[udig-devel] refresh a catalog item

Jesse Eichar jeichar at refractions.net
Mon Jul 23 13:18:09 PDT 2007


Hmmm.  I'm afraid I'm not sure what is happening.  There is some  
caching of labels in the CatalogUIPlugin I think but I didn't think  
that would affect the structure of the tree.

Jesse
On Jul 23, 2007, at 9:34 AM, Andrea Antonello wrote:

> Let me add something more: I debugged down the line and before  
> returning
>  from the most top members(monitor) method (i.e. the IService method),
> the array contains all the needed resources, which means they are  
> read.
> The problem is, they are then not visualized. It "remebers" the  
> previous
> tree. How can that be?
>
> Andrea
>
>
>
> Andrea Antonello probaly wrote:
>> Yes, I also think the ResetService could work, I just have to  
>> struggle
>> with the fact that when I reload (i.e. remove and redrag into  
>> catalog)
>> the JGrass service, it doesn't call the members method of the nested
>> resources. Instead when udig restarts it goes indeep again. Is there
>> some memory somewhere or is it my fault?
>>
>> Andrea
>>
>>
>> Jesse Eichar probaly wrote:
>>> Hi,
>>>
>>> THe ServiceFactory.acquire() method creates a new instance of the
>>> service but does not affect the catalog.  It is just a factory.  You
>>> could probably do a find on the catalog for the service you want to
>>> replace.  Delete that service from the catalog and then put the new
>>> instance in the catalog.  I have used the ResetService and can  
>>> verify
>>> that it does do something.  I think it even works :P.
>>>
>>> Jesse
>>>
>>>
>>> On Jul 23, 2007, at 8:30 AM, Andrea Antonello wrote:
>>>
>>>> Finally I got time to get into this and...it doesn't work.
>>>> I'm trying to understand if it all depends on a strange  
>>>> behaviour that I
>>>> notice. Perhaps someone can explaint that:
>>>> I open udig drag a grass location into the catalog and it reads
>>>> everything properly. So for example I have a location with two  
>>>> mapsets
>>>> and nested inside the maps. Now I create a map in one mapset. I  
>>>> remove
>>>> the service from the catalog and then drag the location into the  
>>>> catalog
>>>> again. i thought it would read the whole thin g again, but it  
>>>> remembers
>>>> something and the new map is not seen.
>>>> If I reastart udig, the map appears. So what does it remember  
>>>> and where?
>>>>
>>>>
>>>> For your info the part:
>>>>         IServiceFactory locator = CatalogPlugin.getDefault()
>>>>                 .getServiceFactory();
>>>>         List<IService> rereadService = locator.acquire(ID,
>>>> connectionParams);
>>>>
>>>> in fact creates a proper service, but without internal members.  
>>>> But by
>>>> triggering manually the members method on the members fills  
>>>> everything
>>>> down the tree, so that should work. (in fact it doesn't since it
>>>> remembers the old tree)
>>>>
>>>> Any hint?
>>>>
>>>> Andrea
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> Jesse Eichar probaly wrote:
>>>>> Trying to remember.  Take a look at the ResetService class.  It
>>>>> essentially kicks the service so that the tree will be loaded  
>>>>> again.
>>>>> Remember that there is a chance that there is a bug with  
>>>>> regards to
>>>>> multi-level services since you are the trail-blazer here.
>>>>>
>>>>> Jesse
>>>>> On Jul 15, 2007, at 11:26 AM, Andrea Antonello wrote:
>>>>>
>>>>>> I need to add a created map to the catalog. That is easy with  
>>>>>> shapefile
>>>>>> or so, but I can't figure out how to do that in a multilevel  
>>>>>> service,
>>>>>> i.e. I want to add an entry to the JGrass location service,  
>>>>>> which is
>>>>>> something similar in the level management to the WMS service.
>>>>>> Do I have to re-read it and if yes how do I trigger the re- 
>>>>>> read of a
>>>>>> service? Is there a more performant way?
>>>>>>
>>>>>> Ciao
>>>>>> Andrea
>>>>>> _______________________________________________
>>>>>> User-friendly Desktop Internet GIS (uDig)
>>>>>> http://udig.refractions.net
>>>>>> http://lists.refractions.net/mailman/listinfo/udig-devel
>>>>>
>>>
>> _______________________________________________
>> User-friendly Desktop Internet GIS (uDig)
>> http://udig.refractions.net
>> http://lists.refractions.net/mailman/listinfo/udig-devel
>>



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