Java tutorial
/** * Copyright (C) 2013, Moss Computing Inc. * * This file is part of hibernate-toolkit. * * hibernate-toolkit is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * hibernate-toolkit 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 * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with hibernate-toolkit; see the file COPYING. If not, write to the * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301 USA. * * Linking this library statically or dynamically with other modules is * making a combined work based on this library. Thus, the terms and * conditions of the GNU General Public License cover the whole * combination. * * As a special exception, the copyright holders of this library give you * permission to link this library with independent modules to produce an * executable, regardless of the license terms of these independent * modules, and to copy and distribute the resulting executable under * terms of your choice, provided that you also meet, for each linked * independent module, the terms and conditions of the license of that * module. An independent module is a module which is not derived from * or based on this library. If you modify this library, you may extend * this exception to your version of the library, but you are not * obligated to do so. If you do not wish to do so, delete this * exception statement from your version. */ package com.moss.hibernate; import java.io.Serializable; import java.net.MalformedURLException; import java.net.URL; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.util.UUID; import org.hibernate.HibernateException; import org.hibernate.usertype.UserType; public class URLUserType implements UserType { public static final String CLASS_NAME = "com.moss.hibernate.URLUserType"; public Object assemble(Serializable arg0, Object arg1) throws HibernateException { try { return new URL((String) arg0); } catch (MalformedURLException ex) { throw new HibernateException(ex); } } public Object deepCopy(Object arg0) throws HibernateException { return arg0; } public Serializable disassemble(Object arg0) throws HibernateException { return ((URL) arg0).toString(); } public boolean equals(Object arg0, Object arg1) throws HibernateException { if (arg0 == null && arg1 == null) return true; // both are null else if (arg0 == null || arg1 == null) return false; // just one of them is null else return arg0.equals(arg1); // neither of them are null } public int hashCode(Object arg0) throws HibernateException { return arg0.hashCode(); } public boolean isMutable() { return false; } public Object nullSafeGet(ResultSet resultSet, String[] columnNames, Object owner) throws HibernateException, SQLException { String textForm = resultSet.getString(columnNames[0]); if (textForm == null) return null; else { try { return new URL((String) textForm); } catch (MalformedURLException ex) { throw new HibernateException(ex); } } } public void nullSafeSet(PreparedStatement statement, Object value, int columnPosition) throws HibernateException, SQLException { if (value == null) { statement.setNull(columnPosition, java.sql.Types.VARCHAR); } else { statement.setString(columnPosition, value.toString()); } } public Object replace(Object original, Object target, Object owner) throws HibernateException { return original; } public Class returnedClass() { return URL.class; } public int[] sqlTypes() { return new int[] { java.sql.Types.VARCHAR }; } }