Application: gvSIG desktop

        public interface ValidationStatus {

            public static final int VALID = 0;

            public static final int CURRUPTED = 1;

            public static final int UNKNOW = 2;

            public static final int DISCONNECTED_INTERIOR = 10;

            public static final int DUPLICATE_RINGS = 11;

            public static final int HOLE_OUTSIDE_SHELL = 12;

            public static final int INVALID_COORDINATE = 13;

            public static final int NESTED_HOLES = 14;

            public static final int NESTED_SHELLS = 15;

            public static final int RING_NOT_CLOSED = 17;

            public static final int RING_SELF_INTERSECTION = 18;

            public static final int SELF_INTERSECTION = 19;

            public static final int TOO_FEW_POINTS = 20;

            /**

             * True if the geoemtry are valid.

             * 

             * @return true form valid geometries

             */

            public boolean isValid();

            /**

             * Return the status code results of validate the geometry.

             * 

             * @return validation code

             */

            public int getStatusCode();

            /**

             * Return the nearest point to the problem when validate the geometry.

             * 

             * If the geometry is valid, this return null.

             * 

             * @return the nearest point to the problem or null.

             */

            public Point getProblemLocation();

            /**

             * Return a human readable message explaining the cause of the problem.

             * 

             * If the geometry is valid this is null.

             * 

             * @return the message cause of the problem.

             */

            public String getMessage();

        }

        public static int BEST = 0;

        /**

         * Check if the geometry is valid.

         * 

         * @return true if the geometry is valid.

         */

	public boolean isValid();

        /**

         * Check if the geometry is valid and returns the validation status.

         * 

         * @return the ValidationStatus 

         */

	public ValidationStatus getValidationStatus();

import org.gvsig.fmap.geom.impl.DefaultValidationStatus;

        private static final long serialVersionUID = -1318803244617119121L;

        private static final ValidationStatus validationStatus= new DefaultValidationStatus(ValidationStatus.UNKNOW, "Null-geometry is not a valid geometry.");

    public boolean isValid() {

        return false;

    }

    public ValidationStatus getValidationStatus() {

        return validationStatus;

    }

import com.vividsolutions.jts.operation.valid.IsValidOp;

import org.gvsig.fmap.geom.impl.DefaultValidationStatus;

            com.vividsolutions.jts.geom.Geometry jtsgeom = this.getJTS();

            return jtsgeom.isSimple();

        public boolean isValid() {

            com.vividsolutions.jts.geom.Geometry jtsgeom = this.getJTS();

            return jtsgeom.isValid();

        }

        public ValidationStatus getValidationStatus() {

            DefaultValidationStatus status = new DefaultValidationStatus();

            com.vividsolutions.jts.geom.Geometry jtsgeom = null;

            try {

                jtsgeom = this.getJTS();

                IsValidOp validOp = new IsValidOp(jtsgeom);

                status.setValidationError(validOp.getValidationError());

            } catch(Exception ex) {

                status.setStatusCode(ValidationStatus.CURRUPTED);

                status.setMesage("The geometry is corrupted.");

            }

            return status;

        }