Commit ce8c4f74 authored by Tim Peters's avatar Tim Peters

Internal 3.5a1 release.

parent d8a161cb
What's new in ZODB3 3.5a0? What's new in ZODB3 3.5a2?
========================== ==========================
Release date: DD-MMM-YYYY Release date: DD-MMM-2005
Following is combined news from "internal releases" (to support ongoing
Zope3 development). These are the dates of the internal releases:
- 3.5a1 10-Jun-2005
Multi-database
--------------
- (3.5a1) Preliminary support for persistent cross-database references has
been added. See ``ZODB/cross-database-references.txt`` for an
introduction.
What's new in ZODB3 3.4? What's new in ZODB3 3.4?
======================== ========================
Release date: MM-DDD-2005 Release date: 09-Jun-2005
Following is combined news from the "internal releases" (to support Following is combined news from the "internal releases" (to support
ongoing Zope 2.8 and Zope3 development) since the last public ZODB 3.4 ongoing Zope 2.8 and Zope3 development) since the last public ZODB 3.4
......
...@@ -35,8 +35,8 @@ The Zope 2.8 release, and Zope3 releases, should be compatible with this ...@@ -35,8 +35,8 @@ The Zope 2.8 release, and Zope3 releases, should be compatible with this
version of ZODB. Note that Zope 2.7 and higher includes ZEO, so this package version of ZODB. Note that Zope 2.7 and higher includes ZEO, so this package
should only be needed to run a ZEO server. should only be needed to run a ZEO server.
ZEO servers and clients are wholly compatible among 3.3, 3.3.1 and 3.4: a ZEO ZEO servers and clients are wholly compatible among 3.3, 3.3.1, 3.4 and 3.5:
client from any of those versions can talk with a ZEO server from any. a ZEO client from any of those versions can talk with a ZEO server from any.
Trying to mix ZEO clients and servers from 3.3 or later from ZODB releases Trying to mix ZEO clients and servers from 3.3 or later from ZODB releases
before 3.3 is much harder. ZODB 3.3 introduced multiversion concurrency before 3.3 is much harder. ZODB 3.3 introduced multiversion concurrency
......
\documentclass{howto} \documentclass{howto}
\title{ZODB/ZEO Programming Guide} \title{ZODB/ZEO Programming Guide}
\release{3.5a0} \release{3.5.0a1}
\date{\today} \date{\today}
\author{A.M.\ Kuchling} \author{A.M.\ Kuchling}
......
No preview for this file type
...@@ -264,7 +264,7 @@ class MyDistribution(Distribution): ...@@ -264,7 +264,7 @@ class MyDistribution(Distribution):
doclines = __doc__.split("\n") doclines = __doc__.split("\n")
setup(name="ZODB3", setup(name="ZODB3",
version="3.5a0", version="3.5.0a1",
maintainer="Zope Corporation", maintainer="Zope Corporation",
maintainer_email="zodb-dev@zope.org", maintainer_email="zodb-dev@zope.org",
url = "http://www.zope.org/Wikis/ZODB", url = "http://www.zope.org/Wikis/ZODB",
......
...@@ -22,4 +22,4 @@ ZEO is now part of ZODB; ZODB's home on the web is ...@@ -22,4 +22,4 @@ ZEO is now part of ZODB; ZODB's home on the web is
""" """
# The next line must use double quotes, so release.py recognizes it. # The next line must use double quotes, so release.py recognizes it.
version = "3.5a0" version = "3.5.0a1"
...@@ -13,7 +13,7 @@ ...@@ -13,7 +13,7 @@
############################################################################## ##############################################################################
# The next line must use double quotes, so release.py recognizes it. # The next line must use double quotes, so release.py recognizes it.
__version__ = "3.5a0" __version__ = "3.5.0a1"
import sys import sys
import __builtin__ import __builtin__
......
...@@ -2,7 +2,7 @@ Cross-Database References ...@@ -2,7 +2,7 @@ Cross-Database References
========================= =========================
Persistent references to objects in different databases within a Persistent references to objects in different databases within a
multi-database are allowed. multi-database are allowed.
Lets set up a multi-database with 2 databases: Lets set up a multi-database with 2 databases:
...@@ -54,26 +54,26 @@ It isn't valid to create references outside a multi database: ...@@ -54,26 +54,26 @@ It isn't valid to create references outside a multi database:
>>> tm.commit() # doctest: +NORMALIZE_WHITESPACE >>> tm.commit() # doctest: +NORMALIZE_WHITESPACE
Traceback (most recent call last): Traceback (most recent call last):
... ...
InvalidObjectReference: InvalidObjectReference:
Attempt to store an object from a foreign database connection Attempt to store an object from a foreign database connection
NOTE NOTE
---- ----
This implementation is incomplete. It allows creatting and using This implementation is incomplete. It allows creating and using
cross-database references, however, there are a number of facilities cross-database references, however, there are a number of facilities
missing: missing:
cross-database garbage collection cross-database garbage collection
Garbage collection is done on a database by database basis. Garbage collection is done on a database by database basis.
If an object on a database only has references to it from other If an object on a database only has references to it from other
databases, then the object will be garbage collected when it's databases, then the object will be garbage collected when its
database is packed. The cross-database references to it will be database is packed. The cross-database references to it will be
broken. broken.
cross-database undo cross-database undo
Undo is only applied to a single database. Fixing this for Undo is only applied to a single database. Fixing this for
mutliple databases is going to be extremely difficult. Undo multiple databases is going to be extremely difficult. Undo
currently poses consistency problems, so it is not (or should not currently poses consistency problems, so it is not (or should not
be) widely used. be) widely used.
......
############################################################################## ##############################################################################
# #
# Copyright (c) 2004 Zope Corporation and Contributors. # Copyright (c) 2005 Zope Corporation and Contributors.
# All Rights Reserved. # All Rights Reserved.
# #
# This software is subject to the provisions of the Zope Public License, # This software is subject to the provisions of the Zope Public License,
......
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