Can I ask you to try things in a slightly different way ....
1. Create your map layer using the FeatureSource
2. Set the filter on the map layer
This way the renderer can make an efficient query by combining your filter with
any filters provided by the style; and it won't end up using
ContentFeatureCollection at all.
Jody
On 11/07/2010, at 9:12 PM, Fred Lehodey wrote:
> Dears,
>
> Using gt 2.6 with Postgis tables:
>
> filter = CQL.toFilter("status LIKE 'ON'");
> FeatureCollection<SimpleFeatureType, SimpleFeature> collection =
> featureSource.getFeatures( filter );
> //System.out.println(collection.size()); // ok, returns good result...
>
> But:
> map.addLayer(collection, null);
>
> Give:
> Exception in thread "AWT-EventQueue-0" java.lang.IllegalStateException: Must
> call hasNext before calling next
> at
> org.geotools.jdbc.JDBCFeatureReader.ensureNext(JDBCFeatureReader.java:238)
> at
> org.geotools.jdbc.JDBCFeatureReader.next(JDBCFeatureReader.java:252)
> at org.geotools.jdbc.JDBCFeatureReader.next(JDBCFeatureReader.java:82)
> at
> org.geotools.data.store.ContentFeatureCollection$WrappingIterator.next(ContentFeatureCollection.java:248)
> at
> org.geotools.data.collection.CollectionDataStore.<init>(CollectionDataStore.java:78)
> at org.geotools.data.DataUtilities.source(DataUtilities.java:930)
> at org.geotools.map.DefaultMapLayer.<init>(DefaultMapLayer.java:157)
> at
> org.geotools.map.DefaultMapContext.addLayer(DefaultMapContext.java:394)
> at FataMap.mapita.ReturnMapContext(mapita.java:480)
> ......
>
> Thanks for any hints..
>
> Fred.
>
>
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