A List of entry numbers in a TTree or TChain.
Note: It is recommended to use approaches such as TTreeReader::SetEntryRange or ROOT::RDataFrame instead of TEntryList if possible.
Use option entrylist to write the results of TTree::Draw and TChain::Draw into an entry list. Example:
When using the TEntryList interface directly, you can get the 'tree number' and entry in the current tree (i.e. value similar to the return value of LoadTree) from calling TEntryList::GetEntryAndTree:
to obtain the entry number within the chain you need to add to it the value of treeEntry+ch->GetTreeOffset()[treenum]
such that the loop in the previous example can also be written as:
To fill an TEntryList from a TSelector correctly, one must add the TEntryList object to the output list of the selector (TSelector::fOutput). This is the only way to make the sub-lists of the TEntryList switch when the current tree of the TChain is changed.
while the TTree::SetEntryList() function is only setting the TTree::fEntryList data member, the same function in TChain also finds correspondence between the TTrees of this TChain and the sub-lists of this TEntryList.
TEntryList objects are automatically added to the current directory (like TTrees). However, in case of a TEntryList for a chain, only the top-level entry list is added, not the sub-lists for specific trees. Placing entry lists in the current directory allows calling them as a part of a TTreeFormula expression, so if the user wants to extract a sublist from a TChain entry list via the GetEntryList() or some other function, they have to add it to the current directory to be able to use it in TTreeFormula expressions.
TTree::SetEventList() and TChain::SetEventList() transform a TEventList into a TEntryList See comments to those functions for more details
There are two types of entry lists:
for a TTree (fBlocks data member is non-zero) Entry numbers are stored in TEntryListBlocks, which, in their turn, are stored in the TObjArray fBlocks. The range of the entry numbers is cut into intervals of kBlockSize entries (currently 64000), so that the first block contains information which entries out of the first 64000 pass the selection, the second block - which entries out of the 64000-127999 interval pass the selection, etc. Some blocks, obviously, might be empty. The internal representation of entry numbers in the blocks is described in the TEntryListBlock class description, and this representation might be changed by calling OptimizeStorage() function (when the list is filled via the Enter() function, this is done automatically, except for the last block). Individual entry lists can be merged (functions Merge() and Add()) to make an entry list for a TChain of corresponding TTrees.
for a TChain (fLists data member is non-zero) It contains a TList of sub-lists (TEntryList objects, corresponding to each TTree) Trees and lists are matched by the TTree name and its file name (full path). All sub-lists are returned by the GetLists() function and individual lists are returned by GetEntryList() function. Such lists are no different from the lists for TTrees, described above.
Definition at line 25 of file TEntryList.h.
Public Types | |
enum | { kBlockSize = 64000 } |
Public Types inherited from TObject | |
enum | { kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 , kBitMask = 0x00ffffff } |
enum | { kSingleKey = (1ULL << ( 0 )) , kOverwrite = (1ULL << ( 1 )) , kWriteDelete = (1ULL << ( 2 )) } |
enum | EDeprecatedStatusBits { kObjInCanvas = (1ULL << ( 3 )) } |
enum | EStatusBits { kCanDelete = (1ULL << ( 0 )) , kMustCleanup = (1ULL << ( 3 )) , kIsReferenced = (1ULL << ( 4 )) , kHasUUID = (1ULL << ( 5 )) , kCannotPick = (1ULL << ( 6 )) , kNoContextMenu = (1ULL << ( 8 )) , kInvalidObject = (1ULL << ( 13 )) } |
Public Member Functions | |
TEntryList () | |
default c-tor | |
TEntryList (const char *name, const char *title) | |
c-tor with name and title | |
TEntryList (const char *name, const char *title, const char *treename, const char *filename) | |
c-tor with name and title, which also sets the treename and the filename | |
TEntryList (const char *name, const char *title, const TTree *tree) | |
constructor with name and title, which also sets the tree | |
TEntryList (const TEntryList &elist) | |
copy c-tor | |
TEntryList (const TTree *tree) | |
