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The core O/RM functionality as provided by Hibernate
/*
* 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.boot.jaxb.hbm.internal;
import java.util.Locale;
import org.hibernate.FlushMode;
import org.hibernate.HibernateException;
/**
* JAXB marshalling for the FlushMode enum
*
* NOTE : The XML schemas define the use of {@code "never"}, which corresponds
* to the removed FlushMode#NEVER. Here we will also handle mapping
* FlushMode#NEVER to FlushMode#MANUAL
*
* @author Steve Ebersole
*/
public class FlushModeConverter {
public static FlushMode fromXml(String name) {
// valid values are a subset of all FlushMode possibilities, so we will
// handle the conversion here directly.
// Also, we want to map "never"->MANUAL (rather than NEVER)
if ( name == null ) {
return null;
}
if ( "never".equalsIgnoreCase( name ) ) {
return FlushMode.MANUAL;
}
else if ( "auto".equalsIgnoreCase( name ) ) {
return FlushMode.AUTO;
}
else if ( "always".equalsIgnoreCase( name ) ) {
return FlushMode.ALWAYS;
}
// if the incoming value was not null *and* was not one of the pre-defined
// values, we need to throw an exception. This *should never happen if the
// document we are processing conforms to the schema...
throw new HibernateException( "Unrecognized flush mode : " + name );
}
public static String toXml(FlushMode mode) {
if ( mode == null ) {
return null;
}
// conversely, we want to map MANUAL -> "never" here
if ( mode == FlushMode.MANUAL ) {
return "never";
}
// todo : what to do if the incoming value does not conform to allowed values?
// for now, we simply don't deal with that (we write it out).
return mode.name().toLowerCase( Locale.ENGLISH );
}
}