c.d.m.PouringLoop : class documentation

Part of canonical.database.multitablecopy View In Hierarchy

Implements interfaces: canonical.launchpad.interfaces.looptuner.ITunableLoop

Loop body to pour data from holding tables back into source tables.

Used by MultiTableCopy internally to tell DBLoopTuner what to do.

Method __init__ Undocumented
Method isDone See ITunableLoop.
Method __call__ See ITunableLoop.
Method prepareBatch If batch_pouring_callback is defined, call it.
Method _commit Commit ongoing transaction, start a new one.
def __init__(self, from_table, to_table, transaction_manager, logger, batch_pouring_callback=None):
Undocumented
def isDone(self):
from canonical.launchpad.interfaces.looptuner.ITunableLoop
See ITunableLoop.
def __call__(self, batch_size):
from canonical.launchpad.interfaces.looptuner.ITunableLoop
See ITunableLoop.

Loop body: pour rows with ids up to "next" over to to_table.

def _commit(self):
Commit ongoing transaction, start a new one.
def prepareBatch(self, from_table, to_table, batch_size, begin_id, end_id):
If batch_pouring_callback is defined, call it.
API Documentation for Launchpad, generated by pydoctor at 2010-09-27 00:00:11.