/*
* 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 http://www.gnu.org/licenses/lgpl-2.1.html
*/
package org.hibernate.orm.type.descriptor.java.internal;
import org.hibernate.HibernateException;
import org.hibernate.internal.util.ReflectHelper;
import org.hibernate.orm.type.descriptor.java.spi.AbstractBasicTypeDescriptor;
import org.hibernate.orm.type.descriptor.spi.JdbcRecommendedSqlTypeMappingContext;
import org.hibernate.orm.type.descriptor.spi.WrapperOptions;
import org.hibernate.orm.type.descriptor.sql.spi.SqlTypeDescriptor;
/**
* Descriptor for {@link Class} handling.
*
* @author Steve Ebersole
*/
public class ClassJavaDescriptor extends AbstractBasicTypeDescriptor<Class> {
public static final ClassJavaDescriptor INSTANCE = new ClassJavaDescriptor();
public ClassJavaDescriptor() {
super( Class.class );
}
@Override
public SqlTypeDescriptor getJdbcRecommendedSqlType(JdbcRecommendedSqlTypeMappingContext context) {
return StringJavaDescriptor.INSTANCE.getJdbcRecommendedSqlType( context );
}
public String toString(Class value) {
return value.getName();
}
public Class fromString(String string) {
if ( string == null ) {
return null;
}
try {
return ReflectHelper.classForName( string );
}
catch ( ClassNotFoundException e ) {
throw new HibernateException( "Unable to locate named class " + string );
}
}
@SuppressWarnings({ "unchecked" })
public <X> X unwrap(Class value, Class<X> type, WrapperOptions options) {
if ( value == null ) {
return null;
}
if ( Class.class.isAssignableFrom( type ) ) {
return (X) value;
}
if ( String.class.isAssignableFrom( type ) ) {
return (X) toString( value );
}
throw unknownUnwrap( type );
}
public <X> Class wrap(X value, WrapperOptions options) {
if ( value == null ) {
return null;
}
if ( Class.class.isInstance( value ) ) {
return (Class) value;
}
if ( String.class.isInstance( value ) ) {
return fromString( (String)value );
}
throw unknownWrap( value.getClass() );
}
}