python.Handle Class Reference

## Handle

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Public Member Functions
def	__init__
def	__str__
def	isValid
def	product

Private Member Functions
def	_addressOf
def	_setStatus
def	_typeInfoGetter
	Private member functions ##. More...

Private Attributes
	_exception
	_type
	_typeInfo
	_wrapper

Detailed Description

## Handle

Python interface to FWLite Handle class

Definition at line 49 of file __init__.py.

Constructor & Destructor Documentation

def python.Handle.__init__	(		self,
			typeString,
			kwargs
	)

Initialize python handle wrapper 

Definition at line 54 of file __init__.py.

                  **kwargs):
        """Initialize python handle wrapper """
        # turn off warnings
        oldWarningLevel = ROOT.gErrorIgnoreLevel
        ROOT.gErrorIgnoreLevel = ROOT.kError
        self._type      = typeString 
        self._wrapper   = ROOT.edm.Wrapper (self._type)()
        self._typeInfo  = self._wrapper.typeInfo()
        self._exception = RuntimeError ("getByLabel not called for '%s'", self)
        ROOT.SetOwnership (self._wrapper, False)
        # restore warning state
        ROOT.gErrorIgnoreLevel = oldWarningLevel
        # O.k.  This is a little weird.  We want a pointer to an EDM
        # wrapper, but we don't want the memory it is pointing to.
        # So, we've created it and grabbed the type info.  Since we
        # don't want a memory leak, we destroy it.
        if kwargs.get ('noDelete'):
            print "Not deleting wrapper"
            del kwargs['noDelete']
        else:
            self._wrapper.IsA().Destructor( self._wrapper )
        # Since we deleted the options as we used them, that means
        # that kwargs should be empty.  If it's not, that means that
        # somebody passed in an argument that we're not using and we
        # should complain.
        if len (kwargs):
            raise RuntimeError, "Unknown arguments %s" % kwargs