c-tor, which sets the tree | |
~TEntryList () override | |
Destructor. | |
virtual void | Add (const TEntryList *elist) |
Add 2 entry lists. | |
void | AddSubList (TEntryList *elist) |
Add a sub entry list to the current list. | |
virtual Int_t | Contains (Long64_t entry, TTree *tree=nullptr) |
virtual void | DirectoryAutoAdd (TDirectory *) |
Called by TKey and others to automatically add us to a directory when we are read from a file. | |
virtual bool | Enter (Long64_t entry, TTree *tree=nullptr) |
Add entry #entry to the list. | |
virtual bool | Enter (Long64_t localentry, const char *treename, const char *filename) |
void | EnterRange (Long64_t start, Long64_t end, TTree *tree=nullptr, UInt_t step=1U) |
Enter all entries in a range in the TEntryList. | |
virtual TEntryList * | GetCurrentList () const |
virtual TDirectory * | GetDirectory () const |
virtual Long64_t | GetEntriesToProcess () const |
virtual Long64_t | GetEntry (Long64_t index) |
Return the number of the entry #index of this TEntryList in the TTree or TChain See also Next(). | |
virtual Long64_t | GetEntryAndTree (Long64_t index, Int_t &treenum) |
Return the index of "index"-th non-zero entry in the TTree or TChain and the # of the corresponding tree in the chain. | |
virtual TEntryList * | GetEntryList (const char *treename, const char *filename, Option_t *opt="") |
Return the entry list, corresponding to treename and filename By default, the filename is first tried as is, and then, if the corresponding list is not found, the filename is expanded to the absolute path, and compared again. | |
virtual const char * | GetFileName () const |
virtual TList * | GetLists () const |
virtual Long64_t | GetN () const |
virtual bool | GetReapplyCut () const |
virtual const char * | GetTreeName () const |
virtual Int_t | GetTreeNumber () const |
TClass * | IsA () const override |
bool | IsValid () const |
virtual Int_t | Merge (TCollection *list) |
Merge this list with the lists from the collection. | |
virtual Long64_t | Next () |
Return the next non-zero entry index (next after fLastIndexQueried) this function is faster than GetEntry() | |
virtual void | OptimizeStorage () |
Checks if the array representation is more economical and if so, switches to it. | |
void | Print (const Option_t *option="") const override |
Print this list. | |
virtual Int_t | RelocatePaths (const char *newloc, const char *oldloc=nullptr) |
Relocate the file paths. | |
virtual bool | Remove (Long64_t entry, TTree *tree=nullptr) |
Remove entry #entry from the list. | |
virtual void | Reset () |
Reset this list. | |
virtual Int_t | ScanPaths (TList *roots, bool notify=true) |
Scan the paths to find the common roots. | |
virtual void | SetDirectory (TDirectory *dir) |
Add reference to directory dir. dir can be 0. | |
virtual void | SetEntriesToProcess (Long64_t nen) |
virtual void | SetFileName (const char *filename) |
virtual void | SetReapplyCut (bool apply=false) |
virtual void | SetShift (bool shift) |
virtual void | SetTree (const char *treename, const char *filename) |
If a list for a tree with such name and filename exists, sets it as the current sublist If not, creates this list and sets it as the current sublist. | |
virtual void | SetTree (const TTree *tree) |
If a list for a tree with such name and filename exists, sets it as the current sublist If not, creates this list and sets it as the current sublist The name of the file, where the tree is, is taken as tree->GetTree()->GetCurrentFile()->GetName() , and then expanded either to the absolute path, or to full url. | |
virtual void | SetTreeName (const char *treename) |
virtual void | SetTreeNumber (Int_t index) |
void | Streamer (TBuffer &) override |
Custom streamer for class TEntryList to handle the different interpretation of fFileName between version 1 and >1 . | |
void | StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b) |
virtual void | Subtract (const TEntryList *elist) |
Remove all the entries of this entry list, that are contained in elist. | |
Public Member Functions inherited from TNamed | |
TNamed () | |
TNamed (const char *name, const char *title) | |
TNamed (const TNamed &named) | |
TNamed copy ctor. | |
TNamed (const TString &name, const TString &title) | |
virtual | ~TNamed () |
TNamed destructor. | |
void | Clear (Option_t *option="") override |
