Larry wrote: "Then I would consider how best to fix the DataStore
model so that it is more reliable and supports read/write."

I'm in favor of refactoring the DataSource class to support the H2
database as well.

SS

On Wed, Apr 22, 2009 at 6:20 PM, Sunburned Surveyor
<sunburned.surve...@gmail.com> wrote:
> 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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>>> >
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>>
>> --
>> http://amusingprogrammer.blogspot.com/
>>
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