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  • Committer: Robert Collins
  • Date: 2005-09-27 07:24:40 UTC
  • mfrom: (1185.1.41)
  • Revision ID: robertc@robertcollins.net-20050927072440-1bf4d99c3e1db5b3
pair programming worx... merge integration and weave

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bzrlib/meta_store.py
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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from trace import mutter
 
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from bzrlib.trace import mutter
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from bzrlib.store import ImmutableStore
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class CachedStore:
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    """A store that caches data locally, to avoid repeated downloads.
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    The precacache method should be used to avoid server round-trips for
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        """Copy a series of ids into the cache, before they are used.
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        For remote stores that support pipelining or async downloads, this can
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        increase speed considerably.
 
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        Failures while prefetching are ignored.
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        """
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        mutter("Prefetch of ids %s" % ",".join(ids))
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        self.cache_store.copy_multi(self.source_store, ids)
 
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        self.cache_store.copy_multi(self.source_store, ids, 
 
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                                    permit_failure=True)