Set name and title to empty strings (""). | |
TObject * | Clone (const char *newname="") const override |
Make a clone of an object using the Streamer facility. | |
Int_t | Compare (const TObject *obj) const override |
Compare two TNamed objects. | |
void | Copy (TObject &named) const override |
Copy this to obj. | |
virtual void | FillBuffer (char *&buffer) |
Encode TNamed into output buffer. | |
const char * | GetName () const override |
Returns name of object. | |
const char * | GetTitle () const override |
Returns title of object. | |
ULong_t | Hash () const override |
Return hash value for this object. | |
TClass * | IsA () const override |
Bool_t | IsSortable () const override |
void | ls (Option_t *option="") const override |
List TNamed name and title. | |
TNamed & | operator= (const TNamed &rhs) |
TNamed assignment operator. | |
void | Print (Option_t *option="") const override |
Print TNamed name and title. | |
virtual void | SetName (const char *name) |
Set the name of the TNamed. | |
virtual void | SetNameTitle (const char *name, const char *title) |
Set all the TNamed parameters (name and title). | |
virtual void | SetTitle (const char *title="") |
Set the title of the TNamed. | |
virtual Int_t | Sizeof () const |
Return size of the TNamed part of the TObject. | |
void | Streamer (TBuffer &) override |
Stream an object of class TObject. | |
void | StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b) |
Public Member Functions inherited from TObject | |
TObject () | |
TObject constructor. | |
TObject (const TObject &object) | |
TObject copy ctor. | |
virtual | ~TObject () |
TObject destructor. | |
void | AbstractMethod (const char *method) const |
Use this method to implement an "abstract" method that you don't want to leave purely abstract. | |
virtual void | AppendPad (Option_t *option="") |
Append graphics object to current pad. | |
virtual void | Browse (TBrowser *b) |
Browse object. May be overridden for another default action. | |
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. | |
virtual const char * | ClassName () const |
Returns name of class to which the object belongs. | |
virtual void | Delete (Option_t *option="") |
Delete this object. | |
virtual Int_t | DistancetoPrimitive (Int_t px, Int_t py) |
Computes distance from point (px,py) to the object. | |
virtual void | Draw (Option_t *option="") |
Default Draw method for all objects. | |
virtual void | DrawClass () const |
Draw class inheritance tree of the class to which this object belongs. | |
virtual TObject * | DrawClone (Option_t *option="") const |
Draw a clone of this object in the current selected pad with: gROOT->SetSelectedPad(c1) . | |
virtual void | Dump () const |
Dump contents of object on stdout. | |
virtual void | Error (const char *method, const char *msgfmt,...) const |
Issue error message. | |
virtual void | Execute (const char *method, const char *params, Int_t *error=nullptr) |
Execute method on this object with the given parameter string, e.g. | |
virtual void | Execute (TMethod *method, TObjArray *params, Int_t *error=nullptr) |
Execute method on this object with parameters stored in the TObjArray. | |
virtual void | ExecuteEvent (Int_t event, Int_t px, Int_t py) |
Execute action corresponding to an event at (px,py). | |
virtual void | Fatal (const char *method, const char *msgfmt,...) const |
Issue fatal error message. | |
virtual TObject * | FindObject (const char *name) const |
Must be redefined in derived classes. | |
virtual TObject * | FindObject (const TObject *obj) const |
Must be redefined in derived classes. | |
virtual Option_t * | GetDrawOption () const |
Get option used by the graphics system to draw this object. | |
virtual const char * | GetIconName () const |
Returns mime type name of object. | |
virtual char * | GetObjectInfo (Int_t px, Int_t py) const |
Returns string containing info about the object at position (px,py). | |
virtual Option_t * | GetOption () const |
virtual UInt_t | GetUniqueID () const |
Return the unique object id. | |
virtual Bool_t | HandleTimer (TTimer *timer) |
Execute action in response of a timer timing out. | |
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. | |
virtual void | Info (const char *method, const char *msgfmt,...) const |
Issue info message. | |
virtual Bool_t | InheritsFrom (const char *classname) const |
