Stefan,

I haven't been able to test Larry's mod to the BasicFeature class or
his plug-in that uses this method. I'm afraid I've been putting in
some long hours at work, and haven't had time for any coding. :[

However, I am still employed as a land surveyor in the epicenter of
the housing crisis, so I am not going to complain about the work.

I'll see if I can bump this testing up on my to do list. For what it
is worth, I don't see any problems with the change and trust we can
move forward with Larry's mod. He's always done great work.

SS

On Wed, Apr 22, 2009 at 1:18 PM, Larry Becker <becker.la...@gmail.com> wrote:
> Thanks Stefan.  Also, as far as the best database base class to consider, we
> have DataSource which loads the layer into memory, and DataStore which
> doesn't but is read-only, and IMHO has problems with multiple layers due to
> threading.  I guess, if I was starting the task of implementing a new
> database driver, I would start with a DataSource driver.  Then once I had
> that working I would implement a DataStore driver.  Then I would consider
> how best to fix the DataStore model so that it is more reliable and supports
> read/write.  There is also the option of building a new database base class,
> but it would require a lot of core mods to integrate into File->Open, etc.
>
> Larry
>
> On Wed, Apr 22, 2009 at 2:51 PM, Stefan Steiniger <sst...@geo.uzh.ch> wrote:
>>
>> +1
>>
>> I was going to ask by the end of the week if Landon tested it and if we
>> can add the method. Basically I just trust you on that (having way more
>> developer experience than I have).
>>
>> sorry that databases are not my area if expertise - although I may know
>> some very few things about it
>>
>> stefan
>>
>> Larry Becker wrote:
>> > To maximize the use of Christopher's time this summer integrating H2
>> > spatial, we should ensure we have the database code infrastructure ready
>> > so he can focus on the actual problem.
>> >
>> > So the first step would be consideration of my proposed mod to
>> > BasicFeature to add an isModified() method.  I have been testing this in
>> > SkyJUMP and it seems to work as I expected.  If you recall, this basic
>> > support is needed to make it possible to know what database records to
>> > update, since (for large dbs) you can't realistically expect to write
>> > the whole database table each time you change a record.  Other methods
>> > are required to track deletions, and perhaps additions.
>> >
>> > As far as other database support enhancements go, I would like to hear
>> > from Martin.  This would seem to be something to which he might have
>> > given some thought.
>> >
>> > regards,
>> > Larry
>> >
>> > --
>> > http://amusingprogrammer.blogspot.com/
>> >
>> >
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