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Reference Guide
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TFileMerger Class Reference

This class provides file copy and merging services.

It can be used to copy files (not only ROOT files), using TFile or any of its remote file access plugins. It is therefore useful in a Grid environment where the files might be accessible via Castor, rfio, dcap, etc. The merging interface allows files containing histograms and trees to be merged, like the standalone hadd program.

Definition at line 24 of file TFileMerger.h.

Public Types

enum  EPartialMergeType {
  kRegular = 0, kIncremental = BIT(1), kResetable = BIT(2), kNonResetable = BIT(3),
  kAll = BIT(2)|BIT(3), kAllIncremental = kIncremental | kAll, kOnlyListed = BIT(4), kSkipListed = BIT(5),
  kKeepCompression = BIT(6)
}
 Type of the partial merge. More...
 
- Public Types inherited from TObject
enum  { kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kBitMask = 0x00ffffff }
 
enum  { kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }
 
enum  EStatusBits {
  kCanDelete = BIT(0), kMustCleanup = BIT(3), kObjInCanvas = BIT(3), kIsReferenced = BIT(4),
  kHasUUID = BIT(5), kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13)
}
 

Public Member Functions

 TFileMerger (Bool_t isLocal=kTRUE, Bool_t histoOneGo=kTRUE)
 Create file merger object. More...
 
virtual ~TFileMerger ()
 Cleanup. More...
 
virtual Bool_t AddAdoptFile (TFile *source, Bool_t cpProgress=kTRUE)
 Add the TFile to this file merger and give ownership of the TFile to this object (unless kFALSE is returned). More...
 
virtual Bool_t AddFile (const char *url, Bool_t cpProgress=kTRUE)
 Add file to file merger. More...
 
virtual Bool_t AddFile (TFile *source, Bool_t cpProgress=kTRUE)
 Add the TFile to this file merger and do not give ownership of the TFile to this object. More...
 
void AddObjectNames (const char *name)
 
void ClearObjectNames ()
 
virtual const char * GetCWD ()
 
Int_t GetMaxOpenedFiles () const
 
TListGetMergeList () const
 
const char * GetMergeOptions ()
 
const char * GetMsgPrefix () const
 
const char * GetObjectNames () const
 
TFileGetOutputFile () const
 
const char * GetOutputFileName () const
 
Int_t GetPrintLevel () const
 
Bool_t HasCompressionChange () const
 
virtual Bool_t Merge (Bool_t=kTRUE)
 Merge the files. More...
 
virtual Bool_t OutputFile (const char *url, Bool_t force)
 Open merger output file. More...
 
virtual Bool_t OutputFile (const char *url, Bool_t force, Int_t compressionLevel)
 Open merger output file. More...
 
virtual Bool_t OutputFile (const char *url, const char *mode="RECREATE")
 Open merger output file. More...
 
virtual Bool_t OutputFile (const char *url, const char *mode, Int_t compressionLevel)
 Open merger output file. More...
 
virtual Bool_t PartialMerge (Int_t type=kAll|kIncremental)
 Merge the files. More...
 
virtual void PrintFiles (Option_t *options)
 Print list of files being merged. More...
 
virtual void RecursiveRemove (TObject *obj)
 Intercept the case where the output TFile is deleted! More...
 
virtual void Reset ()
 Reset merger file list. More...
 
virtual Bool_t SetCWD (const char *)
 
virtual void SetFastMethod (Bool_t fast=kTRUE)
 
void SetMaxOpenedFiles (Int_t newmax)
 Set a limit to the number of files that TFileMerger will open simultaneously. More...
 
void SetMergeOptions (const TString &options)
 
void SetMergeOptions (const std::string_view &options)
 
void SetMsgPrefix (const char *prefix)
 Set the prefix to be used when printing informational message. More...
 
virtual void SetNotrees (Bool_t notrees=kFALSE)
 
void SetPrintLevel (Int_t level)
 
- Public Member Functions inherited from TObject
 TObject ()
 TObject constructor. More...
 
