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Hibernate's core ORM functionality
/*
* 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.descriptor.java;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.format.DateTimeFormatter;
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 java.sql.Date} handling.
*
* @author Steve Ebersole
*/
public class JdbcDateTypeDescriptor extends AbstractTypeDescriptor {
public static final JdbcDateTypeDescriptor INSTANCE = new JdbcDateTypeDescriptor();
@SuppressWarnings("WeakerAccess")
public static final String DATE_FORMAT = "dd MMMM yyyy";
/**
* Intended for use in reading HQL literals and writing SQL literals
*
* @see #DATE_FORMAT
*/
@SuppressWarnings("unused")
public static final DateTimeFormatter LITERAL_FORMATTER = DateTimeFormatter.ISO_LOCAL_DATE;
/**
* Alias for {@link java.time.format.DateTimeFormatter#ISO_LOCAL_DATE}.
*
* Intended for use with logging
*
* @see #LITERAL_FORMATTER
*/
@SuppressWarnings({"unused", "WeakerAccess"})
public static final DateTimeFormatter LOGGABLE_FORMATTER = DateTimeFormatter.ISO_LOCAL_DATE;
public static class DateMutabilityPlan extends MutableMutabilityPlan {
public static final DateMutabilityPlan INSTANCE = new DateMutabilityPlan();
@Override
public Date deepCopyNotNull(Date value) {
return value instanceof java.sql.Date
? new java.sql.Date( value.getTime() )
: new Date( value.getTime() );
}
}
@SuppressWarnings("WeakerAccess")
public JdbcDateTypeDescriptor() {
super( Date.class, DateMutabilityPlan.INSTANCE );
}
@Override
public String toString(Date value) {
return LOGGABLE_FORMATTER.format( value.toInstant() );
}
@Override
public Date fromString(String string) {
try {
return new Date( new SimpleDateFormat(DATE_FORMAT).parse( string ).getTime() );
}
catch ( ParseException pe) {
throw new HibernateException( "could not parse date string" + string, pe );
}
}
@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.MONTH ) == calendar2.get( Calendar.MONTH )
&& calendar1.get( Calendar.DAY_OF_MONTH ) == calendar2.get( Calendar.DAY_OF_MONTH )
&& calendar1.get( Calendar.YEAR ) == calendar2.get( Calendar.YEAR );
}
@Override
public int extractHashCode(Date value) {
Calendar calendar = Calendar.getInstance();
calendar.setTime( value );
int hashCode = 1;
hashCode = 31 * hashCode + calendar.get( Calendar.MONTH );
hashCode = 31 * hashCode + calendar.get( Calendar.DAY_OF_MONTH );
hashCode = 31 * hashCode + calendar.get( Calendar.YEAR );
return hashCode;
}
@SuppressWarnings({ "unchecked" })
@Override
public X unwrap(Date value, Class type, WrapperOptions options) {
if ( value == null ) {
return null;
}
if ( java.sql.Date.class.isAssignableFrom( type ) ) {
final java.sql.Date rtn = value instanceof java.sql.Date
? ( 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 = value instanceof java.sql.Time
? ( java.sql.Time ) value
: new java.sql.Time( value.getTime() );
return (X) rtn;
}
if ( java.sql.Timestamp.class.isAssignableFrom( type ) ) {
final java.sql.Timestamp rtn = value instanceof java.sql.Timestamp
? ( java.sql.Timestamp ) value
: new java.sql.Timestamp( 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 ( value instanceof java.sql.Date ) {
return (Date) value;
}
if ( value instanceof Long ) {
return new java.sql.Date( (Long) value );
}
if ( value instanceof Calendar ) {
return new java.sql.Date( ( (Calendar) value ).getTimeInMillis() );
}
if ( value instanceof Date ) {
return new java.sql.Date( ( (Date) value ).getTime() );
}
throw unknownWrap( value.getClass() );
}
}