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Viewing changes to bzrlib/versionedfile.py

  • Committer: John Arbash Meinel
  • Date: 2006-07-14 04:04:50 UTC
  • mto: This revision was merged to the branch mainline in revision 1885.
  • Revision ID: john@arbash-meinel.com-20060714040450-8a2022f094a2b73c
Allow Versioned files to do caching if explicitly asked, and implement for Knit

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bzrlib/versionedfile.py
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    def __init__(self, access_mode):
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        self.finished = False
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        self._access_mode = access_mode
 
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        self._cache_data = False
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    def copy_to(self, name, transport):
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        """Copy this versioned file to name on transport."""
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        raise NotImplementedError(self.copy_to)
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    @deprecated_method(zero_eight)
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    def names(self):
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        """Return a list of all the versions in this versioned file.
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        if self._access_mode != 'w':
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            raise errors.ReadOnlyObjectDirtiedError(self)
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    def enable_cache(self):
 
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        """Tell this versioned file that it should cache any data it reads.
 
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        This is advisory, implementations do not have to support caching.
 
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        """
 
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        pass
 
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    def clear_cache(self):
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        """Remove any data cached in the versioned file object."""
 
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        """Remove any data cached in the versioned file object.
 
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        This only needs to be supported if caches are supported
 
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        """
 
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        pass
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    def clone_text(self, new_version_id, old_version_id, parents):
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        """Add an identical text to old_version_id as new_version_id.