Examples of FeatureWriter

org.geotools.data.FeatureWriter

Provides the ability to write Features information.

Capabilities:

Similar API to FeatureReader
After aquiring a feature using next() you may call remove() or after modification write(). If you do not call one of these two methods before calling hasNext(), or next() for that matter, the feature will be left unmodified.
This API allows modification, and Filter based modification to be written. Please see AbstractDataStore for examples of implementing common opperations using this API.
In order to add new Features, FeatureWriters capable of accepting new content allow next() to be called when hasNext() is false to allow new feature creation. These changes

One thing that is really nice about the approach to adding content is that the generation of FID is not left in the users control.

@author Ian Schneider @author Jody Garnett, Refractions Research @source $URL$ @version $Id$

        tb.add( "g", Point.class );
        tb.add( "name", String.class );
        
        ds.createSchema( tb.buildFeatureType() );
        
        FeatureWriter fw = ds.getFeatureWriterAppend( "widgets", Transaction.AUTO_COMMIT );
        fw.hasNext();
        SimpleFeature sf = (SimpleFeature) fw.next();
        sf.setAttribute("g", new GeometryFactory().createPoint( new Coordinate(1,1)));
        sf.setAttribute( "name", "one");
        fw.write();
        
        fw.hasNext();
        sf = (SimpleFeature) fw.next();
        sf.setAttribute("g", new GeometryFactory().createPoint( new Coordinate(2,2)));
        sf.setAttribute( "name", "two");
        fw.write();
        
        fw.close();
        ds.dispose();
    }

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Examples of FeatureWriter

Examples of org.geotools.data.FeatureWriter