/* * 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.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; /** * TODO : javadoc * * @author Steve Ebersole */ public class DateTypeDescriptor extends AbstractTypeDescriptor<Date> { public static final DateTypeDescriptor INSTANCE = new DateTypeDescriptor(); public static final String DATE_FORMAT = "dd MMMM yyyy"; public static class DateMutabilityPlan extends MutableMutabilityPlan<Date> { public static final DateMutabilityPlan INSTANCE = new DateMutabilityPlan(); public Date deepCopyNotNull(Date value) { return new Date( value.getTime() ); } } public DateTypeDescriptor() { super( Date.class, DateMutabilityPlan.INSTANCE ); } public String toString(Date value) { return new SimpleDateFormat( DATE_FORMAT ).format( value ); } public Date fromString(String string) { try { return new SimpleDateFormat(DATE_FORMAT).parse( string ); } 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; } return one.getTime() == another.getTime(); } @Override public int extractHashCode(Date value) { Calendar calendar = java.util.Calendar.getInstance(); calendar.setTime( value ); return CalendarTypeDescriptor.INSTANCE.extractHashCode( calendar ); } @SuppressWarnings({ "unchecked" }) public <X> X unwrap(Date value, Class<X> type, WrapperOptions options) { if ( value == null ) { return null; } 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 ( 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 ( 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 ); } @SuppressWarnings({ "UnnecessaryUnboxing" }) public <X> Date wrap(X value, WrapperOptions options) { if ( value == null ) { return null; } if ( Date.class.isInstance( value ) ) { return (Date) value; } if ( Long.class.isInstance( value ) ) { return new Date( ( (Long) value ).longValue() ); } if ( Calendar.class.isInstance( value ) ) { return new Date( ( (Calendar) value ).getTimeInMillis() ); } throw unknownWrap( value.getClass() ); } }