/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* JBoss, Home of Professional Open Source
* Copyright 2010-2011 Red Hat Inc. and/or its affiliates and other contributors
* as indicated by the @authors tag. All rights reserved.
* See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* 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, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* 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,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
package org.hibernate.ogm.type.descriptor;
import org.hibernate.ogm.datastore.spi.Tuple;
import org.hibernate.ogm.util.impl.Log;
import org.hibernate.ogm.util.impl.LoggerFactory;
import org.hibernate.type.descriptor.java.JavaTypeDescriptor;
/**
* @author Emmanuel Bernard
*/
public final class BasicGridExtractor<J> implements GridValueExtractor<J> {
private static final Log log = LoggerFactory.make();
private final GridTypeDescriptor gridTypeDescriptor;
private final JavaTypeDescriptor<J> javaTypeDescriptor;
public BasicGridExtractor( JavaTypeDescriptor<J> javaTypeDescriptor, GridTypeDescriptor gridTypeDescriptor ) {
this.gridTypeDescriptor = gridTypeDescriptor;
this.javaTypeDescriptor = javaTypeDescriptor;
}
@Override
public J extract(final Tuple resultset, final String name) {
@SuppressWarnings( "unchecked" )
final J result = (J) resultset.get( name );
if ( result == null ) {
log.tracef( "found [null] as column [$s]", name );
return null;
}
else {
if ( log.isTraceEnabled() ) {
log.tracef( "found [$s] as column [$s]", javaTypeDescriptor.extractLoggableRepresentation( result ), name );
}
return result;
}
}
}