Returns kTRUE if object inherits from class "classname". | |
virtual Bool_t | InheritsFrom (const TClass *cl) const |
Returns kTRUE if object inherits from TClass cl. | |
virtual void | Inspect () const |
Dump contents of this object in a graphics canvas. | |
void | InvertBit (UInt_t f) |
Bool_t | IsDestructed () const |
IsDestructed. | |
virtual Bool_t | IsEqual (const TObject *obj) const |
Default equal comparison (objects are equal if they have the same address in memory). | |
virtual Bool_t | IsFolder () const |
Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). | |
R__ALWAYS_INLINE Bool_t | IsOnHeap () const |
R__ALWAYS_INLINE Bool_t | IsZombie () const |
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). | |
virtual Bool_t | Notify () |
This method must be overridden to handle object notification (the base implementation is no-op). | |
void | Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const |
Use this method to declare a method obsolete. | |
void | operator delete (void *ptr) |
Operator delete. | |
void | operator delete (void *ptr, void *vp) |
Only called by placement new when throwing an exception. | |
void | operator delete[] (void *ptr) |
Operator delete []. | |
void | operator delete[] (void *ptr, void *vp) |
Only called by placement new[] when throwing an exception. | |
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. | |
virtual void | Paint (Option_t *option="") |
This method must be overridden if a class wants to paint itself. | |
virtual void | Pop () |
Pop on object drawn in a pad to the top of the display list. | |
virtual Int_t | Read (const char *name) |
Read contents of object with specified name from the current directory. | |
virtual void | RecursiveRemove (TObject *obj) |
Recursively remove this object from a list. | |
void | ResetBit (UInt_t f) |
virtual void | SaveAs (const char *filename="", Option_t *option="") const |
Save this object in the file specified by filename. | |
virtual void | SavePrimitive (std::ostream &out, Option_t *option="") |
Save a primitive as a C++ statement(s) on output stream "out". | |
void | SetBit (UInt_t f) |
void | SetBit (UInt_t f, Bool_t set) |
Set or unset the user status bits as specified in f. | |
virtual void | SetDrawOption (Option_t *option="") |
Set drawing option for object. | |
virtual void | SetUniqueID (UInt_t uid) |
Set the unique object id. | |
void | StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b) |
virtual void | SysError (const char *method, const char *msgfmt,...) const |
Issue system error message. | |
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. | |
virtual void | Warning (const char *method, const char *msgfmt,...) const |
Issue warning message. | |
virtual Int_t | Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) |
Write this object to the current directory. | |
virtual Int_t | Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) const |
Write this object to the current directory. | |
Static Public Member Functions | |
static TClass * | Class () |
static const char * | Class_Name () |
static constexpr Version_t | Class_Version () |
static const char * | DeclFileName () |
static Int_t | Relocate (const char *fn, const char *newroot, const char *oldroot=nullptr, const char *enlnm=nullptr) |
Relocate entry list 'enlnm' in file 'fn' replacing 'oldroot' with 'newroot' in filenames. | |
static Int_t | Scan (const char *fn, TList *roots) |
Scan TEntryList in 'fn' to find the common parts of paths. | |
Static Public Member Functions inherited from TNamed | |
static TClass * | Class () |
static const char * | Class_Name () |
static constexpr Version_t | Class_Version () |
static const char * | DeclFileName () |
Static Public Member Functions inherited from TObject | |
static TClass * | Class () |
static const char * | Class_Name () |
static constexpr Version_t | Class_Version () |
static const char * | DeclFileName () |
static Longptr_t | GetDtorOnly () |
Return destructor only flag. | |
static Bool_t | GetObjectStat () |
Get status of object stat flag. | |
static void | SetDtorOnly (void *obj) |
Set destructor only flag. | |
static void | SetObjectStat (Bool_t stat) |
Turn on/off tracking of objects in the TObjectTable. | |
Protected Member Functions | |
void | GetFileName (const char *filename, TString &fn, bool *=nullptr) |