 TObject (const TObject &object)
 TObject copy ctor. More...
 
virtual ~TObject ()
 TObject destructor. More...
 
void AbstractMethod (const char *method) const
 Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...
 
virtual void AppendPad (Option_t *option="")
 Append graphics object to current pad. More...
 
virtual void Browse (TBrowser *b)
 Browse object. May be overridden for another default action. More...
 
virtual const char * ClassName () const
 Returns name of class to which the object belongs. More...
 
virtual void Clear (Option_t *="")
 
virtual TObjectClone (const char *newname="") const
 Make a clone of an object using the Streamer facility. More...
 
virtual Int_t Compare (const TObject *obj) const
 Compare abstract method. More...
 
virtual void Copy (TObject &object) const
 Copy this to obj. More...
 
virtual void Delete (Option_t *option="")
 Delete this object. More...
 
virtual Int_t DistancetoPrimitive (Int_t px, Int_t py)
 Computes distance from point (px,py) to the object. More...
 
virtual void Draw (Option_t *option="")
 Default Draw method for all objects. More...
 
virtual void DrawClass () const
 Draw class inheritance tree of the class to which this object belongs. More...
 
virtual TObjectDrawClone (Option_t *option="") const
 Draw a clone of this object in the current selected pad for instance with: gROOT->SetSelectedPad(gPad). More...
 
virtual void Dump () const
 Dump contents of object on stdout. More...
 
virtual void Error (const char *method, const char *msgfmt,...) const
 Issue error message. More...
 
virtual void Execute (const char *method, const char *params, Int_t *error=0)
 Execute method on this object with the given parameter string, e.g. More...
 
virtual void Execute (TMethod *method, TObjArray *params, Int_t *error=0)
 Execute method on this object with parameters stored in the TObjArray. More...
 
virtual void ExecuteEvent (Int_t event, Int_t px, Int_t py)
 Execute action corresponding to an event at (px,py). More...
 
virtual void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message. More...
 
virtual TObjectFindObject (const char *name) const
 Must be redefined in derived classes. More...
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes. More...
 
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object. More...
 
virtual const char * GetIconName () const
 Returns mime type name of object. More...
 
virtual const char * GetName () const
 Returns name of object. More...
 
virtual char * GetObjectInfo (Int_t px, Int_t py) const
 Returns string containing info about the object at position (px,py). More...
 
virtual Option_tGetOption () const
 
virtual const char * GetTitle () const
 Returns title of object. More...
 
virtual UInt_t GetUniqueID () const
 Return the unique object id. More...
 
virtual Bool_t HandleTimer (TTimer *timer)
 Execute action in response of a timer timing out. More...
 
virtual ULong_t Hash () const
 Return hash value for this object. More...
 
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message. More...
 
virtual Bool_t InheritsFrom (const char *classname) const
 Returns kTRUE if object inherits from class "classname". More...
 
virtual Bool_t InheritsFrom (const TClass *cl) const
 Returns kTRUE if object inherits from TClass cl. More...
 
virtual void Inspect () const
 Dump contents of this object in a graphics canvas. More...
 
void InvertBit (UInt_t f)
 
virtual Bool_t IsEqual (const TObject *obj) const
 Default equal comparison (objects are equal if they have the same address in memory). More...
 
virtual Bool_t IsFolder () const
 Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...
 
Bool_t IsOnHeap () const
 
virtual Bool_t IsSortable () const
 
Bool_t IsZombie () const
 
virtual void ls (Option_t *option="") const
 The ls function lists the contents of a class on stdout. More...
 
void MayNotUse (const char *method) const
 Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). More...
 
virtual Bool_t Notify ()
 This method must be overridden to handle object notification. More...
 
void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
 Use this method to declare a method obsolete. More...
 
void operator delete (void *ptr)
 Operator delete. More...
 
void operator delete[] (void *ptr)
 Operator delete []. More...
 
voidoperator new (size_t sz)
 
voidoperator new (size_t sz, void *vp)
 
voidoperator new[] (size_t sz)
 
voidoperator new[] (size_t sz, void *vp)
 
TObjectoperator= (const TObject &rhs)
 TObject assignment operator. More...
 
virtual void Paint (Option_t *option="")
 This method must be overridden if a class wants to paint itself. More...
 
virtual void Pop ()
 Pop on object drawn in a pad to the top of the display list. More...
 
virtual void Print (Option_t *option="") const
 This method must be overridden when a class wants to print itself. More...
 
