Log of /trunk/tree/tree/inc/TBufferSQL.h
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Revision
49019 -
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Modified
Sun Mar 31 17:18:33 2013 UTC (21 months, 3 weeks ago) by
pcanal
File length: 6548 byte(s)
Diff to
previous 25450
Import revision 48931 from the v5-34-00 patch branch:
Add the concept of implicit rules to (centrally) support automatic translation of
STL collection from numeric type to other numeric type or for when the contained
class has some rules. Currently enabled only when the target is an std::vector.
Implement the transformation from STL container of numeric to any other numeric
type (both in TGenCollectionStreamer and TStreamerInfo[Actions]).
Migrate more of the conversions to TStreamerInfoActions.
Fix the Conversion of a Double32 or Float16 inside a collection of object to another
type (the previous implemetation was not supporting the customization of the factor
nor the number of bits).
Add TBuffer::ReadFastArrayWithNbits and WithFactor for use in the StreamerInfo Actions.
TStreamerInfoActions:
Introduce WithFactorMarker and NoFactorMarker to allow for less code duplicaton when
supporting Float16_t and Double32_t.
Replace the collection-memberwise action from loop over simple operation to using
ReadFastArray (to be compatible with TBufferXML).
Revision
25450 -
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Modified
Thu Sep 18 21:13:42 2008 UTC (6 years, 4 months ago) by
pcanal
File length: 6168 byte(s)
Diff to
previous 22902
Import the code from the branch dev/datamodelevolution revision 25436
This implements the infrastructure for the new Data Model Evolution Scheme.
This Data Model Evolution is brought to your courtesy of BNL/STAR/ATLAS/Fermi/Cern
Current Capabilities:
Assign values to transient data members
Rename classes
Rename data members
Change the shape of the data structures or convert one class structure to another
Change the meaning of data members
Ability to access the TBuffer directly when needed
Ensure that the objects in collections are handled in the same way as the ones stored separately
Supported in object-wise, member-wise and split modes.
Coming soon:
Make things operational also in bare ROOT mode
Ability to transform data before writing
Support for changing the class type of nested object in a split branch
Support for access to onfile version of nested objects from within the parent rule
LinkDef rule syntax:
Setting a transient member:
#pragma read sourceClass="ACache" targetClass="ACache" source="" version="[1-]" target="zcalc" \
code="{ zcalc = false; }"
Setting a new member from 2 removed members
#pragma read sourceClass="ACache" targetClass="ACache" source="int x; int y; char c" version="[8]" target="z" \
code="{ z = onfile.x*1000 + onfile.y*10; }"
Renaming a class
#pragma read sourceClass="ACache" version="[8]" targetClass="Axis" \
source="int x; int y;" target="z" \
code="{ z = onfile.x*1000 + onfile.y*
#pragma read sourceClass="ACache" version="[9]" targetClass="Axis";
Selection XML syntax
<read sourceClass="ACache" targetClass="ACache" source="" version="[1-]" target="zcalc">
<![CDATA[
{ zcalc = false; }
]]></read>
Revision
17402 -
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Modified
Fri Jan 19 16:48:00 2007 UTC (8 years ago) by
brun
Original Path:
trunk/tree/inc/TBufferSQL.h
File length: 6078 byte(s)
Diff to
previous 13313
CVs been changed into a pure abstract interface.
The concrete implementation is in the new class TBufferFile.
All classes previously deriving from TBuffer derive now from TBufferFile, ie
TBuffer <- TBufferFile <- TMessage
<- TBufferXML
<- TBufferSQL
<- TBufferSQL2
Because there are several problems with C++ operators overloading,
The I/O operators are defined in TBuffer. These are inline functions
calling C++ virtual functions defined in TBuffer and overloaded
by TBufferFile and all other derived classes when necessary.
The previous implementation of TBuffer.h included <vector> and Bytes.h.
The two include statements have been moved to TBufferFile.h. As a result the
compilation of the ROOT system is now slightly faster and a big bonus
is that changes in TBufferFile or Bytes.h will affect only TBufferFile
and will not force the recompilation of the entire system.
This change has some side-effects. If you assumed that include <vector>
was done by TBuffer.h, you may have to specify this include directly
in your class. This was the case for a few ROOT classes.
: ----------------------------------------------------------------------
Revision
12483 -
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Added
Mon Aug 15 21:29:58 2005 UTC (9 years, 5 months ago) by
pcanal
Original Path:
trunk/tree/inc/TBufferSQL.h
File length: 5755 byte(s)
First version of TTreeSQL facility.
This allow the storing and restoring of TTree into an SQL database
TSQLServer *dbserver = TSQLServer::Connect("mysql://localhost:3306/rootDev","rootdevel", "r00tg6ys");
dbserver->Query("drop table ntuple;");
ntuple = new TTreeSQL(dbserver, "rootDev", "ntuple");
If the database contain a table named ntuple, this will connect to it
and let you use any of TTree functionality on (Scan, Draw, etc.)
If the database does not contain a table named ntuple, it will created
once you called the first Fill on the TTree.
This version supports the leaflist type of branches.
This form allows you to request diffs between any two revisions of this file.
For each of the two "sides" of the diff,
enter a numeric revision.