To be able to re-localize the entry-list we identify the file by just the name and the anchor, i.e. | |
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). | |
void | MakeZombie () |
Protected Attributes | |
TObjArray * | fBlocks |
blocks with indices of passing events (TEntryListBlocks) | |
TEntryList * | fCurrent |
! currently filled entry list | |
TDirectory * | fDirectory |
! Pointer to directory holding this tree | |
Long64_t | fEntriesToProcess |
used on proof to set the number of entries to process in a packet | |
TString | fFileName |
name of the file, where the tree is | |
Long64_t | fLastIndexQueried |
! used to optimize GetEntry() function from a loop | |
Long64_t | fLastIndexReturned |
! used to optimize GetEntry() function from a loop | |
TList * | fLists |
a list of underlying entry lists for each tree of a chain | |
Long64_t | fN |
number of entries in the list | |
Int_t | fNBlocks |
number of TEntryListBlocks | |
bool | fReapply |
If true, TTree::Draw will 'reapply' the original cut. | |
bool | fShift |
! true when some sub-lists don't correspond to trees (when the entry list is used as input in TChain) | |
ULong_t | fStringHash |
! Hash value of a string of treename and filename | |
TString | fTreeName |
name of the tree | |
Int_t | fTreeNumber |
! the index of the tree in the chain (used when the entry list is used as input (TTree::SetEntryList()) | |
Protected Attributes inherited from TNamed | |
TString | fName |
TString | fTitle |
Private Member Functions | |
TEntryList & | operator= (const TEntryList &) |
Friends | |
TEntryList | operator|| (TEntryList &elist1, TEntryList &elist2) |
Additional Inherited Members | |
Protected Types inherited from TObject | |
enum | { kOnlyPrepStep = (1ULL << ( 3 )) } |
#include <TEntryList.h>
anonymous enum |
Enumerator | |
---|---|
kBlockSize |
Definition at line 54 of file TEntryList.h.
TEntryList::TEntryList | ( | ) |
default c-tor
Definition at line 167 of file TEntryList.cxx.
TEntryList::TEntryList | ( | const char * | name, |
const char * | title | ||
) |
c-tor with name and title
Definition at line 188 of file TEntryList.cxx.
TEntryList::TEntryList | ( | const char * | name, |
const char * | title, | ||
const TTree * | tree | ||
) |
constructor with name and title, which also sets the tree
Definition at line 214 of file TEntryList.cxx.
TEntryList::TEntryList | ( | const char * | name, |
const char * | title, | ||
const char * | treename, | ||
const char * | filename | ||
) |
c-tor with name and title, which also sets the treename and the filename
Definition at line 236 of file TEntryList.cxx.
TEntryList::TEntryList | ( | const TTree * | tree | ) |
c-tor, which sets the tree
Definition at line 258 of file TEntryList.cxx.
TEntryList::TEntryList | ( | const TEntryList & | elist | ) |
copy c-tor
Definition at line 281 of file TEntryList.cxx.
|
override |
Destructor.
Definition at line 329 of file TEntryList.cxx.
|
virtual |
Add 2 entry lists.
[in] | elist | The list that should be added to the current one. |
Reimplemented in TEntryListFromFile, and TEntryListArray.
Definition at line 365 of file TEntryList.cxx.
void TEntryList::AddSubList | ( | TEntryList * | elist | ) |
Add a sub entry list to the current list.
[in] | elist | an entry list that should be added as a sub list of this list. |
This function is specifically targeted at situations where there is a global TEntryList that should hold one or more sub TEntryList objects. For example, if one wants to create a one to one mapping between the sub entry lists and the trees in the files that make a TChain. Note that in such cases this configuration of the entry list should be used in pair with the option "sync"
of the function TChain::SetEntryList
Definition at line 572 of file TEntryList.cxx.
|
static |
|
inlinestaticconstexpr |
Definition at line 125 of file TEntryList.h.
Reimplemented in TEntryListArray, and TEntryListFromFile.
Definition at line 590 of file TEntryList.cxx.
|
inlinestatic |
Definition at line 125 of file TEntryList.h.
|
virtual |
Called by TKey and others to automatically add us to a directory when we are read from a file.
Definition at line 619 of file TEntryList.cxx.
Add entry #entry to the list.
Reimplemented in TEntryListArray, and TEntryListFromFile.
Definition at line 631 of file TEntryList.cxx.
|
virtual |
Reimplemented in TEntryListArray, and TEntryListFromFile.