virtual Int_t Read (const char *name)
 Read contents of object with specified name from the current directory. More...
 
void ResetBit (UInt_t f)
 
virtual void SaveAs (const char *filename="", Option_t *option="") const
 Save this object in the file specified by filename. More...
 
virtual void SavePrimitive (std::ostream &out, Option_t *option="")
 Save a primitive as a C++ statement(s) on output stream "out". More...
 
void SetBit (UInt_t f, Bool_t set)
 Set or unset the user status bits as specified in f. More...
 
void SetBit (UInt_t f)
 
virtual void SetDrawOption (Option_t *option="")
 Set drawing option for object. More...
 
virtual void SetUniqueID (UInt_t uid)
 Set the unique object id. More...
 
virtual void SysError (const char *method, const char *msgfmt,...) const
 Issue system error message. More...
 
Bool_t TestBit (UInt_t f) const
 
Int_t TestBits (UInt_t f) const
 
virtual void UseCurrentStyle ()
 Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More...
 
virtual void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
 Write this object to the current directory. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
 Write this object to the current directory. More...
 

Protected Member Functions

virtual Bool_t AddFile (TFile *source, Bool_t own, Bool_t cpProgress)
 Add the TFile to this file merger and give ownership of the TFile to this object (unless kFALSE is returned). More...
 
virtual Bool_t MergeRecursive (TDirectory *target, TList *sourcelist, Int_t type=kRegular|kAll)
 Merge all objects in a directory. More...
 
Bool_t OpenExcessFiles ()
 Open up to fMaxOpenedFiles of the excess files. More...
 
- Protected Member Functions inherited from TObject
virtual void DoError (int level, const char *location, const char *fmt, va_list va) const
 Interface to ErrorHandler (protected). More...
 
void MakeZombie ()
 

Protected Attributes

Bool_t fCompressionChange
 True if the output and input have different compression level (default kFALSE) More...
 
TListfExcessFiles
 ! List of TObjString containing the name of the files not yet added to fFileList due to user or system limitiation on the max number of files opened. More...
 
Bool_t fExplicitCompLevel
 True if the user explicitly requested a compressio level change (default kFALSE) More...
 
Bool_t fFastMethod
 True if using Fast merging algorithm (default) More...
 
TListfFileList
 A list the file (TFile*) which shall be merged. More...
 
Bool_t fHistoOneGo
 Merger histos in one go (default is kTRUE) More...
 
Bool_t fLocal
 Makes local copies of merging files if True (default is kTRUE) More...
 
Int_t fMaxOpenedFiles
 Maximum number of files opened at the same time by the TFileMerger. More...
 
TListfMergeList
 list of TObjString containing the name of the files need to be merged More...
 
TString fMergeOptions
 Options (in string format) to be passed down to the Merge functions. More...
 
TString fMsgPrefix
 Prefix to be used when printing informational message (default TFileMerger) More...
 
Bool_t fNoTrees
 True if Trees should not be merged (default is kFALSE) More...
 
TString fObjectNames
 List of object names to be either merged exclusively or skipped. More...
 
TFilefOutputFile
 The outputfile for merging. More...
 
TString fOutputFilename
 The name of the outputfile for merging. More...
 
Int_t fPrintLevel
 How much information to print out at run time. More...
 
TStopwatch fWatch
 Stop watch to measure file copy speed. More...
 

Private Member Functions

 TFileMerger (const TFileMerger &)
 
TFileMergeroperator= (const TFileMerger &)
 

Additional Inherited Members

- Static Public Member Functions inherited from TObject
static Long_t GetDtorOnly ()
 Return destructor only flag. More...
 
static Bool_t GetObjectStat ()
 Get status of object stat flag. More...
 
static void SetDtorOnly (void *obj)
 Set destructor only flag. More...
 
static void SetObjectStat (Bool_t stat)
 Turn on/off tracking of objects in the TObjectTable. More...
 

#include <TFileMerger.h>

Inheritance diagram for TFileMerger:
[legend]

Member Enumeration Documentation

◆ EPartialMergeType

Type of the partial merge.

