FW: [PEAR-DEV] MDB 2.0

From: Date: Fri, 27 Jun 2003 15:08:12 +0000
Subject: FW: [PEAR-DEV] MDB 2.0
Groups: php.pear.general 
Request: Send a blank email to pear-general+get-6294@lists.php.net to get a copy of this message
Forgot to include you guys. > -----Original Message----- > From: Lukas Smith [mailto:smith@backendmedia.com] > Sent: Friday, June 27, 2003 5:04 PM > To: 'PEAR development'; dev@binarycloud.tigris.org; metabase- > dev@yahoogroups.com > Subject: [PEAR-DEV] MDB 2.0 > > Hi, > > as some of you may have noticed I have started to commit to a new branch > of MDB which will become MDB 2.0. > > The main goals of MDB 2.0 are as follows: > 1) improve the API > 2) improve performance for users that don't need all the features of MDB > 3) make writing drivers easier > > Especially for 1) I welcome user comments. > > Just as a general heads up here are some comments: > - the core class will be much much slimmer than before as the following > things will be removed from the core class: datatype conversion, > management methods, high level methods (like get*). This will make the > class easier to maintain and understand for users and developers. It > will also improve performance and memory consumption for users that > don't need all those features. In turn it will do the reverse for users > that need all the features almost in every instance call (like myself). > > - the cell based fetching methods will be removed (unless they are > needed for emulating the bulk fetching methods) > > - I will also look at some of the issues that users have been having > with the fetch* methods for example > > - I will try to simplify the LOB support (I think I didn't do a very > good job merging in this feature from Metabase) > > - the management methods will remain accessable through their own class > (as would actually be possible today already), except for the method > used for reverse engineering xml schema files (those method will be > moved to the new manager package) > > - the datatype conversion will be moved to a new class, the methods will > still be accessible through the core class (for example via > MDB_Common::getValue('text', $value)) > > - the high level methods will be moved to a separate class (any ideas > for a name .. MDB_Highlevel sounds pretty crappy) > > - all the new classes will be loadable (but not on demand, except for > the datatype conversion class) through the core class, so it will simply > result in a bit more verbose calls ($mdb->createSequence() will become > $mdb->management->createSequence()) > > - the manager class will be removed from the package and will become a > new standalone class. I have mailed a separate proposal about this class > which apparently will be called DB_Schema > > - the metabase wrapper will now emulate the direct object API not the > functional interface. However I am not sure if I will move the cell > based fetching methods here, so maybe the wrapper will not be feature > complete (obviously someone else could add them). I am not quite sure > what this means for MetaStorage compatibility > > I am sure I forgot things. But there is still a bit of time until MDB > 2.0 will be released. I think 1-2 months is a good estimate. The result > of the LinutxTag DB extension maintainer meeting might affect this > schedule. > > Regards, > Lukas Smith > smith@backendmedia.com > _______________________________ > BackendMedia > www.backendmedia.com > berlin@backendmedia.com > > Linn Zwoch Smith GbR > Pariser Str. 44 > D-10707 Berlin > > Tel +49 30 83 22 50 00 > Fax +49 30 83 22 50 07 > > > > -- > PEAR Development Mailing List (http://pear.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php

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