Go4EventServer
Class TGo4MainTree

class TGo4MainTree

derived from TObject

Singleton containing and managing the main tree
of the go4 analysis. All analysis steps may get and
save their events as branches of this tree. The treesource
and treestore instances are managing just one branch of
this tree for each of their subevents. Branches of this
tree might be saved into different root files.

Author:

J. Adamczewski

Since: 16-feb-2001

public const static const Text_t[] fgcFILENAME

Standard suffix for file name

public const static const Text_t[] fgcTREENAME

Standard go4 name of the main tree

public const static const Int_t fgiAUTOSAVESIZE

Default tree autosave size

public const static const Int_t fgiCOMPRESS

Default compression level

private Int_t fiCurrentIndex

Index number of the current event.

private Int_t fiMaxIndex

Number of events stored in the Tree. Used to check if
the complete tree is already read.

private TFile* fxFile

private static TGo4MainTree* fxInstance

private TTree* fxTree

protected TGo4MainTree()

public virtual synchronized ~TGo4MainTree()

public static Bool_t Exists()

True if instance of tree already exists. Used by framework to check if MainTree
was created by any treestore/source instance, before the instance is
requested. Otherwise framework would create maintree without need.

public const Int_t GetCurrentIndex()

public Int_t GetMaxIndex()

protected TTree* GetTree()

Access to the tree. For friends only, i.e
TreeSource and TreeStore.

public Int_t IncCurrentIndex()

Increments current index in the main tree by one.
Returns the value of the index after incrementation.
To be used by event loop controlling framework.

public static TGo4MainTree* Instance()

public void SetAutoSave(Int_t bytesinterval)

Set the tree autosave byte interval. May be changed on the fly.

public void SetCurrentIndex(Int_t number)

public void Update()

Update the tree entry information without processing any branch.
i.e. increment the entry counter with all branches disabled. To be called by
framework once within the event loop.

public virtual Int_t Write(const char * dummy, Int_t option, Int_t bufsize)

Write tree content to file.

Association Links

to Class TGo4MainTree