Enumerator
kRegular 

Normal merge, overwritting the output file.

kIncremental 

Merge the input file with the content of the output file (if already exising).

kResetable 

Only the objects with a MergeAfterReset member function.

kNonResetable 

Only the objects without a MergeAfterReset member function.

kAll 

Merge all type of objects (default)

kAllIncremental 

Merge incrementally all type of objects.

kOnlyListed 

Only the objects specified in fObjectNames list.

kSkipListed 

Skip objects specified in fObjectNames list.

kKeepCompression 

Keep compression level unchanged for each input files.

Definition at line 55 of file TFileMerger.h.

Constructor & Destructor Documentation

◆ TFileMerger() [1/2]

TFileMerger::TFileMerger ( const TFileMerger )
private

◆ TFileMerger() [2/2]

TFileMerger::TFileMerger ( Bool_t  isLocal = kTRUE,
Bool_t  histoOneGo = kTRUE 
)

Create file merger object.

Definition at line 90 of file TFileMerger.cxx.

◆ ~TFileMerger()

TFileMerger::~TFileMerger ( )
virtual

Cleanup.

Definition at line 110 of file TFileMerger.cxx.

Member Function Documentation

◆ AddAdoptFile()

Bool_t TFileMerger::AddAdoptFile ( TFile source,
Bool_t  cpProgress = kTRUE 
)
virtual

Add the TFile to this file merger and give ownership of the TFile to this object (unless kFALSE is returned).

Return kTRUE if the addition was successful.

Definition at line 214 of file TFileMerger.cxx.

◆ AddFile() [1/3]

Bool_t TFileMerger::AddFile ( TFile source,
Bool_t  own,
Bool_t  cpProgress 
)
protectedvirtual

Add the TFile to this file merger and give ownership of the TFile to this object (unless kFALSE is returned).

Return kTRUE if the addition was successful.

Definition at line 225 of file TFileMerger.cxx.

◆ AddFile() [2/3]

Bool_t TFileMerger::AddFile ( const char *  url,
Bool_t  cpProgress = kTRUE 
)
virtual

Add file to file merger.

Definition at line 136 of file TFileMerger.cxx.

◆ AddFile() [3/3]

Bool_t TFileMerger::AddFile ( TFile source,
Bool_t  cpProgress = kTRUE 
)
virtual

Add the TFile to this file merger and do not give ownership of the TFile to this object.

Return kTRUE if the addition was successful.

Definition at line 203 of file TFileMerger.cxx.

◆ AddObjectNames()

void TFileMerger::AddObjectNames ( const char *  name)
inline

Definition at line 84 of file TFileMerger.h.

◆ ClearObjectNames()

void TFileMerger::ClearObjectNames ( )
inline

Definition at line 86 of file TFileMerger.h.

◆ GetCWD()

virtual const char* TFileMerger::GetCWD ( )
inlinevirtual

Definition at line 90 of file TFileMerger.h.

◆ GetMaxOpenedFiles()

Int_t TFileMerger::GetMaxOpenedFiles ( ) const
inline

Definition at line 77 of file TFileMerger.h.

◆ GetMergeList()

TList* TFileMerger::GetMergeList ( ) const
inline

Definition at line 75 of file TFileMerger.h.

◆ GetMergeOptions()

const char* TFileMerger::GetMergeOptions ( )
inline

Definition at line 81 of file TFileMerger.h.

◆ GetMsgPrefix()

const char* TFileMerger::GetMsgPrefix ( ) const
inline

Definition at line 79 of file TFileMerger.h.

◆ GetObjectNames()

const char* TFileMerger::GetObjectNames ( ) const
inline

Definition at line 85 of file TFileMerger.h.

◆ GetOutputFile()

TFile* TFileMerger::GetOutputFile ( ) const
inline

Definition at line 76 of file TFileMerger.h.

◆ GetOutputFileName()

const char* TFileMerger::GetOutputFileName ( ) const
inline

Definition at line 74 of file TFileMerger.h.

◆ GetPrintLevel()

Int_t TFileMerger::GetPrintLevel ( ) const
inline

Definition at line 71 of file TFileMerger.h.

◆ HasCompressionChange()

Bool_t TFileMerger::HasCompressionChange ( ) const
inline

Definition at line 73 of file TFileMerger.h.

