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Commit 3ba0f536 authored by Gintautas Miliauskas's avatar Gintautas Miliauskas
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Harmless stuff: fixed several typos and removed trailing whitespace in a few 

places.
parent 1533315e
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Showing with 52 additions and 52 deletions
trunk/src/ZODB/Connection.py
View file @ 3ba0f536
......@@ -13,7 +13,7 @@
##############################################################################
"""Database connection support
$Id: Connection.py,v 1.145 2004/04/08 18:12:25 tim_one Exp $"""
$Id: Connection.py,v 1.146 2004/04/09 11:11:32 gintautasm Exp $"""
import logging
import sys
......@@ -60,7 +60,7 @@ class Connection(ExportImport, object):
Connection that loaded them. When a transaction commits, it uses
the Connection to store modified objects.
The typical use of ZODB is for each thread to have its own
Typical use of ZODB is for each thread to have its own
Connection and that no thread should have more than one Connection
to the same database. A thread is associated with a Connection by
loading objects from that Connection. Objects loaded by one
......@@ -168,7 +168,7 @@ class Connection(ExportImport, object):
# the lock must be held when reading _invalidated.
# XXX It sucks that we have to hold the lock to read
# _invalidated. Normally, _invalidated is written by call
# _invalidated. Normally, _invalidated is written by calling
# dict.update, which will execute atomically by virtue of the
# GIL. But some storage might generate oids where hash or
# compare invokes Python code. In that case, the GIL can't
......@@ -200,8 +200,8 @@ class Connection(ExportImport, object):
def setLocalTransaction(self):
"""Use a transaction bound to the connection rather than the thread"""
# XXX mark this method as depcrecated? note that it's
# signature changed?
# XXX mark this method as deprecated?
# Note that its signature has changed.
if self._txn_mgr is transaction:
self._txn_mgr = transaction.TransactionManager()
......@@ -277,9 +277,9 @@ class Connection(ExportImport, object):
"""Add a new object 'obj' to the database and assign it an oid.
A persistent object is normally added to the database and
assigned an oid when it becomes reachable an object already in
assigned an oid when it becomes reachable to an object already in
the database. In some cases, it is useful to create a new
object and uses its oid (_p_oid) in a single transaction.
object and use its oid (_p_oid) in a single transaction.
This method assigns a new oid regardless of whether the object
is reachable.
......@@ -357,7 +357,7 @@ class Connection(ExportImport, object):
self._db.classFactory)
def _resetCache(self):
"""Creates a new cache, discarding the old.
"""Creates a new cache, discarding the old one.
See the docstring for the resetCaches() function.
"""
......@@ -509,9 +509,9 @@ class Connection(ExportImport, object):
serial = getattr(obj, "_p_serial", z64)
if serial == z64:
# new object
# obj is a new object
self._creating.append(oid)
# If this object was added, it is now in _creating, so can
# Because obj was added, it is now in _creating, so it can
# be removed from _added.
self._added.pop(oid, None)
else:
......@@ -528,7 +528,7 @@ class Connection(ExportImport, object):
try:
self._cache[oid] = obj
except:
# Dang, I bet its wrapped:
# Dang, I bet it's wrapped:
if hasattr(obj, 'aq_base'):
self._cache[oid] = obj.aq_base
else:
......@@ -538,7 +538,7 @@ class Connection(ExportImport, object):
self._added_during_commit = None
def commit_sub(self, t):
"""Commit all work done in all subtransactions for this transaction"""
"""Commit all work done in all subtransactions for this transaction."""
if self._tmp is None:
return
src = self._storage
......@@ -559,7 +559,7 @@ class Connection(ExportImport, object):
self._handle_serial(s, oid, change=False)
def abort_sub(self, t):
"""Abort work done in all subtransactions for this transaction"""
"""Abort work done in all subtransactions for this transaction."""
if self._tmp is None:
return
src = self._storage
......@@ -708,6 +708,7 @@ class Connection(ExportImport, object):
# There is a harmless data race with self._invalidated. A
# dict update could go on in another thread, but we don't care
# because we have to check again after the load anyway.
if (obj._p_oid in self._invalidated
and not myhasattr(obj, "_p_independent")):
# If the object has _p_independent(), we will handle it below.
......@@ -787,7 +788,7 @@ class Connection(ExportImport, object):
def oldstate(self, obj, tid):
"""Return copy of obj that was written by tid.
