class TFileSet: public TDataSet


TFileSet class is a class to convert the
"native file system structure"
into an instance of the TDataSet class

How to convert your home directory into the OO dataset

root [0] TString home = "$HOME";
root [1] TFileSet set(home);
root [2] TBrowser b("MyHome",&set);
root [3]"*");

Function Members (Methods)

voidTObject::AbstractMethod(const char* method) const
virtual voidTDataSet::Add(TDataSet* dataset)
virtual voidTDataSet::AddAt(TDataSet* dataset, Int_t idx = 0)
virtual voidTDataSet::AddAtAndExpand(TDataSet* dataset, Int_t idx = 0)
virtual voidTDataSet::AddFirst(TDataSet* dataset)
virtual voidTDataSet::AddLast(TDataSet* dataset)
virtual voidTObject::AppendPad(Option_t* option = "")
TDataSet*TDataSet::At(Int_t idx) const
virtual voidTDataSet::Browse(TBrowser* b)
static TClass*Class()
virtual const char*TObject::ClassName() const
virtual voidTNamed::Clear(Option_t* option = "")
virtual TObject*TDataSet::Clone(const char* newname = "") const
virtual Int_tTNamed::Compare(const TObject* obj) const
virtual voidTNamed::Copy(TObject& named) const
virtual voidTDataSet::Delete(Option_t* opt = "")
virtual Int_tTObject::DistancetoPrimitive(Int_t px, Int_t py)
virtual voidTObject::Draw(Option_t* option = "")
virtual voidTObject::DrawClass() constMENU
virtual TObject*TObject::DrawClone(Option_t* option = "") constMENU
virtual voidTObject::Dump() constMENU
virtual voidTObject::Error(const char* method, const char* msgfmt) const
virtual voidTObject::Execute(const char* method, const char* params, Int_t* error = 0)
virtual voidTObject::Execute(TMethod* method, TObjArray* params, Int_t* error = 0)
virtual voidTObject::ExecuteEvent(Int_t event, Int_t px, Int_t py)
virtual voidTObject::Fatal(const char* method, const char* msgfmt) const
virtual voidTNamed::FillBuffer(char*& buffer)
virtual TDataSet*TDataSet::Find(const char* path) const
virtual TDataSet*TDataSet::FindByName(const char* name, const char* path = "", Option_t* opt = "") const
virtual TDataSet*TDataSet::FindByPath(const char* path) const
virtual TDataSet*TDataSet::FindByTitle(const char* title, const char* path = "", Option_t* opt = "") const
virtual TObject*TDataSet::FindObject(const char* name) const
virtual TObject*TDataSet::FindObject(const TObject* o) const
virtual TDataSet*TDataSet::First() const
virtual TSeqCollection*TDataSet::GetCollection() const
virtual Option_t*TObject::GetDrawOption() const
static Long_tTObject::GetDtorOnly()
virtual const char*TObject::GetIconName() const
TList*TDataSet::GetList() const
virtual Int_tTDataSet::GetListSize() const
static TDataSet*TDataSet::GetMainSet()
TObject*TDataSet::GetMother() const
virtual const char*TNamed::GetName() const
TObjArray*TDataSet::GetObjArray() const
virtual TObject*TDataSet::GetObject() const
virtual char*TObject::GetObjectInfo(Int_t px, Int_t py) const
static Bool_tTObject::GetObjectStat()
virtual Option_t*TObject::GetOption() const
virtual TDataSet*TDataSet::GetParent() const
virtual const char*TNamed::GetTitle() const
virtual UInt_tTObject::GetUniqueID() const
virtual Bool_tTObject::HandleTimer(TTimer* timer)
virtual Long_tHasData() const
virtual ULong_tTNamed::Hash() const
virtual voidTObject::Info(const char* method, const char* msgfmt) const
virtual Bool_tTObject::InheritsFrom(const char* classname) const
virtual Bool_tTObject::InheritsFrom(const TClass* cl) const
virtual voidTObject::Inspect() constMENU
virtual TDataSet*TDataSet::Instance() const
static TDataSet*TDataSet::instance()
voidTObject::InvertBit(UInt_t f)
virtual TClass*IsA() const
virtual Bool_tIsEmpty() const
virtual Bool_tTObject::IsEqual(const TObject* obj) const
virtual Bool_tIsFolder() const
virtual Bool_tTDataSet::IsMarked() const
Bool_tTObject::IsOnHeap() const
virtual Bool_tTNamed::IsSortable() const
virtual Bool_tTDataSet::IsThisDir(const char* dirname, int len = -1, int ignorecase = 0) const
Bool_tTObject::IsZombie() const
virtual TDataSet*TDataSet::Last() const
virtual voidTDataSet::ls(Option_t* option = "") const
virtual voidTDataSet::ls(Int_t depth) const
voidTDataSet::Mark(UInt_t flag, TDataSet::EBitOpt reset = kSet)
voidTObject::MayNotUse(const char* method) const
virtual TDataSet*TDataSet::Next() const
virtual Bool_tTObject::Notify()
voidTObject::Obsolete(const char* method, const char* asOfVers, const char* removedFromVers) const
voidTObject::operator delete(void* ptr)
voidTObject::operator delete(void* ptr, void* vp)
voidTObject::operator delete[](void* ptr)
voidTObject::operator delete[](void* ptr, void* vp)
void*TObject::operator new(size_t sz)
void*TObject::operator new(size_t sz, void* vp)
void*TObject::operator new[](size_t sz)
void*TObject::operator new[](size_t sz, void* vp)
TFileSet&operator=(const TFileSet&)
virtual voidTObject::Paint(Option_t* option = "")
virtual TDataSet::EDataSetPassTDataSet::Pass(EDataSetPass(*)(TDataSet*) callback, Int_t depth = 0)
virtual TDataSet::EDataSetPassTDataSet::Pass(EDataSetPass(*)(TDataSet*,void*) callback, void* user, Int_t depth = 0)
virtual TStringTDataSet::Path() const
virtual voidTObject::Pop()
virtual TDataSet*TDataSet::Prev() const
virtual voidTNamed::Print(Option_t* option = "") const
virtual voidTDataSet::PrintContents(Option_t* opt = "") const
virtual Int_tTDataSet::Purge(Option_t* opt = "")
virtual Int_tTObject::Read(const char* name)
virtual voidTObject::RecursiveRemove(TObject* obj)
virtual voidTDataSet::Remove(TDataSet* set)
virtual TDataSet*TDataSet::RemoveAt(Int_t idx)
voidTObject::ResetBit(UInt_t f)
virtual voidTObject::SaveAs(const char* filename = "", Option_t* option = "") constMENU
virtual voidTObject::SavePrimitive(ostream& out, Option_t* option = "")
voidTObject::SetBit(UInt_t f)
voidTObject::SetBit(UInt_t f, Bool_t set)
virtual voidTObject::SetDrawOption(Option_t* option = "")MENU
static voidTObject::SetDtorOnly(void* obj)
virtual voidTDataSet::SetMother(TDataSet* parent = 0)
virtual voidTNamed::SetName(const char* name)MENU
virtual voidTNamed::SetNameTitle(const char* name, const char* title)
virtual voidTDataSet::SetObject(TObject* obj)
static voidTObject::SetObjectStat(Bool_t stat)
virtual voidTDataSet::SetParent(TDataSet* parent = 0)
virtual voidTNamed::SetTitle(const char* title = "")MENU
virtual voidTObject::SetUniqueID(UInt_t uid)
virtual voidTDataSet::SetWrite()
virtual voidShowMembers(TMemberInspector& insp) const
virtual voidTDataSet::Shunt(TDataSet* newParent = 0)
virtual Int_tTNamed::Sizeof() const
virtual voidTDataSet::Sort()
virtual voidStreamer(TBuffer&)
voidStreamerNVirtual(TBuffer& ClassDef_StreamerNVirtual_b)
virtual voidTObject::SysError(const char* method, const char* msgfmt) const
Bool_tTObject::TestBit(UInt_t f) const
Int_tTObject::TestBits(UInt_t f) const
TFileSet(const TFileSet&)
TFileSet(const TString& dirname, const Char_t* filename = 0, Bool_t expand = kTRUE, Int_t maxDepth = 10)
virtual voidTDataSet::Update()
virtual voidTDataSet::Update(TDataSet* set, UInt_t opt = 0)
virtual voidTObject::UseCurrentStyle()
virtual voidTObject::Warning(const char* method, const char* msgfmt) const
virtual Int_tTDataSet::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0)
virtual Int_tTDataSet::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0) const
voidTDataSet::AddMain(TDataSet* set)
virtual voidTObject::DoError(int level, const char* location, const char* fmt, va_list va) const
virtual voidTDataSet::SetMother(TObject* mother)
static TDataSet::EDataSetPassTDataSet::SortIt(TDataSet* ds)
static TDataSet::EDataSetPassTDataSet::SortIt(TDataSet* ds, void* user)

