org.hibernate.type.descriptor.java.JdbcTimestampTypeDescriptor 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.Timestamp;
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 Timestamp} handling.
*
* @author Steve Ebersole
*/
public class JdbcTimestampTypeDescriptor extends AbstractTypeDescriptor {
public static final JdbcTimestampTypeDescriptor INSTANCE = new JdbcTimestampTypeDescriptor();
public static final String TIMESTAMP_FORMAT = "yyyy-MM-dd HH:mm:ss";
public static class TimestampMutabilityPlan extends MutableMutabilityPlan {
public static final TimestampMutabilityPlan INSTANCE = new TimestampMutabilityPlan();
@Override
public Date deepCopyNotNull(Date value) {
if ( value instanceof Timestamp ) {
Timestamp orig = (Timestamp) value;
Timestamp ts = new Timestamp( orig.getTime() );
ts.setNanos( orig.getNanos() );
return ts;
}
else {
return new Date( value.getTime() );
}
}
}
public JdbcTimestampTypeDescriptor() {
super( Date.class, TimestampMutabilityPlan.INSTANCE );
}
@Override
public String toString(Date value) {
return new SimpleDateFormat( TIMESTAMP_FORMAT ).format( value );
}
@Override
public Date fromString(String string) {
try {
return new Timestamp( new SimpleDateFormat( TIMESTAMP_FORMAT ).parse( string ).getTime() );
}
catch ( ParseException pe) {
throw new HibernateException( "could not parse timestamp string" + string, pe );
}
}
@Override
public boolean areEqual(Date one, Date another) {
if ( one == another ) {
return true;
}
if ( one == null || another == null) {
return false;
}
long t1 = one.getTime();
long t2 = another.getTime();
boolean oneIsTimestamp = Timestamp.class.isInstance( one );
boolean anotherIsTimestamp = Timestamp.class.isInstance( another );
int n1 = oneIsTimestamp ? ( (Timestamp) one ).getNanos() : 0;
int n2 = anotherIsTimestamp ? ( (Timestamp) another ).getNanos() : 0;
if ( t1 != t2 ) {
return false;
}
if ( oneIsTimestamp && anotherIsTimestamp ) {
// both are Timestamps
int nn1 = n1 % 1000000;
int nn2 = n2 % 1000000;
return nn1 == nn2;
}
else {
// at least one is a plain old Date
return true;
}
}
@Override
public int extractHashCode(Date value) {
return Long.valueOf( value.getTime() / 1000 ).hashCode();
}
@SuppressWarnings({ "unchecked" })
@Override
public X unwrap(Date value, Class type, WrapperOptions options) {
if ( value == null ) {
return null;
}
if ( Timestamp.class.isAssignableFrom( type ) ) {
final Timestamp rtn = Timestamp.class.isInstance( value )
? ( Timestamp ) value
: new Timestamp( 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.Time.class.isAssignableFrom( type ) ) {
final java.sql.Time rtn = java.sql.Time.class.isInstance( value )
? ( java.sql.Time ) value
: new java.sql.Time( value.getTime() );
return (X) rtn;
}
if ( 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 ( Timestamp.class.isInstance( value ) ) {
return (Timestamp) value;
}
if ( Long.class.isInstance( value ) ) {
return new Timestamp( (Long) value );
}
if ( Calendar.class.isInstance( value ) ) {
return new Timestamp( ( (Calendar) value ).getTimeInMillis() );
}
if ( Date.class.isInstance( value ) ) {
return (Date) value;
}
throw unknownWrap( value.getClass() );
}
}