XXX The returned object does not have the typical metdata
XXX The returned object does not have the typical metadata
(_p_jar, _p_oid, _p_serial) set. I'm not sure how references
to other peristent objects are handled.
......@@ -899,12 +900,12 @@ class Connection(ExportImport, object):
del obj._p_changed # transition from changed to ghost
else:
if change:
obj._p_changed = 0 # trans. from changed to uptodate
obj._p_changed = 0 # transition from changed to up-to-date
obj._p_serial = serial
def tpc_finish(self, transaction):
# It's important that the storage call the function we pass
# while it still has it's lock. We don't want another thread
# It's important that the storage calls the function we pass
# while it still has its lock. We don't want another thread
# to be able to read any updated data until we've had a chance
# to send an invalidation message to all of the other
# connections!
......@@ -939,10 +940,10 @@ class Connection(ExportImport, object):
def setDebugInfo(self, *args):
self._debug_info = self._debug_info + args
def getTransferCounts(self, clear=0):
def getTransferCounts(self, clear=False):
"""Returns the number of objects loaded and stored.
Set the clear argument to reset the counters.
If clear is True, reset the counters.
"""
res = self._load_count, self._store_count
if clear:
......
trunk/src/ZODB/serialize.py
View file @ 3ba0f536
......@@ -154,7 +154,7 @@ class BaseObjectWriter:
>>> bob._p_jar is jar
True
If the object already has a persistent id, it is not changed:
If the object already has a persistent id, the id is not changed:
>>> bob._p_oid = 24
>>> oid, cls = writer.persistent_id(bob)
......@@ -173,7 +173,7 @@ class BaseObjectWriter:
"""foreign database connection
Constructor arguments used by __new__(), as returned by
__getnewargs__(), can affect memory allocation, but also may
__getnewargs__(), can affect memory allocation, but may also
change over the life of the object. This makes it useless to
cache even the object's class.
......@@ -210,7 +210,7 @@ class BaseObjectWriter:
# Not persistent, pickle normally
return None
# Any persistent object mosy have an oid:
# Any persistent object must have an oid:
try:
oid = obj._p_oid
except AttributeError:
......@@ -237,10 +237,10 @@ class BaseObjectWriter:
if oid is None:
# Here we are causing the object to be saved in
# the database. One could argue that we shouldn't
# do this, because a wekref should not cause an object
# do this, because a weakref should not cause an object
# to be added. We'll be optimistic, though, and
# assume that the object will be added eventually.
oid = self._jar.new_oid()
obj._p_jar = self._jar
obj._p_oid = oid
......@@ -275,7 +275,7 @@ class BaseObjectWriter:
def serialize(self, obj):
# We don't use __class__ here, because obj could be a persistent proxy.
# We don't want to be folled by proxies.
# We don't want to be fooled by proxies.
klass = type(obj)
newargs = getattr(obj, "__getnewargs__", None)
......@@ -375,7 +375,7 @@ class BaseObjectReader:
if args is None:
args = ()
else:
# Definately new style direct class reference
# Definitely new style direct class reference
args = ()
if issubclass(klass, Broken):
......@@ -527,7 +527,7 @@ def referencesf(p, rootl=None):
# tuples, so that we wrap oids that are lists or tuples in
# tuples.
#
# - oids may *not* be false. I'm not sure why.
# - oids may *not* be False. I'm not sure why.
out = []
for v in rootl:
......
trunk/src/ZODB/tests/testConnection.py
View file @ 3ba0f536
......@@ -50,7 +50,7 @@ class ConnectionDotAdd(unittest.TestCase):
self.datamgr.add(obj)
self.assertEqual(obj._p_oid, oid)
# Cannot add an object from a diffrerent connection.
# Cannot add an object from a different connection.
obj2 = StubObject()
obj2._p_jar = object()
self.assertRaises(InvalidObjectReference, self.datamgr.add, obj2)
......@@ -71,10 +71,11 @@ class ConnectionDotAdd(unittest.TestCase):
self.datamgr.add(obj)
oid = obj._p_oid
# This case simulates when an error occurred committing some other
# object, so tpc_abort is called, clearing everything.
# Simulate an error while committing some other object.
self.datamgr.tpc_begin(self.transaction)
