/* * GeometryType.java *  * PostGIS extension for PostgreSQL JDBC driver - EJB3 Tutorial *  * (C) 2006  Norman Barker <norman.barker@gmail.com> *  * This library is free software; you can redistribute it and/or modify it under * the terms of the GNU Lesser General Public License as published by the Free * Software Foundation, either version 2.1 of the License. *  * This library is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more * details. *  * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software Foundation, Inc., * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA or visit the web at * http://www.gnu.org. *  * $Id: GeometryType.java 2531 2006-11-22 10:42:17Z mschaber $ */package org.postgis.hibernate;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.Serializable;import java.sql.Blob;import java.sql.PreparedStatement;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Types;import org.hibernate.HibernateException;import org.hibernate.usertype.UserType;import java.io.InputStream;import org.postgis.Geometry;import org.postgis.binary.BinaryParser;import org.postgis.binary.BinaryWriter;/** * @author nbarker $date 16/8/06 */public class GeometryType implements UserType {	 private static final int[] SQL_TYPES = { Types.BLOB };		/**	 * @see org.hibernate.usertype.UserType#deepCopy(java.lang.Object)	 */	public Object deepCopy(Object value) throws HibernateException {		return value;	}	/**	 * @see org.hibernate.usertype.UserType#equals(java.lang.Object, java.lang.Object)	 */	public boolean equals(Object x, Object y) throws HibernateException {		if (x == y) {			return true;		} else if (x == null || y == null) {			return false;		} else {			return x.equals(y);		}	}	/**	 * @see org.hibernate.usertype.UserType#hashCode(java.lang.Object)	 */	public int hashCode(Object arg0) throws HibernateException {		// TODO Auto-generated method stub		return 0;	}	/**	 * @see org.hibernate.usertype.UserType#isMutable()	 */	public boolean isMutable() {		return false;	}	/**)	 * @see org.hibernate.usertype.UserType#nullSafeGet(java.sql.ResultSet, java.lang.String[], java.lang.Object)	 */	public Object nullSafeGet(ResultSet resultSet, 		      String[] names, Object owner) throws HibernateException, SQLException {        Geometry result = null;        String geom = resultSet.getString(names[0]);        if(geom != null ) {            BinaryParser parser = new BinaryParser();            result = parser.parse(geom);        }        return result;	}	/**	 * @see org.hibernate.usertype.UserType#nullSafeSet(java.sql.PreparedStatement, java.lang.Object, int)	 */	public void nullSafeSet(PreparedStatement statement, 		      Object value, int index) throws HibernateException, SQLException {	    if (value == null) {	        statement.setBytes(index, null);	      } else {	    	BinaryWriter bw = new BinaryWriter();	    		    	byte[] bytes = bw.writeBinary((Geometry)value);	        statement.setBytes(index, bytes);	      }	}	/* (non-Javadoc)	 * @see org.hibernate.usertype.UserType#replace(java.lang.Object, java.lang.Object, java.lang.Object)	 */	public Object replace(Object original, Object target,                               Object owner) throws HibernateException {		return original;		}	/* (non-Javadoc)	 * @see org.hibernate.usertype.UserType#returnedClass()	 */	public Class returnedClass() {		return Geometry.class;	}	/**	 * @see org.hibernate.usertype.UserType#sqlTypes()	 */	public int[] sqlTypes() {		return GeometryType.SQL_TYPES;	}	/**	 * @see org.hibernate.usertype.UserType#assemble(java.io.Serializable, java.lang.Object)	 */	public Object assemble(Serializable cached, Object owner) throws HibernateException {		return cached;	}		/**	 * @see org.hibernate.usertype.UserType#disassemble(java.lang.Object)	 */	public Serializable disassemble(Object value) throws HibernateException {		return (Serializable)value;	}}