Data Members

TSeqCollection*TDataSet::fListList of the the the objects included into this dataset
TStringTNamed::fNameobject identifier
TDataSet*TDataSet::fParentpointer to mother of the directory
TStringTNamed::fTitleobject title
static TDataSet*TDataSet::fgMainSetpointer the main dataset;

Class Charts

Inheritance Inherited Members Includes Libraries
Class Charts

Function documentation

to be documented
TFileSet(const TString& dirname, const Char_t* filename = 0, Bool_t expand = kTRUE, Int_t maxDepth = 10)
 Creates TFileSet
 Convert the "opearting system" file system tree into the memory resided TFileSet


  dirname  - the name of the "native file system" directory
             to convert into TFileSet
  setname  - the name of this TFileSet (it is the "base name"
                                 of the "dirname" by default)
  expand   - flag whether the "dirname" must be "expanded
             (kTRUE by default)
  maxDeep  - the max number of the levels of the directory to read in
             (=10 by default)
  Note: If the "dirname" points to non-existent object, for examoe it is dead-link
  ----  the object is marked as "Zombie" and this flag is propagated upwards
to be documented
Bool_t IsEmpty() const
to be documented
Long_t HasData() const
 This implementation is done in the TDataSet::Purge() method in mind
 Since this method returns non-zero for files the last are NOT "purged"
 by TDataSet::Purge()

Bool_t IsFolder() const
 If the title of this TFileSet is "file" it is NOT folder
 see: TFileSet(TString &dirname,const Char_t *setname,Bool_t expand)