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author | Michael Trier <mtrier@gmail.com> | 2008-05-07 16:49:48 -0400 |
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committer | Michael Trier <mtrier@gmail.com> | 2008-05-07 16:49:48 -0400 |
commit | 33ebe7acec14b25c5f84f35a664803fcab2f7781 (patch) | |
tree | 960b40fe368a9882221bcdd8635b9080dec01ec6 /lib/git_python/lazy.py | |
download | gitpython-33ebe7acec14b25c5f84f35a664803fcab2f7781.tar.gz |
initial project
Diffstat (limited to 'lib/git_python/lazy.py')
-rw-r--r-- | lib/git_python/lazy.py | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/lib/git_python/lazy.py b/lib/git_python/lazy.py new file mode 100644 index 00000000..f6d31e8d --- /dev/null +++ b/lib/git_python/lazy.py @@ -0,0 +1,26 @@ +class LazyMixin(object): + lazy_properties = [] + + def __init__(self): + self.__baked__ = False + + def __getattribute__(self, attr): + val = object.__getattribute__(self, attr) + if val is not None: + return val + else: + self.__prebake__() + return object.__getattribute__(self, attr) + + def __bake__(self): + """ This method should be overridden in the derived class. """ + raise NotImplementedError(" '__bake__' method has not been implemented.") + + def __prebake__(self): + if self.__baked__: + return + self.__bake__() + self.__baked__ = True + + def __bake_it__(self): + self.__baked__ = True |