Andreas,
I did a little reading in the old JUMP Developer Guide and the
OpenJUMP Javadoc. I was wondering if you could indicate to me which
method is used to obtain the FeatureCollection from the DataSource. Is
it the installCoordinateSystem method? I see that it returns a
FeatureCollection, but it seems like an odd name. I was expecting to
find a getFeatureCollection method or something similar.
I only ask because understanding this mechanism might help me answer
your question. I'm thinking OpenJUMP automatically loads DataSource
implementations just like it does plug-ins and cursor tools, so we may
have little control over the process in which a DataSource
implementation is used.
However, based on the information you provided so far, I believe that
your hook would be an acceptable solution. In addition, I think we
should pass a PlugInContext to the method that is executed by OpenJUMP
when obtaining features from the DataSource. This would allow, for
example, modification of the process used by a DataSource
implementation to create a FeatureCollection based on configuration
information stored in a blackboard, or even something like the number
of existing layers in the Task.
I'm thinking of a method like:
DataSource.getFeatureCollection(PlugInContext argContext)
{
// Stub
}
Of course, this may make absolutely no sense because I don't currently
have a deep understanding of how the DataSource code works.
The Sunburned Surveyor
On Tue, Jun 3, 2008 at 11:47 AM, Sunburned Surveyor
<[EMAIL PROTECTED]> wrote:
> Andreas,
>
> This is a good question, as I know I've gotten to some places in the
> code where I didn't have access to a PlugInContext, WorkbenchContext,
> or Blackboard.
>
> Let me look at the API today at lunch and I will respond with any comments.
>
> The Sunburned Surveyor
>
> On Tue, Jun 3, 2008 at 6:33 AM, Andreas Schmitz <[EMAIL PROTECTED]> wrote:
>> Hi,
>>
>> I'm wondering. If I've got a reader (JUMPReader) and I'm using it in a
>> DataSource, I often run into the problem of communicating data that was read
>> from the file to the application. Example:
>>
>> I'm parsing a MapInfo file and would like to store the parsed style
>> information
>> somewhere. From the reader/datasource I've no access to a global Map or the
>> generated layer. The only thing I have is the feature collection that is
>> created. To work around the problem, I wrote another plugin that reads and
>> applies the style information (since plugins have the PlugInContext
>> containing a
>> whole lot of information).
>>
>> Is there a way how I can communicate information from the reader to the rest
>> of
>> OpenJUMP? Maybe we could add a hook like
>>
>> public void postLayerCreation(Layer layer);
>>
>> to the JUMPReader interface?
>>
>> Best regards, Andreas
>> --
>> l a t / l o n GmbH
>> Aennchenstrasse 19 53177 Bonn, Germany
>> phone ++49 +228 18496-12 fax ++49 +228 1849629
>> http://www.lat-lon.de http://www.deegree.org
>>
>> -------------------------------------------------------
>> On June 17 is deegree day - Am 17. Juni ist deegree day
>> http://deegree.org/deegreeday
>>
>> -----BEGIN PGP SIGNATURE-----
>> Version: GnuPG v1.4.6 (GNU/Linux)
>>
>> iD8DBQFIRUgP737OVr+Ru7oRAtYjAJ9gqhAAuErZfs49NdHN+QZiiwjurgCeLQQE
>> qmPKsPsw0CNNRwZJCTqUE+U=
>> =zyq/
>> -----END PGP SIGNATURE-----
>>
>> -------------------------------------------------------------------------
>> This SF.net email is sponsored by: Microsoft
>> Defy all challenges. Microsoft(R) Visual Studio 2008.
>> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
>> _______________________________________________
>> Jump-pilot-devel mailing list
>> Jump-pilot-devel@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
>>
>>
>
-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
_______________________________________________
Jump-pilot-devel mailing list
Jump-pilot-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
