag pile-up events
+    // novertices is the total number of vertices (1 means no pileup)
+    // The returned pointer points to an array of AliESDVertx opbjects
+    // with size=novertices
+    virtual  AliESDVertex* GetAllVertices(Int_t &novertices) const {novertices = 0; return NULL;}
     const Double_t* GetNominalPos() const {return fNominalPos;}
 
  protected: