Hibernate

package r4r;
import java.io.Serializable;
import java.util.Date;
import java.util.Iterator;
import org.hibernate.EmptyInterceptor;
import org.hibernate.Transaction;
import org.hibernate.type.Type;
public class HibernateInterceptor extends EmptyInterceptor {
 private int updates;
 private int creates;
 private int loads;
 public void onDelete(Object entity,
 Serializable id,
 Object[] state,
 String[] propertyNames,
 Type[] types) {
 }
 public boolean onFlushDirty(Object entity,
 Serializable id,
 Object[] currentState,
 Object[] previousState,
 String[] propertyNames,
 Type[] types) {
 if ( entity instanceof Auditable ) {
 updates++;
 for ( int i=0; i < propertyNames.length; i++ ) {
 if ( "lastUpdateTimestamp".equals( propertyNames[i] ) ) {
 currentState[i] = new Date();
 return true;
 }
 }
 }
 return false;
 }
 public boolean onLoad(Object entity,
 Serializable id,
 Object[] state,
 String[] propertyNames,
 Type[] types) {
 if ( entity instanceof Auditable ) {
 loads++;
 }
 return false;
 }
 public boolean onSave(Object entity,
 Serializable id,
 Object[] state,
 String[] propertyNames,
 Type[] types) {
 if ( entity instanceof Auditable ) {
 creates++;
 for ( int i=0; i<propertyNames.length; i++ ) {
 if ( "createTimestamp".equals( propertyNames[i] ) ) {
 state[i] = new Date();
 return true;
 }
 }
 }
 return false;
 }
 public void afterTransactionCompletion(Transaction tx) {
 if ( tx.wasCommitted() ) {
 System.out.println("Creations: " + creates + ", Updates: " + updates, "Loads: " + loads);
 }
 updates=0;
 creates=0;
 loads=0;
 }
}