◆ Merge()

Bool_t TFileMerger::Merge ( Bool_t  = kTRUE)
virtual

Merge the files.

If no output file was specified it will write into the file "FileMerger.root" in the working directory. Returns true on success, false in case of error.

Definition at line 359 of file TFileMerger.cxx.

◆ MergeRecursive()

Bool_t TFileMerger::MergeRecursive ( TDirectory target,
TList sourcelist,
Int_t  type = kRegular | kAll 
)
protectedvirtual

Merge all objects in a directory.

The type is defined by the bit values in TFileMerger::EPartialMergeType.

Definition at line 369 of file TFileMerger.cxx.

◆ OpenExcessFiles()

Bool_t TFileMerger::OpenExcessFiles ( )
protected

Open up to fMaxOpenedFiles of the excess files.

Definition at line 892 of file TFileMerger.cxx.

◆ operator=()

TFileMerger& TFileMerger::operator= ( const TFileMerger )
private

◆ OutputFile() [1/4]

Bool_t TFileMerger::OutputFile ( const char *  url,
Bool_t  force 
)
virtual

Open merger output file.

Definition at line 298 of file TFileMerger.cxx.

◆ OutputFile() [2/4]

Bool_t TFileMerger::OutputFile ( const char *  url,
Bool_t  force,
Int_t  compressionLevel 
)
virtual

Open merger output file.

Definition at line 290 of file TFileMerger.cxx.

◆ OutputFile() [3/4]

Bool_t TFileMerger::OutputFile ( const char *  outputfile,
const char *  mode = "RECREATE" 
)
virtual

Open merger output file.

'mode' is passed to the TFile constructor as the option, it should be one of 'NEW','CREATE','RECREATE','UPDATE' 'UPDATE' is usually used in conjunction with IncrementalMerge.

Definition at line 336 of file TFileMerger.cxx.

◆ OutputFile() [4/4]

Bool_t TFileMerger::OutputFile ( const char *  outputfile,
const char *  mode,
Int_t  compressionLevel 
)
virtual

Open merger output file.

The 'mode' parameter is passed to the TFile constructor as the option, it should be one of 'NEW','CREATE','RECREATE','UPDATE' 'UPDATE' is usually used in conjunction with IncrementalMerge.

Definition at line 312 of file TFileMerger.cxx.

◆ PartialMerge()

Bool_t TFileMerger::PartialMerge ( Int_t  in_type = kAll | kIncremental)
virtual

Merge the files.

If no output file was specified it will write into the file "FileMerger.root" in the working directory. Returns true on success, false in case of error. The type is defined by the bit values in EPartialMergeType: kRegular : normal merge, overwritting the output file kIncremental : merge the input file with the content of the output file (if already exising) (default) kAll : merge all type of objects (default) kResetable : merge only the objects with a MergeAfterReset member function. kNonResetable : merge only the objects without a MergeAfterReset member function.

If the type is set to kIncremental the output file is done deleted at the end of this operation. If the type is not set to kIncremental, the output file is closed.

Definition at line 791 of file TFileMerger.cxx.

◆ PrintFiles()

void TFileMerger::PrintFiles ( Option_t options)
virtual

Print list of files being merged.

Definition at line 346 of file TFileMerger.cxx.

◆ RecursiveRemove()

void TFileMerger::RecursiveRemove ( TObject obj)
virtual

Intercept the case where the output TFile is deleted!

Reimplemented from TObject.

Definition at line 939 of file TFileMerger.cxx.

◆ Reset()

void TFileMerger::Reset ( void  )
virtual

Reset merger file list.

Definition at line 125 of file TFileMerger.cxx.

◆ SetCWD()

virtual Bool_t TFileMerger::SetCWD ( const char *  )
inlinevirtual

Definition at line 89 of file TFileMerger.h.

◆ SetFastMethod()

virtual void TFileMerger::SetFastMethod ( Bool_t  fast = kTRUE)
inlinevirtual

Definition at line 104 of file TFileMerger.h.

◆ SetMaxOpenedFiles()

void TFileMerger::SetMaxOpenedFiles ( Int_t  newmax)

Set a limit to the number of files that TFileMerger will open simultaneously.

