org.opengis.feature.type.PropertyDescriptor Java Exaples

Source File: DataSourceImpl.java From sldeditor with GNU General Public License v3.0

6 votes

/**
 * Populate field map for the data source.
 */
private void populateFieldMap() {
    if(dataSourceInfo != null)
    {
        geometryFieldName = dataSourceInfo.getGeometryFieldName();

        fieldNameMap.clear();
        fieldTypeMap.clear();

        logger.debug("Datasource fields:");
        int index = 0;
        Collection<PropertyDescriptor> descriptorList = dataSourceInfo.getPropertyDescriptorList();
        if(descriptorList != null)
        {
            for(PropertyDescriptor property : descriptorList)
            {
                logger.debug(String.format("    %-20s %s", property.getName(), property.getType().getBinding().getName()));
                fieldNameMap.put(index, property.getName());
                fieldTypeMap.put(index, property.getType().getBinding());
                index ++;
            }
        }
    }
}

Source File: DataSourceImpl.java From sldeditor with GNU General Public License v3.0

6 votes

/**
 * Gets the attributes.
 *
 * @param expectedDataType the expected data type
 * @return the attributes
 */
/* (non-Javadoc)
 * @see com.sldeditor.datasource.impl.DataSourceInterface#getAttributes(java.lang.Class)
 */
@Override
public List<String> getAttributes(Class<?> expectedDataType) {
    List<String> attributeNameList = new ArrayList<String>();

    Collection<PropertyDescriptor> descriptorList = getPropertyDescriptorList();

    if(descriptorList != null)
    {
        for(PropertyDescriptor property : descriptorList)
        {
            Class<?> bindingType = property.getType().getBinding();
            if(AllowedAttributeTypes.isAllowed(bindingType, expectedDataType))
            {
                attributeNameList.add(property.getName().toString());
            }
        }
    }
    return attributeNameList;
}

Source File: DataSourceInfo.java From sldeditor with GNU General Public License v3.0

6 votes

/** Populate field map for the data source. */
public void populateFieldMap() {
    fieldNameMap.clear();
    fieldTypeMap.clear();

    logger.debug("Datasource fields:");
    int index = 0;
    Collection<PropertyDescriptor> descriptorList = getPropertyDescriptorList();
    if (descriptorList != null) {
        for (PropertyDescriptor property : descriptorList) {
            if (property != null) {
                logger.debug(
                        String.format(
                                "    %-20s %s",
                                property.getName(), property.getType().getBinding().getName()));
                fieldNameMap.put(index, property.getName());
                fieldTypeMap.put(index, property.getType().getBinding());
            }
            index++;
        }
    }
}

Source File: DataSourceImpl.java From sldeditor with GNU General Public License v3.0

6 votes

/**
 * Gets the attributes.
 *
 * @param expectedDataType the expected data type
 * @return the attributes
 */
/*
 * (non-Javadoc)
 *
 * @see com.sldeditor.datasource.impl.DataSourceInterface#getAttributes(java.lang.Class)
 */
@Override
public List<String> getAttributes(Class<?> expectedDataType) {
    List<String> attributeNameList = new ArrayList<>();

    Collection<PropertyDescriptor> descriptorList = getPropertyDescriptorList();

    if (descriptorList != null) {
        for (PropertyDescriptor property : descriptorList) {
            Class<?> bindingType = property.getType().getBinding();
            if (AllowedAttributeTypes.isAllowed(bindingType, expectedDataType)) {
                attributeNameList.add(property.getName().toString());
            }
        }
    }
    return attributeNameList;
}

Source File: DataSourceImpl.java From sldeditor with GNU General Public License v3.0

6 votes

@Override
public List<String> getAllAttributes(boolean includeGeometry) {
    List<String> attributeNameList = new ArrayList<>();

    Collection<PropertyDescriptor> descriptorList = getPropertyDescriptorList();

    if (descriptorList != null) {
        for (PropertyDescriptor property : descriptorList) {
            boolean isGeometry = (property instanceof GeometryDescriptor);
            if ((isGeometry && includeGeometry) || !isGeometry) {
                attributeNameList.add(property.getName().toString());
            }
        }
    }
    return attributeNameList;
}

Source File: DataSourceInfo.java From sldeditor with GNU General Public License v3.0

5 votes

/**
 * Gets the property descriptor list.
 *
 * @return the property descriptor list
 */
public Collection<PropertyDescriptor> getPropertyDescriptorList() {
    if(schema != null)
    {
        return schema.getDescriptors();
    }
    return null;
}

Source File: ShapeFileViewer.java From gama with GNU General Public License v3.0

5 votes

@Override
public void saveAsCSV() {
	final List<String> attributes = new ArrayList<>();
	for (final PropertyDescriptor v : layer.getFeatureSource().getSchema().getDescriptors()) {
		attributes.add(v.getName().toString());
	}
	saveAsCSV(attributes, null, null);
}

Source File: DataSourceInfoTest.java From sldeditor with GNU General Public License v3.0

5 votes

/**
 * Test method for {@link
 * com.sldeditor.datasource.impl.DataSourceInfo#getPropertyDescriptorList()}.
 */
@SuppressWarnings({"unchecked", "rawtypes"})
@Test
public void testGetPropertyDescriptorList() {
    URL url =
            SLDEditorFile.class
                    .getClassLoader()
                    .getResource("point/sld/shp/sld_cookbook_point.shp");

    Map map = new HashMap();
    map.put("url", url);
    DataStore dataStore;
    try {
        dataStore = DataStoreFinder.getDataStore(map);

        DataSourceInfo dsInfo = new DataSourceInfo();

        String typeName = dataStore.getTypeNames()[0];
        dsInfo.setTypeName(typeName);
        SimpleFeatureSource source = dataStore.getFeatureSource(typeName);
        SimpleFeatureType schema = source.getSchema();

        assertNull(dsInfo.getPropertyDescriptorList());
        dsInfo.setSchema(schema);

        Collection<PropertyDescriptor> fieldList = dsInfo.getPropertyDescriptorList();

        assertTrue(fieldList.size() == 3);
    } catch (IOException e) {
        e.printStackTrace();
        fail(e.getMessage());
    }
}

Source File: DataSourceImplTest.java From sldeditor with GNU General Public License v3.0

5 votes

/** Test method for {@link com.sldeditor.datasource.impl.DataSourceImpl#connect()}. */
@Test
public void testConnectToInlineDataSource() {
    DataSourceImpl ds = new DataSourceImpl();

    DummyInlineSLDFile editorFile = new DummyInlineSLDFile();
    DummyDataSourceUpdate dataSourceUpdateListener = new DummyDataSourceUpdate();
    ds.addListener(dataSourceUpdateListener);

    CreateDataSourceInterface internalDataSource = new DummyCreateDataSource();
    CreateDataSourceInterface externalDataSource = new DummyCreateDataSource();
    CreateDataSourceInterface inlineDataSource = new CreateInlineDataSource();

    ds.setDataSourceCreation(internalDataSource, externalDataSource, inlineDataSource);
    ds.connect("typeName", editorFile, null);
    assertTrue(dataSourceUpdateListener.hasBeenCalled());

    assertEquals(GeometryTypeEnum.UNKNOWN, dataSourceUpdateListener.geometryType);
    assertFalse(dataSourceUpdateListener.isConnectedToDataSourceFlag);

    Collection<PropertyDescriptor> fieldList = ds.getPropertyDescriptorList();
    assertNull(fieldList);

    FeatureSource<SimpleFeatureType, SimpleFeature> exampleLayer = ds.getExampleFeatureSource();
    assertNull(exampleLayer);

    Map<UserLayer, FeatureSource<SimpleFeatureType, SimpleFeature>> userLayerMap =
            ds.getUserLayerFeatureSource();
    assertEquals(1, userLayerMap.size());

    assertFalse(dataSourceUpdateListener.hasBeenCalled());

    ds.updateUserLayers();
    assertTrue(dataSourceUpdateListener.hasBeenCalled());

    DataSourcePropertiesInterface dsi = ds.getDataConnectorProperties();
    assertNotNull(dsi);
}

Source File: DataSourceImpl.java From sldeditor with GNU General Public License v3.0

5 votes

/**
 * Gets the property descriptor list.
 *
 * @return the property descriptor list
 */
@Override
public Collection<PropertyDescriptor> getPropertyDescriptorList() {
    if (dataSourceInfo != null) {
        return dataSourceInfo.getPropertyDescriptorList();
    }
    return null;
}

Source File: DataSourceInfo.java From sldeditor with GNU General Public License v3.0

5 votes

/**
 * Gets the property descriptor list.
 *
 * @return the property descriptor list
 */
public Collection<PropertyDescriptor> getPropertyDescriptorList() {
    if (schema != null) {
        return schema.getDescriptors();
    } else {
        if (geometryType == GeometryTypeEnum.RASTER) {
            if (rasterPropertyDescriptorList == null) {
                rasterPropertyDescriptorList = new ArrayList<>();

                CoordinateReferenceSystem crs = null;
                boolean isIdentifiable = false;
                boolean isAbstract = false;
                List<Filter> restrictions = null;
                AttributeType superType = null;
                InternationalString description = null;
                GeometryType type =
                        featureTypeFactory.createGeometryType(
                                new NameImpl(RASTER_GEOMETRY_FIELD),
                                GridCoverage2D.class,
                                crs,
                                isIdentifiable,
                                isAbstract,
                                restrictions,
                                superType,
                                description);
                GeometryDescriptor descriptor =
                        featureTypeFactory.createGeometryDescriptor(
                                type, new NameImpl(RASTER_GEOMETRY_FIELD), 0, 1, false, null);

                rasterPropertyDescriptorList.add(descriptor);
            }

            return rasterPropertyDescriptorList;
        }
    }
    return null;
}

Source File: DataSourceImpl.java From sldeditor with GNU General Public License v3.0

5 votes

/**
 * Gets the property descriptor list.
 *
 * @return the property descriptor list
 */
@Override
public Collection<PropertyDescriptor> getPropertyDescriptorList() {
    if(dataSourceInfo != null)
    {
        return dataSourceInfo.getPropertyDescriptorList();
    }
    return null;
}

Source File: DataSourceFactoryTest.java From sldeditor with GNU General Public License v3.0

4 votes

@Override
public Collection<PropertyDescriptor> getPropertyDescriptorList() {
    return null;
}

Source File: DataSourceImplTest.java From sldeditor with GNU General Public License v3.0

4 votes

/**
 * Test method for {@link com.sldeditor.datasource.impl.DataSourceImpl#connect()}. Test method
 * for {@link
 * com.sldeditor.datasource.impl.DataSourceImpl#addListener(com.sldeditor.datasource.DataSourceUpdatedInterface)}.
 */
@Test
public void testConnectToInternalDataSource() {
    DataSourceImpl ds = new DataSourceImpl();

    DummyInternalSLDFile editorFile = new DummyInternalSLDFile();
    DummyDataSourceUpdate dataSourceUpdateListener = new DummyDataSourceUpdate();
    ds.addListener(dataSourceUpdateListener);
    ds.addListener(dataSourceUpdateListener);

    CreateDataSourceInterface internalDataSource = new CreateInternalDataSource();
    CreateDataSourceInterface externalDataSource = new DummyCreateDataSource();
    CreateDataSourceInterface inlineDataSource = new DummyCreateDataSource();

    ds.setDataSourceCreation(internalDataSource, externalDataSource, inlineDataSource);
    ds.connect("typeName", editorFile, null);

    assertEquals(GeometryTypeEnum.POINT, dataSourceUpdateListener.geometryType);
    assertFalse(dataSourceUpdateListener.isConnectedToDataSourceFlag);

    Collection<PropertyDescriptor> fieldList = ds.getPropertyDescriptorList();
    assertTrue(fieldList != null);

    List<String> actualFieldnameList = new ArrayList<String>();
    for (PropertyDescriptor field : fieldList) {
        if (!(field instanceof GeometryDescriptorImpl)) {
            actualFieldnameList.add(field.getName().getLocalPart());
        }
    }

    // Check fields extracted ok
    List<String> expectedFieldList = editorFile.getExpectedFieldList();
    assertTrue(expectedFieldList.size() == actualFieldnameList.size());

    // Not assuming fields are in the same order
    int count = 0;
    for (String fieldName : actualFieldnameList) {
        if (expectedFieldList.contains(fieldName)) {
            count++;
        }
    }
    assertTrue(expectedFieldList.size() == count);

    // Check for fields of certain types
    assertFalse(ds.getAttributes(Integer.class).isEmpty());
    assertFalse(ds.getAttributes(Double.class).isEmpty());

    assertEquals(2, ds.getAttributes(String.class).size());

    // Add new field
    DataSourceAttributeData dataSourceField =
            new DataSourceAttributeData("bearing", Double.class, null);
    ds.addField(dataSourceField);
    assertTrue(ds.getAttributes(Double.class).size() == 2);

    // Update field
    DataSourceAttributeList attributeData = new DataSourceAttributeList();
    ds.readAttributes(null);
    ds.readAttributes(attributeData);

    assertTrue(ds.getPropertyDescriptorList().size() == attributeData.getData().size());

    List<DataSourceAttributeData> attributeDataList = attributeData.getData();

    DataSourceAttributeData data = attributeDataList.remove(2);
    data.setType(Integer.class);
    attributeDataList.add(2, data);

    ds.updateFields(null);
    ds.updateFields(attributeData);
    List<String> actualAttributes = ds.getAttributes(Integer.class);
    assertTrue(actualAttributes.size() == 2);

    FeatureSource<SimpleFeatureType, SimpleFeature> features = ds.getFeatureSource();
    try {
        assertEquals(1, features.getFeatures().size());
    } catch (IOException e) {
        e.printStackTrace();
        fail(e.getMessage());
    }
    assertFalse(dataSourceUpdateListener.isConnectedToDataSourceFlag);

    ds.removeListener(dataSourceUpdateListener);
    assertFalse(dataSourceUpdateListener.isConnectedToDataSourceFlag);
}

Source File: DataSourceImplTest.java From sldeditor with GNU General Public License v3.0

4 votes

/** Test method for {@link com.sldeditor.datasource.impl.DataSourceImpl#connect()}. */
@Test
public void testConnectToExternalDataSource() {
    DataSourceImpl ds = new DataSourceImpl();

    DummyExternalSLDFile editorFile = new DummyExternalSLDFile();
    DummyDataSourceUpdate dataSourceUpdateListener = new DummyDataSourceUpdate();
    ds.addListener(dataSourceUpdateListener);

    CreateDataSourceInterface internalDataSource = new DummyCreateDataSource();
    CreateDataSourceInterface externalDataSource = new CreateExternalDataSource();
    CreateDataSourceInterface inlineDataSource = new DummyCreateDataSource();

    ds.setDataSourceCreation(internalDataSource, externalDataSource, inlineDataSource);
    ds.connect(editorFile.getTypeName(), editorFile, null);

    assertEquals(GeometryTypeEnum.POINT, dataSourceUpdateListener.geometryType);
    assertTrue(dataSourceUpdateListener.isConnectedToDataSourceFlag);

    Collection<PropertyDescriptor> fieldList = ds.getPropertyDescriptorList();
    assertTrue(fieldList != null);

    List<String> actualFieldnameList = new ArrayList<String>();
    for (PropertyDescriptor field : fieldList) {
        actualFieldnameList.add(field.getName().getLocalPart());
    }

    // Check fields extracted ok
    List<String> expectedFieldList = editorFile.getExpectedFieldList();
    assertTrue(expectedFieldList.size() == actualFieldnameList.size());

    // Not assuming fields are in the same order
    int count = 0;
    for (String fieldName : actualFieldnameList) {
        if (expectedFieldList.contains(fieldName)) {
            count++;
        }
    }
    assertTrue(expectedFieldList.size() == count);

    // Check for fields of certain types
    assertEquals(1, ds.getAttributes(Integer.class).size());
    assertEquals(1, ds.getAttributes(Long.class).size());
    assertEquals(1, ds.getAttributes(Double.class).size());
    assertEquals(1, ds.getAttributes(String.class).size());

    // Add new field - shouldn't work because connections to external data sources are fixed
    DataSourceAttributeData dataSourceField =
            new DataSourceAttributeData("bearing", Double.class, null);
    ds.addField(dataSourceField);
    assertTrue(ds.getAttributes(Double.class).size() == 1);

    // Update field
    DataSourceAttributeList attributeData = new DataSourceAttributeList();
    ds.readAttributes(attributeData);

    assertTrue(ds.getPropertyDescriptorList().size() == attributeData.getData().size());

    List<DataSourceAttributeData> attributeDataList = attributeData.getData();

    DataSourceAttributeData data = attributeDataList.remove(2);
    data.setType(Integer.class);
    attributeDataList.add(2, data);

    // Update fields - shouldn't work because connections to external data sources are fixed
    ds.updateFields(attributeData);
    assertTrue(ds.getAttributes(Integer.class).size() == 1);

    FeatureSource<SimpleFeatureType, SimpleFeature> features = ds.getFeatureSource();
    try {
        assertTrue(features.getFeatures().size() > 1);
    } catch (IOException e) {
        e.printStackTrace();
        fail(e.getMessage());
    }
    assertFalse(dataSourceUpdateListener.isConnectedToDataSourceFlag);
}

Source File: EnvironmentVariablePanelTest.java From sldeditor with GNU General Public License v3.0

4 votes

@Override
public Collection<PropertyDescriptor> getPropertyDescriptorList() {
    return null;
}

Source File: ShapefileMappingGenerator.java From GeoTriples with Apache License 2.0

4 votes

public void run() throws IOException {
	Map<String, URL> connect = new HashMap<String, URL>();
	connect.put("url", new File(pathToShapefile).toURI().toURL());
	DataStore dataStore = DataStoreFinder.getDataStore(connect);
	String[] typeNames = dataStore.getTypeNames();
	for (int i = 0; i < typeNames.length; ++i) {
		String typeName = typeNames[i];
		triplesMaps.put(typeName, "");
		triplesMaps.put(typeName, triplesMaps.get(typeName) + printTriplesMap(typeName));
		triplesMaps.put(typeName, triplesMaps.get(typeName) + printLogicalSource(typeName));
		triplesMaps.put(typeName, triplesMaps.get(typeName) + printSubjectMap(baseURI, typeName));
		FeatureSource<?, ?> featureSource = dataStore.getFeatureSource(typeName);

		FeatureType ft = featureSource.getSchema();
		String typeNameGeo = typeNames[i] + "_Geometry";
		for (PropertyDescriptor property : ft.getDescriptors()) {

			String identifier = property.getName().getLocalPart();
			if (identifier.equals("the_geom")) {
				continue;
			}
			String datatype = TranslateDataTypeToXSD((property.getType().getBinding().getName()));
			Query q = new Query();
			triplesMaps.put(typeName, triplesMaps.get(typeName)
					+ printPredicateObjectMap(identifier, identifier, datatype, typeName));

		}
		// triplesMaps.put(typeName,
		// triplesMaps.get(typeName) + printPredicateObjectMap(true,
		// "hasGeometry",
		// baseURI + (baseURI.endsWith("/") ? "" : "/") + typeNameGeo +
		// "/{GeoTriplesID}", null,
		// typeName, true));
		triplesMaps
				.put(typeName,
						triplesMaps.get(typeName) + printPredicateObjectMap(true, "hasGeometry",
								baseURI + (baseURI.endsWith("/") ? "" : "/") + typeName
										+ "/Geometry/{GeoTriplesID}",
								null, null, "ogc", null, typeName, true, false));
		triplesMaps.put(typeNameGeo, "");
		triplesMaps.put(typeNameGeo, triplesMaps.get(typeNameGeo) + printTriplesMap(typeNameGeo));
		triplesMaps.put(typeNameGeo, triplesMaps.get(typeNameGeo) + printLogicalSource(typeName));
		triplesMaps.put(typeNameGeo, triplesMaps.get(typeNameGeo) + printSubjectMap(baseURI, typeName, null, true));
		triplesMaps.put(typeNameGeo, triplesMaps.get(typeNameGeo) + printGEOPredicateObjectMaps());
	}
	printmapping();
	printontology();
}

Source File: ShapeFileParser.java From GeoTriples with Apache License 2.0

4 votes

public List<TableDef> getTablesDefs() throws Exception {
	DataStore dataStore = null;
	List<ColumnDef> columns = null;
	TableDef onlytable = null;
	Set<Key> primkeys = new HashSet<Key>();
	List<TableDef> tables = new ArrayList<TableDef>();
	try {
		Map<String, URL> connect = new HashMap<String, URL>();
		connect.put("url", shapefile.toURI().toURL());
		dataStore = DataStoreFinder.getDataStore(connect);
		String[] typeNames = dataStore.getTypeNames();
		for (int i = 0; i < typeNames.length; ++i) {
			String typeName = typeNames[i];
			FeatureSource<?, ?> featureSource = dataStore
					.getFeatureSource(typeName);

			FeatureType ft = featureSource.getSchema();
			columns = new ArrayList<ColumnDef>();
			for (PropertyDescriptor property : ft.getDescriptors()) {

				Identifier identifier = Identifier.createDelimited(property
						.getName().getLocalPart());
				DataType datatype = TableDefUtils.TranslateDataTypeToSQLType((property
						.getType().getBinding().getName()));
				ColumnDef col = new ColumnDef(identifier, datatype,
						property.isNillable());
				columns.add(col);
			}
			//Identifier identifier = Identifier.createDelimited("gid");
			//ColumnDef col = new ColumnDef(identifier, TranslateDataTypeToSQLType("Int"), false);
			//columns.add(col);
			//primkeys.add(Key.create(identifier));
			TableName tablename = TableName.create(null, null,
					Identifier.create(true, dataStore.getTypeNames()[0]));
			onlytable = new TableDef(tablename, columns, null, primkeys,
					new HashSet<ForeignKey>());
			tables.add(onlytable);
		}

	} catch (Throwable e) {
		throw new Exception(e.getMessage());
	} finally {
		dataStore.dispose();

	}
	return tables;

}

Source File: ShapeFileParserGDAL.java From GeoTriples with Apache License 2.0

4 votes

public List<TableDef> getTablesDefs() throws Exception {
	DataStore dataStore = null;
	List<ColumnDef> columns = null;
	TableDef onlytable = null;
	Set<Key> primkeys = new HashSet<Key>();
	List<TableDef> tables = new ArrayList<TableDef>();
	try {
		Map<String, URL> connect = new HashMap<String, URL>();
		connect.put("url", shapefile.toURI().toURL());
		dataStore = DataStoreFinder.getDataStore(connect);
		String[] typeNames = dataStore.getTypeNames();
		for (int i = 0; i < typeNames.length; ++i) {
			String typeName = typeNames[i];
			FeatureSource<?, ?> featureSource = dataStore.getFeatureSource(typeName);

			FeatureType ft = featureSource.getSchema();
			columns = new ArrayList<ColumnDef>();
			for (PropertyDescriptor property : ft.getDescriptors()) {

				Identifier identifier = Identifier.createDelimited(property.getName().getLocalPart());
				DataType datatype = TableDefUtils
						.TranslateDataTypeToSQLType((property.getType().getBinding().getName()));
				ColumnDef col = new ColumnDef(identifier, datatype, property.isNillable());
				columns.add(col);
			}
			// Identifier identifier = Identifier.createDelimited("gid");
			// ColumnDef col = new ColumnDef(identifier,
			// TranslateDataTypeToSQLType("Int"), false);
			// columns.add(col);
			// primkeys.add(Key.create(identifier));
			TableName tablename = TableName.create(null, null,
					Identifier.create(true, dataStore.getTypeNames()[0]));
			onlytable = new TableDef(tablename, columns, null, primkeys, new HashSet<ForeignKey>());
			tables.add(onlytable);
		}

	} catch (Throwable e) {
		throw new Exception(e.getMessage());
	} finally {
		dataStore.dispose();

	}
	return tables;

}

Source File: DataSourceInterface.java From sldeditor with GNU General Public License v3.0

2 votes

/**
 * Gets the property descriptor list.
 *
 * @return the property descriptor list
 */
Collection<PropertyDescriptor> getPropertyDescriptorList();

Source File: FieldConfigDSPropertiesTest.java From sldeditor with GNU General Public License v3.0

2 votes

/**
 * Gets the property descriptor list.
 *
 * @return the property descriptor list
 */
@Override
public Collection<PropertyDescriptor> getPropertyDescriptorList() {
    return null;
}

Source File: FieldConfigGeometryFieldTest.java From sldeditor with GNU General Public License v3.0

2 votes

/**
 * Gets the property descriptor list.
 *
 * @return the property descriptor list
 */
@Override
public Collection<PropertyDescriptor> getPropertyDescriptorList() {
    return null;
}

Source File: DataSourceInterface.java From sldeditor with GNU General Public License v3.0

2 votes

/**
 * Gets the property descriptor list.
 *
 * @return the property descriptor list
 */
Collection<PropertyDescriptor> getPropertyDescriptorList();

org.opengis.feature.type.PropertyDescriptor Java Examples