Examples of org.opengis.feature.type.AttributeDescriptor

org.opengis.feature.type.AttributeDescriptor
Describes an instance of an Attribute.
An AttributeDescriptor is an extension of {@link PropertyDescriptor} whichdefines some additional information:
- A default value for an attribute
@author Jody Garnett, Refractions Research @author Justin Deoliveira, The Open Planning Project @source $URL$

        public void modify( Object element, String property, Object value ) {
            if( element==null || property==null || value==null ){
                return;
            }
            
            AttributeDescriptor editElement = (AttributeDescriptor) ((TreeItem) element).getData();
            SimpleFeatureType ft = (SimpleFeatureType) viewer.getInput();
            AttributeDescriptor newAttr = createNewAttributeType(editElement, property, value );
            
            if (newAttr == null)
                return;
            int index = 0;
            for( ; index < ft.getAttributeCount(); index++ ) {

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        ICellModifier cellModifier = testingGetViewer.getCellModifier();


        cellModifier.modify(testingGetViewer.getTree().getItem(0), "0", "the_new_name"); //$NON-NLS-1$//$NON-NLS-2$


        AttributeDescriptor attributeType = getAttributeDescriptor(0);
        assertEquals("the_new_name", attributeType.getName()); //$NON-NLS-1$


        for( int i = 0; i < FeatureTypeEditor.testingGetTYPES().size(); i++ ) {
            cellModifier.modify(testingGetViewer.getTree().getItem(0), "1", i); //$NON-NLS-1$.
            attributeType = getAttributeDescriptor(0);
            assertEquals(FeatureTypeEditor.testingGetTYPES().get(i).getType(), attributeType
                    .getType());
        }
    }

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  private AttributeDescriptor getAttributeDescriptor(int index) {
        TreeViewer testingGetViewer = editor.testingGetViewer();
    SimpleFeatureTypeBuilder newFeatureTypeBuilder = (SimpleFeatureTypeBuilder) testingGetViewer.getInput();
        SimpleFeatureType type = newFeatureTypeBuilder.buildFeatureType();
        AttributeDescriptor attributeType = type.getDescriptor(index);
    return attributeType;
  }

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    protected boolean doCheckState() {
        EditFeature feature = getFeature();
        if (feature == null)
            return true; // cannot check right now
        SimpleFeatureType schema = feature.getFeatureType();
        AttributeDescriptor descriptor = schema.getDescriptor(getAttributeName());
        if (descriptor == null) {
            // the schema changed on us! help ...
            return false;
        }
        String text = textField.getText();


        if (text == null || text.length() == 0) {
            return !descriptor.isNillable();
        }
        Object value = Converters.convert(text, descriptor.getType().getBinding());
        try {
            Types.validate(descriptor, value);
            if( isRequired() && value == null ){
                errorMessage = getAttributeName() + " is required";
                showErrorMessage(errorMessage);

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     * (non-Javadoc) Method declared on AttributeField.
     */
    protected void doLoadDefault() {
        if (textField != null) {
            SimpleFeatureType schema = getFeature().getFeatureType();
            AttributeDescriptor descriptor = schema.getDescriptor(getAttributeName());
            Object value = descriptor.getDefaultValue();


            String text = Converters.convert(value, String.class);
            textField.setText(text);
        }
        valueChanged();

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    /*
     * (non-Javadoc) Method declared on AttributeField.
     */
    protected void doStore() {
        SimpleFeatureType schema = getFeature().getFeatureType();
        AttributeDescriptor descriptor = schema.getDescriptor(getAttributeName());


        String text = textField.getText();
        Object value = Converters.convert(text, descriptor.getType().getBinding());
        getFeature().setAttribute(getAttributeName(), value);
    }

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        SimpleFeatureStore featureStore = resource.resolve(SimpleFeatureStore.class,
                new NullProgressMonitor());
        SimpleFeatureType schema = featureStore.getSchema();
        for (HotlinkDescriptor hotlinkDescriptor : list) {
            AttributeDescriptor attributeDescriptor = schema.getDescriptor(hotlinkDescriptor
                    .getAttributeName());
            assertNotNull("confirm attribute name matches", attributeDescriptor);
            assertTrue("Confirm String",
                    String.class.isAssignableFrom(attributeDescriptor.getType().getBinding()));


            assertNotNull(hotlinkDescriptor.getType() != null);
        }
        FilterFactory2 ff = CommonFactoryFinder.getFilterFactory2();
        SimpleFeatureCollection features = featureStore.getFeatures(ff.equals(ff.property("STATE"),

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     */
    protected void doLoadDefault() {
        if (list != null) {
            list.removeAll();
            SimpleFeatureType schema = getFeature().getFeatureType();
            AttributeDescriptor descriptor = schema.getDescriptor( getAttributeName());            
            Object value = descriptor.getDefaultValue();
            String text = Converters.convert(value, String.class );
            String[] array = parseString(text);
            for (int i = 0; i < array.length; i++) {
                list.add(array[i]);
            }

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            IStructuredSelection sel = (IStructuredSelection) selection;
            Object value = sel.getFirstElement();
            getFeature().setAttribute(getAttributeName(), value);
        } else {
            SimpleFeatureType schema = getFeature().getFeatureType();
            AttributeDescriptor descriptor = schema.getDescriptor( getAttributeName());  
            
            String text = viewer.getCombo().getText();
            Object value = Converters.convert( text, descriptor.getType().getBinding() );        
            getFeature().setAttribute( getAttributeName(), value );
        }


    }

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        if( feature == null ){
            return false; // cannot check right now
        }
        
        SimpleFeatureType schema = feature.getFeatureType();
        AttributeDescriptor descriptor = schema.getDescriptor( getAttributeName());
        if( descriptor == null ){
            return false; // schema changed on us?
        }
        Class<?> binding = descriptor.getType().getBinding();
        
        Object value = Converters.convert( date, binding );
        try {
            Types.validate( descriptor, value );
            return true;

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