Logo ROOT   6.21/01
Reference Guide
TTreeRow Class Reference

Class defining interface to a row of a TTree query result.

Objects of this class are created by TTreeResult methods.

Related classes are TTreeResult.

Definition at line 29 of file TTreeRow.h.

Public Member Functions

 TTreeRow ()
 Single row of a query result. More...
 
 TTreeRow (Int_t nfields)
 Single row of a query result. More...
 
 TTreeRow (Int_t nfields, const Int_t *fields, const char *row)
 Single row of a query result. More...
 
virtual ~TTreeRow ()
 Destroy row object. More...
 
void Close (Option_t *option="")
 Close row. More...
 
const char * GetField (Int_t field)
 Get specified field from row (0 <= field < GetFieldCount()). More...
 
ULong_t GetFieldLength (Int_t field)
 Get length in bytes of specified field. More...
 
void SetRow (const Int_t *fields, const char *row)
 The field and row information. More...
 
- Public Member Functions inherited from TSQLRow
virtual ~TSQLRow ()
 
const char * operator[] (Int_t field)
 
- 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...
 
ULong_t CheckedHash ()
 Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object. 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...
 
Bool_t HasInconsistentHash () const
 Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e. 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...
 
R__ALWAYS_INLINE Bool_t IsOnHeap () const
 
virtual Bool_t IsSortable () const
 
R__ALWAYS_INLINE 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...
 
virtual void RecursiveRemove (TObject *obj)
 Recursively remove this object from a list. 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...
 
R__ALWAYS_INLINE 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...
 

Private Member Functions

 TTreeRow (TSQLRow *original)
 This is a shallow copy of a real row, i.e. More...
 
 TTreeRow (const TTreeRow &)
 
Bool_t IsValid (Int_t field)
 Check if row is open and field index within range. More...
 
TTreeRowoperator= (const TTreeRow &)
 

Private Attributes

Int_t fColumnCount
 number of columns in row More...
 
Int_tfFields
 [fColumnCount] index in fRow of the end of each field More...
 
TTreeRowfOriginal
 ! pointer to original row More...
 
char * fRow
 string with all the fColumnCount fields More...
 

Friends

class TTreePlayer
 
class TTreeResult
 

Additional Inherited Members

- Public Types inherited from TObject
enum  {
  kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kInconsistent = 0x08000000,
  kBitMask = 0x00ffffff
}
 
enum  { kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }
 
enum  EDeprecatedStatusBits { kObjInCanvas = BIT(3) }
 
enum  EStatusBits {
  kCanDelete = BIT(0), kMustCleanup = BIT(3), kIsReferenced = BIT(4), kHasUUID = BIT(5),
  kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13)
}
 
- 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...
 
- Protected Member Functions inherited from TSQLRow
 TSQLRow ()
 
- 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 ()
 

#include <TTreeRow.h>

Inheritance diagram for TTreeRow:
[legend]

Constructor & Destructor Documentation

◆ TTreeRow() [1/5]

TTreeRow::TTreeRow ( TSQLRow original)
private

This is a shallow copy of a real row, i.e.

it only contains a pointer to the original.

Definition at line 67 of file TTreeRow.cxx.

◆ TTreeRow() [2/5]

TTreeRow::TTreeRow ( const TTreeRow )
private

◆ TTreeRow() [3/5]

TTreeRow::TTreeRow ( )

Single row of a query result.

Definition at line 30 of file TTreeRow.cxx.

◆ TTreeRow() [4/5]

TTreeRow::TTreeRow ( Int_t  nfields)

Single row of a query result.

Definition at line 42 of file TTreeRow.cxx.

◆ TTreeRow() [5/5]

TTreeRow::TTreeRow ( Int_t  nfields,
const Int_t fields,
const char *  row 
)

Single row of a query result.

Definition at line 54 of file TTreeRow.cxx.

◆ ~TTreeRow()

TTreeRow::~TTreeRow ( )
virtual

Destroy row object.

Definition at line 90 of file TTreeRow.cxx.

Member Function Documentation

◆ Close()

void TTreeRow::Close ( Option_t option = "")
virtual

Close row.

Implements TSQLRow.

Definition at line 99 of file TTreeRow.cxx.

◆ GetField()

const char * TTreeRow::GetField ( Int_t  field)
virtual

Get specified field from row (0 <= field < GetFieldCount()).

Implements TSQLRow.

Definition at line 143 of file TTreeRow.cxx.

◆ GetFieldLength()

ULong_t TTreeRow::GetFieldLength ( Int_t  field)
virtual

Get length in bytes of specified field.

Implements TSQLRow.

Definition at line 128 of file TTreeRow.cxx.

◆ IsValid()

Bool_t TTreeRow::IsValid ( Int_t  field)
private

Check if row is open and field index within range.

Definition at line 112 of file TTreeRow.cxx.

◆ operator=()

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

◆ SetRow()

void TTreeRow::SetRow ( const Int_t fields,
const char *  row 
)

The field and row information.

Definition at line 158 of file TTreeRow.cxx.

Friends And Related Function Documentation

◆ TTreePlayer

friend class TTreePlayer
friend

Definition at line 32 of file TTreeRow.h.

◆ TTreeResult

friend class TTreeResult
friend

Definition at line 31 of file TTreeRow.h.

Member Data Documentation

◆ fColumnCount

Int_t TTreeRow::fColumnCount
private

number of columns in row

Definition at line 35 of file TTreeRow.h.

◆ fFields

Int_t* TTreeRow::fFields
private

[fColumnCount] index in fRow of the end of each field

Definition at line 36 of file TTreeRow.h.

◆ fOriginal

TTreeRow* TTreeRow::fOriginal
private

! pointer to original row

Definition at line 38 of file TTreeRow.h.

◆ fRow

char* TTreeRow::fRow
private

string with all the fColumnCount fields

Definition at line 37 of file TTreeRow.h.

Libraries for TTreeRow:
[legend]

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