org.hibernate.type.descriptor.java.CalendarTypeDescriptor 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.util.Calendar;
import java.util.Comparator;
import java.util.Date;
import java.util.GregorianCalendar;
import org.hibernate.cfg.Environment;
import org.hibernate.internal.util.compare.CalendarComparator;
import org.hibernate.type.descriptor.WrapperOptions;
/**
* Descriptor for {@link Calendar} handling.
*
* @author Steve Ebersole
*/
public class CalendarTypeDescriptor extends AbstractTypeDescriptor {
public static final CalendarTypeDescriptor INSTANCE = new CalendarTypeDescriptor();
public static class CalendarMutabilityPlan extends MutableMutabilityPlan {
public static final CalendarMutabilityPlan INSTANCE = new CalendarMutabilityPlan();
public Calendar deepCopyNotNull(Calendar value) {
return (Calendar) value.clone();
}
}
protected CalendarTypeDescriptor() {
super( Calendar.class, CalendarMutabilityPlan.INSTANCE );
}
public String toString(Calendar value) {
return DateTypeDescriptor.INSTANCE.toString( value.getTime() );
}
public Calendar fromString(String string) {
Calendar result = new GregorianCalendar();
result.setTime( DateTypeDescriptor.INSTANCE.fromString( string ) );
return result;
}
@Override
public boolean areEqual(Calendar one, Calendar another) {
if ( one == another ) {
return true;
}
if ( one == null || another == null ) {
return false;
}
return one.get(Calendar.MILLISECOND) == another.get(Calendar.MILLISECOND)
&& one.get(Calendar.SECOND) == another.get(Calendar.SECOND)
&& one.get(Calendar.MINUTE) == another.get(Calendar.MINUTE)
&& one.get(Calendar.HOUR_OF_DAY) == another.get(Calendar.HOUR_OF_DAY)
&& one.get(Calendar.DAY_OF_MONTH) == another.get(Calendar.DAY_OF_MONTH)
&& one.get(Calendar.MONTH) == another.get(Calendar.MONTH)
&& one.get(Calendar.YEAR) == another.get(Calendar.YEAR);
}
@Override
public int extractHashCode(Calendar value) {
int hashCode = 1;
hashCode = 31 * hashCode + value.get(Calendar.MILLISECOND);
hashCode = 31 * hashCode + value.get(Calendar.SECOND);
hashCode = 31 * hashCode + value.get(Calendar.MINUTE);
hashCode = 31 * hashCode + value.get(Calendar.HOUR_OF_DAY);
hashCode = 31 * hashCode + value.get(Calendar.DAY_OF_MONTH);
hashCode = 31 * hashCode + value.get(Calendar.MONTH);
hashCode = 31 * hashCode + value.get(Calendar.YEAR);
return hashCode;
}
@Override
public Comparator getComparator() {
return CalendarComparator.INSTANCE;
}
@SuppressWarnings({ "unchecked" })
public X unwrap(Calendar value, Class type, WrapperOptions options) {
if ( value == null ) {
return null;
}
if ( Calendar.class.isAssignableFrom( type ) ) {
return (X) value;
}
if ( java.sql.Date.class.isAssignableFrom( type ) ) {
return (X) new java.sql.Date( value.getTimeInMillis() );
}
if ( java.sql.Time.class.isAssignableFrom( type ) ) {
return (X) new java.sql.Time( value.getTimeInMillis() );
}
if ( java.sql.Timestamp.class.isAssignableFrom( type ) ) {
return (X) new java.sql.Timestamp( value.getTimeInMillis() );
}
if ( java.util.Date.class.isAssignableFrom( type ) ) {
return (X) new java.util.Date( value.getTimeInMillis() );
}
throw unknownUnwrap( type );
}
public Calendar wrap(X value, WrapperOptions options) {
if ( value == null ) {
return null;
}
if ( Calendar.class.isInstance( value ) ) {
return (Calendar) value;
}
if ( ! java.util.Date.class.isInstance( value ) ) {
throw unknownWrap( value.getClass() );
}
Calendar cal = new GregorianCalendar();
if ( Environment.jvmHasTimestampBug() ) {
final long milliseconds = ( (java.util.Date) value ).getTime();
final long nanoseconds = java.sql.Timestamp.class.isInstance( value )
? ( (java.sql.Timestamp) value ).getNanos()
: 0;
cal.setTime( new Date( milliseconds + nanoseconds / 1000000 ) );
}
else {
cal.setTime( (java.util.Date) value );
}
return cal;
}
}