org.hibernate.type.descriptor.java.JdbcTimeTypeDescriptor Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2010, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program 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 distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.type.descriptor.java;
import java.sql.Time;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import org.hibernate.HibernateException;
import org.hibernate.type.descriptor.WrapperOptions;
/**
* Descriptor for {@link Time} handling.
*
* @author Steve Ebersole
*/
public class JdbcTimeTypeDescriptor extends AbstractTypeDescriptor {
public static final JdbcTimeTypeDescriptor INSTANCE = new JdbcTimeTypeDescriptor();
public static final String TIME_FORMAT = "HH:mm:ss";
public static class TimeMutabilityPlan extends MutableMutabilityPlan {
public static final TimeMutabilityPlan INSTANCE = new TimeMutabilityPlan();
@Override
public Date deepCopyNotNull(Date value) {
return Time.class.isInstance( value )
? new Time( value.getTime() )
: new Date( value.getTime() );
}
}
public JdbcTimeTypeDescriptor() {
super( Date.class, TimeMutabilityPlan.INSTANCE );
}
@Override
public String toString(Date value) {
return new SimpleDateFormat( TIME_FORMAT ).format( value );
}
@Override
public java.util.Date fromString(String string) {
try {
return new Time( new SimpleDateFormat( TIME_FORMAT ).parse( string ).getTime() );
}
catch ( ParseException pe ) {
throw new HibernateException( "could not parse time string" + string, pe );
}
}
@Override
public int extractHashCode(Date value) {
Calendar calendar = Calendar.getInstance();
calendar.setTime( value );
int hashCode = 1;
hashCode = 31 * hashCode + calendar.get( Calendar.HOUR_OF_DAY );
hashCode = 31 * hashCode + calendar.get( Calendar.MINUTE );
hashCode = 31 * hashCode + calendar.get( Calendar.SECOND );
hashCode = 31 * hashCode + calendar.get( Calendar.MILLISECOND );
return hashCode;
}
@Override
public boolean areEqual(Date one, Date another) {
if ( one == another ) {
return true;
}
if ( one == null || another == null ) {
return false;
}
if ( one.getTime() == another.getTime() ) {
return true;
}
Calendar calendar1 = Calendar.getInstance();
Calendar calendar2 = Calendar.getInstance();
calendar1.setTime( one );
calendar2.setTime( another );
return calendar1.get( Calendar.HOUR_OF_DAY ) == calendar2.get( Calendar.HOUR_OF_DAY )
&& calendar1.get( Calendar.MINUTE ) == calendar2.get( Calendar.MINUTE )
&& calendar1.get( Calendar.SECOND ) == calendar2.get( Calendar.SECOND )
&& calendar1.get( Calendar.MILLISECOND ) == calendar2.get( Calendar.MILLISECOND );
}
@SuppressWarnings({ "unchecked" })
@Override
public X unwrap(Date value, Class type, WrapperOptions options) {
if ( value == null ) {
return null;
}
if ( Time.class.isAssignableFrom( type ) ) {
final Time rtn = Time.class.isInstance( value )
? ( Time ) value
: new Time( value.getTime() );
return (X) rtn;
}
if ( java.sql.Date.class.isAssignableFrom( type ) ) {
final java.sql.Date rtn = java.sql.Date.class.isInstance( value )
? ( java.sql.Date ) value
: new java.sql.Date( value.getTime() );
return (X) rtn;
}
if ( java.sql.Timestamp.class.isAssignableFrom( type ) ) {
final java.sql.Timestamp rtn = java.sql.Timestamp.class.isInstance( value )
? ( java.sql.Timestamp ) value
: new java.sql.Timestamp( value.getTime() );
return (X) rtn;
}
if ( java.util.Date.class.isAssignableFrom( type ) ) {
return (X) value;
}
if ( Calendar.class.isAssignableFrom( type ) ) {
final GregorianCalendar cal = new GregorianCalendar();
cal.setTimeInMillis( value.getTime() );
return (X) cal;
}
if ( Long.class.isAssignableFrom( type ) ) {
return (X) Long.valueOf( value.getTime() );
}
throw unknownUnwrap( type );
}
@Override
public Date wrap(X value, WrapperOptions options) {
if ( value == null ) {
return null;
}
if ( Time.class.isInstance( value ) ) {
return (Time) value;
}
if ( Long.class.isInstance( value ) ) {
return new Time( (Long) value );
}
if ( Calendar.class.isInstance( value ) ) {
return new Time( ( (Calendar) value ).getTimeInMillis() );
}
if ( Date.class.isInstance( value ) ) {
return (Date) value;
}
throw unknownWrap( value.getClass() );
}
}