org.hibernate.type.TimestampType Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008, Red Hat Middleware LLC 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 Middleware LLC.
*
* 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
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*
*/
package org.hibernate.type;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Timestamp;
import java.sql.Types;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Comparator;
import org.hibernate.EntityMode;
import org.hibernate.HibernateException;
import org.hibernate.cfg.Environment;
import org.hibernate.dialect.Dialect;
import org.hibernate.engine.SessionImplementor;
import org.hibernate.util.ComparableComparator;
/**
* timestamp: A type that maps an SQL TIMESTAMP to a Java
* java.util.Date or java.sql.Timestamp.
* @author Gavin King
*/
public class TimestampType extends MutableType implements VersionType, LiteralType {
private static final String TIMESTAMP_FORMAT = "yyyy-MM-dd HH:mm:ss";
public Object get(ResultSet rs, String name) throws SQLException {
return rs.getTimestamp(name);
}
public Class getReturnedClass() {
return java.util.Date.class;
}
public void set(PreparedStatement st, Object value, int index) throws SQLException {
Timestamp ts;
if (value instanceof Timestamp) {
ts = (Timestamp) value;
}
else {
ts = new Timestamp( ( (java.util.Date) value ).getTime() );
}
st.setTimestamp(index, ts);
}
public int sqlType() {
return Types.TIMESTAMP;
}
public String getName() { return "timestamp"; }
public String toString(Object val) {
return new SimpleDateFormat(TIMESTAMP_FORMAT).format( (java.util.Date) val );
}
public Object deepCopyNotNull(Object value) {
if ( value instanceof Timestamp ) {
Timestamp orig = (Timestamp) value;
Timestamp ts = new Timestamp( orig.getTime() );
ts.setNanos( orig.getNanos() );
return ts;
}
else {
java.util.Date orig = (java.util.Date) value;
return new java.util.Date( orig.getTime() );
}
}
public boolean isEqual(Object x, Object y) {
if (x==y) return true;
if (x==null || y==null) return false;
long xTime = ( (java.util.Date) x ).getTime();
long yTime = ( (java.util.Date) y ).getTime();
boolean xts = x instanceof Timestamp;
boolean yts = y instanceof Timestamp;
int xNanos = xts ? ( (Timestamp) x ).getNanos() : 0;
int yNanos = yts ? ( (Timestamp) y ).getNanos() : 0;
if ( !Environment.jvmHasJDK14Timestamp() ) {
xTime += xNanos / 1000000;
yTime += yNanos / 1000000;
}
if ( xTime!=yTime ) return false;
if (xts && yts) {
// both are Timestamps
int xn = xNanos % 1000000;
int yn = yNanos % 1000000;
return xn==yn;
}
else {
// at least one is a plain old Date
return true;
}
}
public int getHashCode(Object x, EntityMode entityMode) {
java.util.Date ts = (java.util.Date) x;
return new Long( ts.getTime() / 1000 ).hashCode();
}
public Object next(Object current, SessionImplementor session) {
return seed( session );
}
public Object seed(SessionImplementor session) {
return new Timestamp( System.currentTimeMillis() );
}
public Comparator getComparator() {
return ComparableComparator.INSTANCE;
}
public String objectToSQLString(Object value, Dialect dialect) throws Exception {
return '\'' + new Timestamp( ( (java.util.Date) value ).getTime() ).toString() + '\'';
}
public Object fromStringValue(String xml) throws HibernateException {
try {
return new Timestamp( new SimpleDateFormat(TIMESTAMP_FORMAT).parse(xml).getTime() );
}
catch (ParseException pe) {
throw new HibernateException("could not parse XML", pe);
}
}
}