ROOT 6.08/07 Reference Guide |
Used by TEntryList to store the entry numbers.
There are 2 ways to represent entry numbers in a TEntryListBlock:
In both cases, a UShort_t* is used. The second option is better in case less than 1/16 or more than 15/16 of entries pass the selection, and the representation can be changed by calling OptimizeStorage() function. When the block is being filled, it's always stored as bits, and the OptimizeStorage() function is called by TEntryList when it starts filling the next block. If Enter() or Remove() is called after OptimizeStorage(), representation is again changed to 1).
Definition at line 45 of file TEntryListBlock.h.
Public Types | |
enum | { kBlockSize = 4000 } |
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 | |
TEntryListBlock () | |
Default c-tor. More... | |
TEntryListBlock (const TEntryListBlock &eblock) | |
Copy c-tor. More... | |
~TEntryListBlock () | |
Destructor. More... | |
Int_t | Contains (Int_t entry) |
True if the block contains entry #entry. More... | |
Bool_t | Enter (Int_t entry) |
If the block has already been optimized and the entries are stored as a list and not as bits, trying to enter a new entry will make the block switch to bits representation. More... | |
Int_t | GetEntry (Int_t entry) |
Return entry #entry. More... | |
Int_t | GetNPassed () |
Returns the number of entries, passing the selection. More... | |
Int_t | GetType () |
Int_t | Merge (TEntryListBlock *block) |
Merge with the other block Returns the resulting number of entries in the block. More... | |
Int_t | Next () |
Return the next non-zero entry Faster than GetEntry() function. More... | |
TEntryListBlock & | operator= (const TEntryListBlock &rhs) |
void | OptimizeStorage () |
If there are < kBlockSize or >kBlockSize*15 entries, change to an array representation. More... | |
virtual void | Print (const Option_t *option="") const |
Print the entries in this block. More... | |
void | PrintWithShift (Int_t shift) const |
Print the indices of this block + shift (used from TEntryList::Print()) to print the corrent values. More... | |
Bool_t | Remove (Int_t entry) |
Remove entry #entry If the block has already been optimized and the entries are stored as a list and not as bits, trying to remove a new entry will make the block switch to bits representation. More... | |
void | ResetIndices () |
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 TObject * | Clone (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 TObject * | DrawClone (Option_t *option="") const |
Draw a clone of this object in the current pad. 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 TObject * | FindObject (const char *name) const |
Must be redefined in derived classes. More... | |
virtual TObject * | FindObject (const TObject *obj) const |
Must be redefined in derived classes. More... | |
virtual Option_t * | GetDrawOption () 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_t * | GetOption () 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... | |
void * | operator new (size_t sz) |
void * | operator new (size_t sz, void *vp) |
void * | operator new[] (size_t sz) |
void * | operator new[] (size_t sz, void *vp) |
TObject & | operator= (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... | |
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 | |
void | Transform (Bool_t dir, UShort_t *indexnew) |
Transform the existing fIndices. 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 | |
UShort_t | fCurrent |
! to fasten Contains() in list mode More... | |
UShort_t * | fIndices |
[fN] More... | |
Int_t | fLastIndexQueried |
! to optimize GetEntry() in a loop More... | |
Int_t | fLastIndexReturned |
! to optimize GetEntry() in a loop More... | |
Int_t | fN |
size of fIndices for I/O =fNPassed for list, fBlockSize for bits More... | |
Int_t | fNPassed |
number of entries in the entry list (if fPassing=0 - number of entries not in the entry list More... | |
Bool_t | fPassing |
1 - stores entries that belong to the list 0 - stores entries that don't belong to the list More... | |
Int_t | fType |
0 - bits, 1 - list More... | |
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 <TEntryListBlock.h>
anonymous enum |
Enumerator | |
---|---|
kBlockSize |
Definition at line 63 of file TEntryListBlock.h.
TEntryListBlock::TEntryListBlock | ( | ) |
Default c-tor.
Definition at line 55 of file TEntryListBlock.cxx.
TEntryListBlock::TEntryListBlock | ( | const TEntryListBlock & | eblock | ) |
Copy c-tor.
Definition at line 70 of file TEntryListBlock.cxx.
TEntryListBlock::~TEntryListBlock | ( | ) |
Destructor.
Definition at line 91 of file TEntryListBlock.cxx.
True if the block contains entry #entry.
Definition at line 195 of file TEntryListBlock.cxx.
If the block has already been optimized and the entries are stored as a list and not as bits, trying to enter a new entry will make the block switch to bits representation.
Definition at line 129 of file TEntryListBlock.cxx.
Int_t TEntryListBlock::GetNPassed | ( | ) |
Returns the number of entries, passing the selection.
In case, when the block stores entries that pass (fPassing=1) returns fNPassed
Definition at line 371 of file TEntryListBlock.cxx.
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inline |
Definition at line 77 of file TEntryListBlock.h.
Int_t TEntryListBlock::Merge | ( | TEntryListBlock * | block | ) |
Merge with the other block Returns the resulting number of entries in the block.
Definition at line 244 of file TEntryListBlock.cxx.
Int_t TEntryListBlock::Next | ( | ) |
Return the next non-zero entry Faster than GetEntry() function.
Definition at line 448 of file TEntryListBlock.cxx.
TEntryListBlock & TEntryListBlock::operator= | ( | const TEntryListBlock & | rhs | ) |
Definition at line 100 of file TEntryListBlock.cxx.
void TEntryListBlock::OptimizeStorage | ( | ) |
If there are < kBlockSize or >kBlockSize*15 entries, change to an array representation.
Definition at line 548 of file TEntryListBlock.cxx.
Print the entries in this block.
Definition at line 494 of file TEntryListBlock.cxx.
Print the indices of this block + shift (used from TEntryList::Print()) to print the corrent values.
Definition at line 505 of file TEntryListBlock.cxx.
Remove entry #entry If the block has already been optimized and the entries are stored as a list and not as bits, trying to remove a new entry will make the block switch to bits representation.
Definition at line 167 of file TEntryListBlock.cxx.
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inline |
Definition at line 76 of file TEntryListBlock.h.
Transform the existing fIndices.
Definition at line 565 of file TEntryListBlock.cxx.
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protected |
! to fasten Contains() in list mode
Definition at line 55 of file TEntryListBlock.h.
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protected |
[fN]
Definition at line 51 of file TEntryListBlock.h.
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protected |
! to optimize GetEntry() in a loop
Definition at line 56 of file TEntryListBlock.h.
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protected |
! to optimize GetEntry() in a loop
Definition at line 57 of file TEntryListBlock.h.
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protected |
size of fIndices for I/O =fNPassed for list, fBlockSize for bits
Definition at line 50 of file TEntryListBlock.h.
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protected |
number of entries in the entry list (if fPassing=0 - number of entries not in the entry list
Definition at line 48 of file TEntryListBlock.h.
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protected |
1 - stores entries that belong to the list 0 - stores entries that don't belong to the list
Definition at line 53 of file TEntryListBlock.h.
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protected |
0 - bits, 1 - list
Definition at line 52 of file TEntryListBlock.h.