Examples of org.opengis.feature.simple.SimpleFeatureType

org.opengis.feature.simple.SimpleFeatureType
The type of a SimpleFeature.
The definition of a "simple feature" can be summed up as the following:
- made up of only non-complex attributes, no associations
- attributes are of multiplicity 1
- attributes are ordered
- attribute names are unqualified (namespaceURI == null)
Attribute Indexing
The attributes which compose a simple feature type are ordered. For this reason attributes are available via a simple index. Given the following type definition:
```
 <complexType name="mySimpleType"/> <sequence> <element name="foo" type="xs:string"/> <element name="bar" type="xs:integer"/> </sequence> </complexType> 
```
The attribute descriptor are addressable via index:
```
 SimpleFeatureType type = ...; AttributeDescriptor foo = type.getAttribute( 0 ); AttributeDescriptor bar-= type.getAttribute( 1 ); 
```
Attribute Multiplicity
With simple feature types, the multiplicity of attributes is always assumed to be 1, ie, getMinOccurs() == 1 and getMaxOccurs() == 1. A consequence of this is that attributes from a simple feature always line up 1 to 1 with the descriptors from the type:
```
 SimpleFeature feature = ...; SimpleFeatureType type = feature.getType(); type.getAttribute( 0 ).getDescriptor() == type.getAttribute( 0 ); type.getAttribute( 1 ).getDescriptor() == type.getAttribute( 1 ); 
```
Attribute Naming
The names of attributes in a simple feature type are never namespace qualified. For this reason there is no difference between accessing an attribute with {@link #getDescriptor(String)} and {@link #getDescriptor(Name)}.
@author Jody Garnett, Refractions Research @author Justin Deoliveira, The Open Planning Project @source $URL$

     */
    @Override
    protected Control createContents( Composite parent ) {
        Layer layer = getElement( Layer.class );
        
        SimpleFeatureType schema = layer.getSchema();
        // check if layer is polygon
        if (schema == null) {
            // disable!
        }
        Composite page = new Composite(parent, SWT.NONE);

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    }
    
    /* Grabs the layer and fills in the current page. */
    private void loadLayer() {
        Layer layer = getElement(Layer.class);
        SimpleFeatureType schema = layer != null ? layer.getSchema() : null;
        filter.getInput().setSchema(schema);
        
        boolean enabled = schema != null;
        filter.getControl().setEnabled(enabled);

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        }
        
        ShapefileDataStoreFactory dsfac = new ShapefileDataStoreFactory();
        File tmp = File.createTempFile(layers[0].getName() + "_" + layers[1].getName() + "_diff", ".shp"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
        DataStore ds = dsfac.createDataStore(tmp.toURL());
        final SimpleFeatureType newSchema = FeatureTypes.newFeatureType(
                fromLayer.getSchema().getAttributeDescriptors().toArray(
                        new AttributeDescriptor[0]), "diff"); //$NON-NLS-1$
        ds.createSchema(newSchema);
        
        final FeatureSource<SimpleFeatureType, SimpleFeature> fromSource = fromLayer.getResource(FeatureSource.class, monitor);

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     */
    @Override
    protected Control createContents( Composite parent ) {
        layer = (Layer) getElement();


        SimpleFeatureType schema = layer.getSchema();


        // check if layer is polygon
        if (schema != null) {
            GeometryDescriptor geomDescriptor = schema.getGeometryDescriptor();
            if (geomDescriptor != null) {
                Class< ? extends Geometry> binding = (Class< ? extends Geometry>) geomDescriptor
                        .getType().getBinding();
                switch( Geometries.getForBinding(binding) ) {
                case MULTIPOLYGON:

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          Intersects intersectsFilter;


      final CoordinateReferenceSystem layerCrs = LayerUtil.getCrs(selectedLayer);
      final Geometry splitLineGeom = reprojectSplitLine(splittingLine, layerCrs);


      SimpleFeatureType schema = selectedLayer.getSchema();
      String geomName = schema.getGeometryDescriptor().getLocalName();


      intersectsFilter = ff.intersects(ff.property(geomName), ff.literal(splitLineGeom));


      if (Filter.EXCLUDE.equals(filter)) {
              filter = intersectsFilter;

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    public PropertiesEditor( StyleLayer layer ) {
        this.layer = layer;
        loadWithAttributeTypes(layer);


        SimpleFeatureType schema = layer.getSchema();
        if (SLD.isPoint(schema)) {
            type = SLD.POINT;
        } else if (SLD.isLine(schema)) {
            type = SLD.LINE;
        } else if (SLD.isPolygon(schema)) {

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            return;
        }
    }


    private void loadWithAttributeTypes( StyleLayer selectedLayer ) {
        SimpleFeatureType featureType = selectedLayer.getSchema();
        if (featureType != null) {
            for( int i = 0; i < featureType.getAttributeCount(); i++ ) {
                AttributeDescriptor attributeType = featureType.getDescriptor(i);
                if (!(attributeType instanceof GeometryDescriptor)) { // don't include the geometry
                    if (isNumber(attributeType)) {
                        numericAttributeNames.add(attributeType.getName().getLocalPart());
                    } else if (isString(attributeType)) {
                        stringAttributeNames.add(attributeType.getName().getLocalPart());

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        if (featureList == null) {
            initLayer();
        }
        SimpleFeature currentFeature = featureList.get(index);


        SimpleFeatureType featureType = currentFeature.getFeatureType();
        List<AttributeDescriptor> attributeDescriptors = featureType.getAttributeDescriptors();
        List<String> attributeNames = new ArrayList<String>();
        for( AttributeDescriptor attributeDescriptor : attributeDescriptors ) {
            String name = attributeDescriptor.getLocalName();
            attributeNames.add(name);
        }

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            Job job = new Job("Prompt Hotlink Descriptor") { //$NON-NLS-1$
                @Override
                protected IStatus run(IProgressMonitor monitor) {
                    IGeoResource resource = (IGeoResource) getElement().getAdapter(
                            IGeoResource.class);
                    SimpleFeatureType schema = null;
                    if (resource.canResolve(SimpleFeatureType.class)) {
                        try {
                            schema = resource.resolve(SimpleFeatureType.class, monitor);
                        } catch (IOException e) {
                        }

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        text.setToolTipText( null );
        if( feature == null ) {
            text.setText( "" ); //$NON-NLS-1$
            return;
        }
        SimpleFeatureType type = feature.getFeatureType();
        
        StringBuffer buf = new StringBuffer();
        buf.append( feature.getID() );
        buf.append( ": (" ); //$NON-NLS-1$
        buf.append( type.getName().getNamespaceURI() );
        buf.append( ":" ); //$NON-NLS-1$
        buf.append( type.getName().getLocalPart() );
        
        for( int i=0; i<feature.getAttributeCount(); i++ ) {
            AttributeDescriptor attribute = type.getDescriptor( i );
            Object value = feature.getAttribute( i );
            buf.append( "\n" ); //$NON-NLS-1$
            buf.append( attribute.getName() );
            buf.append( " = " ); //$NON-NLS-1$
            if ( attribute instanceof GeometryDescriptor ) {

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Examples of org.opengis.feature.simple.SimpleFeatureType

Attribute Indexing

Attribute Multiplicity

Attribute Naming

Related Classes of org.opengis.feature.simple.SimpleFeatureType