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The core O/RM functionality as provided by Hibernate
/*
* 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 .
*/
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
implements IdentifierType, LiteralType {
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 );
}
}