Java tutorial
/* * Hibernate, Relational Persistence for Idiomatic Java * * License: GNU Lesser General Public License (LGPL), version 2.1 or later. * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>. */ package org.hibernate.type; import java.util.Date; import org.hibernate.dialect.Dialect; import org.hibernate.type.descriptor.java.JdbcDateTypeDescriptor; /** * A type that maps between {@link java.sql.Types#DATE DATE} and {@link java.sql.Date} * * @author Gavin King * @author Steve Ebersole */ public class DateType extends AbstractSingleColumnStandardBasicType<Date> implements IdentifierType<Date>, LiteralType<Date> { public static final DateType INSTANCE = new DateType(); public DateType() { super(org.hibernate.type.descriptor.sql.DateTypeDescriptor.INSTANCE, JdbcDateTypeDescriptor.INSTANCE); } public String getName() { return "date"; } @Override public String[] getRegistrationKeys() { return new String[] { getName(), java.sql.Date.class.getName() }; } // @Override // protected boolean registerUnderJavaType() { // return true; // } public String objectToSQLString(Date value, Dialect dialect) throws Exception { final java.sql.Date jdbcDate = java.sql.Date.class.isInstance(value) ? (java.sql.Date) value : new java.sql.Date(value.getTime()); // TODO : use JDBC date literal escape syntax? -> {d 'date-string'} in yyyy-mm-dd format return StringType.INSTANCE.objectToSQLString(jdbcDate.toString(), dialect); } public Date stringToObject(String xml) { return fromString(xml); } }