Definition at line 679 of file TEntryList.cxx.
void TEntryList::EnterRange | ( | Long64_t | start, |
Long64_t | end, | ||
TTree * | tree = nullptr , |
||
UInt_t | step = 1U |
||
) |
Enter all entries in a range in the TEntryList.
[in] | start | starting entry to enter. |
[in] | end | ending entry to enter. |
[in] | tree | passed as is to TEntryList::Enter. |
[in] | step | step increase of the loop entering the entries. |
This is a helper function that enters all entries between start
(inclusive) and end
(exclusive) to the TEntryList in a loop. It is useful also in PyROOT to avoid having to do the same in a Python loop.
Definition at line 703 of file TEntryList.cxx.
|
inlinevirtual |
Reimplemented in TEntryListFromFile.
Definition at line 71 of file TEntryList.h.
|
inlinevirtual |
Definition at line 77 of file TEntryList.h.
|
inlinevirtual |
Definition at line 75 of file TEntryList.h.
Return the number of the entry #index of this TEntryList in the TTree or TChain See also Next().
Reimplemented in TEntryListFromFile.
Definition at line 759 of file TEntryList.cxx.
Return the index of "index"-th non-zero entry in the TTree or TChain and the # of the corresponding tree in the chain.
Reimplemented in TEntryListFromFile.
Definition at line 835 of file TEntryList.cxx.
|
virtual |
Return the entry list, corresponding to treename and filename By default, the filename is first tried as is, and then, if the corresponding list is not found, the filename is expanded to the absolute path, and compared again.
To avoid it, use option "ne"
Reimplemented in TEntryListFromFile.
Definition at line 889 of file TEntryList.cxx.
|
inlinevirtual |
Reimplemented in TEntryListFromFile.
Definition at line 80 of file TEntryList.h.
|
protected |
To be able to re-localize the entry-list we identify the file by just the name and the anchor, i.e.
we drop protocol, host, options, ... The result in the form 'file::anchor' (or 'file', if no anchor is present) is saved in 'fn'. The function optionally (is 'local' is defined) checks file locality (i.e. protocol 'file://') returning the result in '*local' .
Definition at line 870 of file TEntryList.cxx.
|
inlinevirtual |
Definition at line 76 of file TEntryList.h.
|
inlinevirtual |
Reimplemented in TEntryListFromFile.
Definition at line 78 of file TEntryList.h.
|
inlinevirtual |
Definition at line 82 of file TEntryList.h.
|
inlinevirtual |
Reimplemented in TEntryListFromFile.
Definition at line 79 of file TEntryList.h.
|
inlinevirtual |
Reimplemented in TEntryListFromFile.
Definition at line 81 of file TEntryList.h.
|
inlineoverridevirtual |
Reimplemented from TObject.
Reimplemented in TEntryListArray, and TEntryListFromFile.
Definition at line 125 of file TEntryList.h.
|
inline |
Definition at line 84 of file TEntryList.h.
|
virtual |
Merge this list with the lists from the collection.
Reimplemented in TEntryListFromFile.
Definition at line 979 of file TEntryList.cxx.
|
virtual |
Return the next non-zero entry index (next after fLastIndexQueried) this function is faster than GetEntry()
Reimplemented in TEntryListFromFile.
Definition at line 998 of file TEntryList.cxx.
|
private |
|
virtual |
Checks if the array representation is more economical and if so, switches to it.
Reimplemented in TEntryListFromFile.
Definition at line 1085 of file TEntryList.cxx.
|
override |
Print this list.
Definition at line 1101 of file TEntryList.cxx.
|
static |
Relocate entry list 'enlnm' in file 'fn' replacing 'oldroot' with 'newroot' in filenames.
If 'enlnm' is null or '*' all entry lists in the file are relocated. Relocation is mandatory to use the entry-list with the same dataset at a different location (i.e. on a different cluster, machine or disks). This function can be called as many times as need to reach the desired result. The existing 'locations' can be checked qith TEntryList::Scan .
Definition at line 1465 of file TEntryList.cxx.
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Relocate the file paths.
