GaudiKernel.PropertyProxy Namespace Reference

Classes
class	GaudiHandleArrayPropertyProxy
class	GaudiHandlePropertyProxy
class	GaudiHandlePropertyProxyBase
class	PropertyProxy

Functions
def	derives_from
def	_isCompatible
def	PropertyProxyFactory

Variables
list	__all__ = [ 'PropertyProxy', 'GaudiHandlePropertyProxy', 'GaudiHandleArrayPropertyProxy' ]
	data ------------------------------------------------------------------— More...
tuple	log = logging.getLogger( 'PropertyProxy' )

Function Documentation

def GaudiKernel.PropertyProxy._isCompatible (   tp,   value  )

private

Definition at line 30 of file PropertyProxy.py.

def _isCompatible( tp, value ):
    errmsg = "received an instance of %s, but %s expected" % (type(value),tp)

    if derives_from(value, 'PropertyReference'):
        # TODO: implement type checking for references
        return value # references are valid
    if ( tp is str ):
        if ( type(value) is str ) or derives_from(value, 'Configurable'):
            # we can set string properties only from strings or configurables
            return value
        else:
            raise ValueError( errmsg )
    elif ( tp in [ list, tuple, dict ] ):
        if ( type(value) is tp ):
            # We need to check that the types match for lists, tuples and
            # dictionaries (bug #34769).
            return value
        else:
            raise ValueError( errmsg )
    elif derives_from(tp, 'Configurable'):
        return value
    else:
        # all other types: accept if conversion allowed
        try:
            dummy = tp( value )
        except (TypeError,ValueError):
            raise ValueError( errmsg )

    return dummy         # in case of e.g. classes with __int__, __iter__, etc. implemented