xAOD::TPyEvent Class Reference

#include <TPyEvent.h>

Inheritance diagram for xAOD::TPyEvent:

List of all members.

Public Member Functions
	TPyEvent ()
	Default constructor.
::Bool_t	contains (const std::string &key, const std::string &type)
	Function checking if an object is available from the store.
::Bool_t	transientContains (const std::string &key, const std::string &type) const
	Function checking if an object is already in memory.
TReturnCode	record (void *obj, const std::string &key, const std::string &type,::Int_t basketSize=32000,::Int_t splitLevel=0)
	Add an output object to the event.

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Detailed Description

Python interface to xAOD::TEvent

In order to make it possible to record objects that are created in Python, into an xAOD::TEvent object (in order to record selected objects into an output file for instance), this class extends the xAOD::TEvent object with some non-template functions. Functions that are inconvenient to use from C++, but which allow for much more flexibility in PyROOT.

Author:

Attila Krasznahorkay <Attila.Krasznahorkay@cern.ch>

Revision

649835

Date

2015-02-26 09:19:01 +0100 (Thu, 26 Feb 2015)

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Member Function Documentation

TReturnCode xAOD::TPyEvent::record	(	void *	obj,
		const std::string &	key,
		const std::string &	type,
		::Int_t	basketSize = 32000,
		::Int_t	splitLevel = 0
	)

Add an output object to the event.

This function is designed to be callable from PyROOT in order to record hand-made containers into an output file.

Notice that unline TEvent::record(...), this function doesn't take ownership of the object that's given to it. That's because all objects created by the Python interpreter are garbage collected by the Python interpreter. And we don't want to run into double-deletes.

Parameters:

	obj	Typeless pointer to the object that is to be recorded
	key	The key with which the object is to be recorded
	type	The type name of the object being recorded
	basketSize	The size of the baskets used to write the payload
	splitLevel	The split level of the branch created

Returns:

The usual xAOD::TReturnCode types

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

• /cvmfs/atlas.cern.ch/repo/sw/ASG/AnalysisBase/2.4.31/xAODRootAccess/xAODRootAccess/TPyEvent.h
• /cvmfs/atlas.cern.ch/repo/sw/ASG/AnalysisBase/2.4.31/xAODRootAccess/Root/TPyEvent.cxx