# Let's pretend something bad happens here.
# Call tpc_abort, clearing everything.
self.datamgr.tpc_abort(self.transaction)
self.assert_(obj._p_oid is None)
self.assert_(obj._p_jar is None)
......@@ -114,7 +115,7 @@ class ConnectionDotAdd(unittest.TestCase):
def checkModifyOnGetstate(self):
subobj = StubObject()
obj = ModifyOnGetStateObject(subobj)
self.datamgr.tpc_begin(self.transaction)
self.datamgr.commit(obj, self.transaction)
self.datamgr.tpc_finish(self.transaction)
......@@ -135,7 +136,7 @@ class ConnectionDotAdd(unittest.TestCase):
class UserMethodTests(unittest.TestCase):
# XXX add isn't tested here, because there are a bunch of traditional
# XXX add isn't tested here, because there are is bunch of traditional
# unit tests for it.
# XXX the version tests would require a storage that supports versions
......@@ -147,7 +148,7 @@ class UserMethodTests(unittest.TestCase):
The root() method is simple, and the tests are pretty minimal.
Ensure that a new database has a root and that it is a
PersistentMapping.
>>> db = databaseFromString("<zodb>\n<mappingstorage/>\n</zodb>")
>>> cn = db.open()
>>> root = cn.root()
......@@ -173,12 +174,12 @@ class UserMethodTests(unittest.TestCase):
'\x00\x00\x00\x00\x00\x00\x00\x00'
The object is a ghost.
>>> obj._p_state
-1
And multiple calls with the same oid, return the same object.
>>> obj2 = cn.get(p64(0))
>>> obj is obj2
True
......@@ -187,7 +188,7 @@ class UserMethodTests(unittest.TestCase):
object will be returned. The cache doesn't keep unreferenced
ghosts alive. (The next object returned my still have the
same id, because Python may re-use the same memory.)
>>> del obj, obj2
>>> cn._cache.get(p64(0), None)
......@@ -217,8 +218,8 @@ class UserMethodTests(unittest.TestCase):
r"""doctest of close() method
This is a minimal test, because most of the interesting
effects on closing a connection involved its interaction the
database and transaction.
effects on closing a connection involve its interaction with the
database and the transaction.
>>> db = databaseFromString("<zodb>\n<mappingstorage/>\n</zodb>")
>>> cn = db.open()
......@@ -228,9 +229,8 @@ class UserMethodTests(unittest.TestCase):
>>> cn.close()
>>> cn.close()
It's not possible to load or store objects once the storage is
closed.
It's not possible to load or store objects once the storage is closed.
>>> cn.get(p64(0))
Traceback (most recent call last):
...
......@@ -270,7 +270,7 @@ class UserMethodTests(unittest.TestCase):
The implementation keeps a list of callbacks that is reset
to a class variable (which is bound to None) after the connection
is closed.
>>> cn._Connection__onCloseCallbacks
"""
......@@ -299,7 +299,7 @@ class UserMethodTests(unittest.TestCase):
RuntimeError: The database connection is closed
An expedient way to create a read-only storage:
>>> db._storage._is_read_only = True
>>> cn = db.open()
>>> cn.isReadOnly()
......@@ -348,9 +348,9 @@ class UserMethodTests(unittest.TestCase):
warnings, one from the Connection and one from the
cPickleCache. Maybe we should drop the cPickleCache warning,
but it's there for now. When passed an argument, it acts like
cacheGC(). When t isn't passed an argument it acts like
cacheGC(). When it isn't passed an argument it acts like
cacheMinimize().
>>> r._p_activate()
>>> cn.cacheFullSweep(12)
>>> r._p_state
......@@ -368,11 +368,10 @@ class UserMethodTests(unittest.TestCase):
>>> category.__name__
'DeprecationWarning'
We have to uninstall the hook so that other warnings don't get
lost.
We have to uninstall the hook so that other warnings don't get lost.
>>> hook.uninstall()
"""
class InvalidationTests(unittest.TestCase):
......@@ -408,7 +407,7 @@ class InvalidationTests(unittest.TestCase):
True
>>> p2._p_oid in cn._invalidated
False
>>> cn.invalidate(p64(10), {p2._p_oid: 1, p64(76): 1})
>>> cn._txn_time
'\x00\x00\x00\x00\x00\x00\x00\x01'
......@@ -419,7 +418,7 @@ class InvalidationTests(unittest.TestCase):
Calling invalidate() doesn't affect the object state until
a transaction boundary.
>>> p1._p_state
0
>>> p2._p_state
......@@ -439,7 +438,7 @@ class InvalidationTests(unittest.TestCase):
0
>>> cn._invalidated
{}
"""
# ---- stubs
......
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