If oldroot
is defined, replace oldroot
with newroot
in all file names, i.e. oldroot/re/st/of/the/path
will become newroot
/re/st/of/the/path. If
oldrootis null, the new path will be just
newroot/path`. Relocation is mandatory to use the entry-list with the same dataset at a different location (i.e. on a different cluster, machine or disks).
Definition at line 1406 of file TEntryList.cxx.
Remove entry #entry from the list.
Reimplemented in TEntryListArray, and TEntryListFromFile.
Definition at line 717 of file TEntryList.cxx.
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Scan TEntryList in 'fn' to find the common parts of paths.
If 'roots' is defined, add the found roots to the list as TObjStrings. Return the number of common root paths found.
Definition at line 1608 of file TEntryList.cxx.
Scan the paths to find the common roots.
If 'roots' is defined, add the found roots to the list as TObjStrings. Return the number of roots found.
Definition at line 1551 of file TEntryList.cxx.
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Add reference to directory dir. dir can be 0.
Definition at line 1170 of file TEntryList.cxx.
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Definition at line 101 of file TEntryList.h.
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inlinevirtual |
Definition at line 106 of file TEntryList.h.
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Definition at line 108 of file TEntryList.h.
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Definition at line 102 of file TEntryList.h.
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If a list for a tree with such name and filename exists, sets it as the current sublist If not, creates this list and sets it as the current sublist.
! the filename is taken as provided, no extensions to full path or url !
Reimplemented in TEntryListFromFile, and TEntryListArray.
Definition at line 1184 of file TEntryList.cxx.
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If a list for a tree with such name and filename exists, sets it as the current sublist If not, creates this list and sets it as the current sublist The name of the file, where the tree is, is taken as tree->GetTree()->GetCurrentFile()->GetName()
, and then expanded either to the absolute path, or to full url.
If, for some reason, you want to provide the filename in a different format, use SetTree(const char *treename, const char *filename), where the filename is taken "as is".
Reimplemented in TEntryListFromFile, and TEntryListArray.
Definition at line 1296 of file TEntryList.cxx.
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Definition at line 105 of file TEntryList.h.
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Reimplemented in TEntryListFromFile.
Definition at line 107 of file TEntryList.h.
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Custom streamer for class TEntryList to handle the different interpretation of fFileName between version 1 and >1 .
Reimplemented from TObject.
Reimplemented in TEntryListArray, and TEntryListFromFile.
Definition at line 1643 of file TEntryList.cxx.
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Definition at line 125 of file TEntryList.h.
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Remove all the entries of this entry list, that are contained in elist.
Reimplemented in TEntryListFromFile, and TEntryListArray.
Definition at line 1332 of file TEntryList.cxx.
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Definition at line 1385 of file TEntryList.cxx.
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blocks with indices of passing events (TEntryListBlocks)
Definition at line 35 of file TEntryList.h.
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! currently filled entry list
Definition at line 32 of file TEntryList.h.
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! Pointer to directory holding this tree
Definition at line 48 of file TEntryList.h.
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used on proof to set the number of entries to process in a packet
Definition at line 37 of file TEntryList.h.
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name of the file, where the tree is
Definition at line 39 of file TEntryList.h.
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! used to optimize GetEntry() function from a loop
Definition at line 44 of file TEntryList.h.
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! used to optimize GetEntry() function from a loop
Definition at line 45 of file TEntryList.h.
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a list of underlying entry lists for each tree of a chain
Definition at line 31 of file TEntryList.h.
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number of entries in the list
Definition at line 36 of file TEntryList.h.
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number of TEntryListBlocks
Definition at line 34 of file TEntryList.h.
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If true, TTree::Draw will 'reapply' the original cut.
Definition at line 49 of file TEntryList.h.
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! true when some sub-lists don't correspond to trees (when the entry list is used as input in TChain)
Definition at line 46 of file TEntryList.h.
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! Hash value of a string of treename and filename
Definition at line 40 of file TEntryList.h.
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name of the tree
Definition at line 38 of file TEntryList.h.
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! the index of the tree in the chain (used when the entry list is used as input (TTree::SetEntryList())
Definition at line 41 of file TEntryList.h.