If the request is higher than the system limit, we reset it to the system limit. If the request is less than two, we reset it to 2 (one for the output file and one for the input file).

Definition at line 953 of file TFileMerger.cxx.

◆ SetMergeOptions() [1/2]

void TFileMerger::SetMergeOptions ( const TString options)
inline

Definition at line 82 of file TFileMerger.h.

◆ SetMergeOptions() [2/2]

void TFileMerger::SetMergeOptions ( const std::string_view &  options)
inline

Definition at line 83 of file TFileMerger.h.

◆ SetMsgPrefix()

void TFileMerger::SetMsgPrefix ( const char *  prefix)

Set the prefix to be used when printing informational message.

Definition at line 969 of file TFileMerger.cxx.

◆ SetNotrees()

virtual void TFileMerger::SetNotrees ( Bool_t  notrees = kFALSE)
inlinevirtual

Definition at line 105 of file TFileMerger.h.

◆ SetPrintLevel()

void TFileMerger::SetPrintLevel ( Int_t  level)
inline

Definition at line 72 of file TFileMerger.h.

Member Data Documentation

◆ fCompressionChange

Bool_t TFileMerger::fCompressionChange
protected

True if the output and input have different compression level (default kFALSE)

Definition at line 37 of file TFileMerger.h.

◆ fExcessFiles

TList* TFileMerger::fExcessFiles
protected

! List of TObjString containing the name of the files not yet added to fFileList due to user or system limitiation on the max number of files opened.

Definition at line 47 of file TFileMerger.h.

◆ fExplicitCompLevel

Bool_t TFileMerger::fExplicitCompLevel
protected

True if the user explicitly requested a compressio level change (default kFALSE)

Definition at line 36 of file TFileMerger.h.

◆ fFastMethod

Bool_t TFileMerger::fFastMethod
protected

True if using Fast merging algorithm (default)

Definition at line 34 of file TFileMerger.h.

◆ fFileList

TList* TFileMerger::fFileList
protected

A list the file (TFile*) which shall be merged.

Definition at line 31 of file TFileMerger.h.

◆ fHistoOneGo

Bool_t TFileMerger::fHistoOneGo
protected

Merger histos in one go (default is kTRUE)

Definition at line 44 of file TFileMerger.h.

◆ fLocal

Bool_t TFileMerger::fLocal
protected

Makes local copies of merging files if True (default is kTRUE)

Definition at line 43 of file TFileMerger.h.

◆ fMaxOpenedFiles

Int_t TFileMerger::fMaxOpenedFiles
protected

Maximum number of files opened at the same time by the TFileMerger.

Definition at line 42 of file TFileMerger.h.

◆ fMergeList

TList* TFileMerger::fMergeList
protected

list of TObjString containing the name of the files need to be merged

Definition at line 46 of file TFileMerger.h.

◆ fMergeOptions

TString TFileMerger::fMergeOptions
protected

Options (in string format) to be passed down to the Merge functions.

Definition at line 39 of file TFileMerger.h.

◆ fMsgPrefix

TString TFileMerger::fMsgPrefix
protected

Prefix to be used when printing informational message (default TFileMerger)

Definition at line 40 of file TFileMerger.h.

◆ fNoTrees

Bool_t TFileMerger::fNoTrees
protected

True if Trees should not be merged (default is kFALSE)

Definition at line 35 of file TFileMerger.h.

◆ fObjectNames

TString TFileMerger::fObjectNames
protected

List of object names to be either merged exclusively or skipped.

Definition at line 45 of file TFileMerger.h.

◆ fOutputFile

TFile* TFileMerger::fOutputFile
protected

The outputfile for merging.

Definition at line 32 of file TFileMerger.h.

◆ fOutputFilename

TString TFileMerger::fOutputFilename
protected

The name of the outputfile for merging.

Definition at line 33 of file TFileMerger.h.

◆ fPrintLevel

Int_t TFileMerger::fPrintLevel
protected

How much information to print out at run time.

Definition at line 38 of file TFileMerger.h.

◆ fWatch

TStopwatch TFileMerger::fWatch
protected

Stop watch to measure file copy speed.

Definition at line 30 of file TFileMerger.h.


The documentation for this class was generated from the following files: