Select features from one layer, using a feature geometry from another

Code:

import com.esri.aims.mtier.model.map.layer.*;
import com.esri.aims.mtier.model.map.layer.query.*;
import com.esri.aims.mtier.io.ConnectionProxy;
import com.esri.aims.mtier.model.map.Map;
import com.esri.aims.mtier.model.acetate.*;

public class SelectByFeature {

	public static void main(String[] args) {

		ConnectionProxy connection = new ConnectionProxy();
		Map map = new Map();

		connection.setHost("localhost");
		connection.setPort(5300);
		connection.setService("SantaClara");
		connection.setDisplayMessages(false);
		try {
			map.initMap(connection, 0, true, true, true, true);
		} catch (Exception ex) {
		}
		map.getLayers().setGeometry(true);
		
		// we'll be selecting all the hospitals within a specific topo polygon
		FeatureLayer pointsLayer = getLayerByName("hospital", map);
		FeatureLayer polygonLayer = getLayerByName("topoq24", map);
		
		// create a Filter object and send the GET_FEATURES request
		Filter filter = new Filter();
		filter.setWhereExpression("#ID# = 10");
		filter.setGlobalEnvelope(true);
		polygonLayer.setFilterObject(filter);
		map.refresh();
		
		// get the first returned from the GET_FEATURES
		Geometry geom = polygonLayer.getRecordset().getGeometry(0);
		
		// create a polygon shape from the feature geometry
		Points points = geom.getPoints();
		Ring ring = new Ring();
		ring.setPoints(points);
		Polygon polygon = new Polygon();
		polygon.addRing(ring);
		
		// remove the filter object
		// this is required or the next request will include the previous filter 
		polygonLayer.setFilterObject(null);
		
		// apply the new filter with the shape
		filter.setWhereExpression("");
		filter.setGlobalEnvelope(true);
		filter.setSpatialShape(polygon);
		filter.setRelation(Filter.AREA_INTERSECTION);
		pointsLayer.setFilterObject(filter);
		
		// send the GET_FEATURES request
  		map.refresh();

		// output the resultset
		Recordset recordset = pointsLayer.getRecordset();
		System.out.println("Selected " + recordset.getCount() + " records");
	

		// print out field names
		int fieldCount = recordset.getTableDesc().getCount();
		String fieldName = "";
		for (int i = 0; i < fieldCount; i++) {
			fieldName = recordset.getTableDesc().getFieldName(i);
			System.out.print(fieldName + "\t");
		}
		System.out.print("\n");
		// print field values
		int recordCount = recordset.getCount();
		String fieldValue = "";
		for (int i = 0; i < recordCount; i++) {
			for (int j = 0; j < fieldCount; j++) {
				fieldValue = recordset.getRecords(i).getFieldValue(j);
				System.out.print(fieldValue + '\t');
			}
			System.out.print('\n');
		}		
	
	}

	// getLayer usually requires that you know the index number of the specific layer
	// this is a utility function to return a layer by the name instead
	private static FeatureLayer getLayerByName(String layerName, Map map) {
		FeatureLayer layer = null;
		for (int i=0;i<map.getLayers().getCount();i++) {
			if (map.getLayers().item(i).getName().equalsIgnoreCase(layerName))
				{layer = (FeatureLayer) map.getLayers().item(i);}
			}
		return layer;
		}

}