Jody, the code i appended on Jan,23rd shows only the basic ideas but was not
compileable against version 2.5.2 of geotools! Sorry for that, hopefully I
didn't wasted your time!<?xml:namespace prefix = o ns =
"urn:schemas-microsoft-com:office:office" /><o:p></o:p>
Currently i try to get the code adapted but got some problems with generics.
<o:p></o:p>
The FeatureCollection has generic types (FeatureCollection <? extends
FeatureType, ? extends Feature>) but the AbstractDataStore does not work with
generics (e.g. getSchema() and getFeatureReader() etc.). Are there any plans to
harmonize this? Will getools support only SimpleFeatuteTypes in the
future?<o:p></o:p>
I guess the MemoryFeatureCollection is not the right one I should use. I
figured out that the CollectionDataStore in combination with the
DefaultFeatureCollection fits much more. But with the same problems i posted
before (Empty Collection at time of adding the FeatureSource to the
MapContext.<o:p></o:p>
I think we should extend the Constructor. The collection could be empty and the
DataStore is well defined.<o:p></o:p>
/**
* Builds a data store wrapper on top of a feature collection
*
* @param collection
*/
public CollectionDataStore(SimpleFeatureType featureType,
FeatureCollection<SimpleFeatureType, SimpleFeature> collection) {
this.collection = collection;
this.featureType = featureType;
collection.addListener(new FeatureCollectionListener());
}<o:p></o:p>
The FeatureCollections implementations are different in behavior for the
getBounds method. In on a referenced envelope is created and with a Iterator
the bound got recalclated. In an other the ReferenceEnvelope was created using
the featureType CRS information an some return null. I would prefere later.
Collections should return the same expected result. <o:p></o:p>
- If the FeatureCollection is not empty the getBound should iterate over all
Features<o:p></o:p>
- If there is an empty collection it should return the CRS relevant Envelope.
<o:p></o:p>
- If CRS information is not available (null) a ReferencedEnvelope should
returned <o:p></o:p>
- but getBounds returns never null.<o:p></o:p>
What do you think?<o:p></o:p>
Frank<o:p></o:p>
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