source: mauRepo/MolesManager/trunk/src/ea_model/iso_19107_2003_spatial_schema/geometry/geometric_complex/gm_complexboundary.py @ 8160

Subversion URL: http://proj.badc.rl.ac.uk/svn/ndg/mauRepo/MolesManager/trunk/src/ea_model/iso_19107_2003_spatial_schema/geometry/geometric_complex/gm_complexboundary.py@8160
Revision 8160, 1.2 KB checked in by mnagni, 8 years ago (diff)

This new DB library adds better hash algorithm and a bug fix for the classes eq method

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[8049]21from ea_model.iso_19107_2003_spatial_schema.geometry.geometry_root.gm_boundary import  GM_Boundary
[8160]22from ascore.utils import has_value, collectionProofHash
[8045]23
24'''
[8160]25Created on 13-Mar-2012 11:08:13
[8045]26
27@author: mnagni
28'''
29
30class GM_ComplexBoundary(GM_Boundary):
[8074]31    '''
32        Represents a data entity defined in a UML diagram and supposed to
33        be persisted in a relational database.
[8045]34 
[8074]35        This class has been genererated automatically using the Apache Velocity project.
36    '''
37    '''
38        Please note that any access to the inner attributes should be done using
39        the given get/set methods and NOT accessing them directly.
40    '''
41    def __init__(self):
42        self._gm_boundary = GM_Boundary()       
43
44        super(GM_ComplexBoundary, self).__init__()
[8086]45
46    def __key(self):
47        return ()
48
[8088]49    def __eq__(self, y):
[8160]50        if type(self) != type(y):
51            return False
[8086]52        '''
53        Cannot compare classes which do not define a "__key" attribute
54        '''
[8088]55        if hasattr(self, '_%s__key' % (type(self).__name__)) and hasattr(y, '_%s__key' % (type(y).__name__)):
56            return self.__key() == y.__key()
57        return id(self) == id(y)
[8086]58
59    def __hash__(self):
[8160]60        return collectionProofHash(self.__key())
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