org.hibernate.type.descriptor.java.CharacterTypeDescriptor Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2010, Red Hat Inc. 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 Inc.
*
* 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
* Boston, MA 02110-1301 USA
*/
package org.hibernate.type.descriptor.java;
import org.hibernate.HibernateException;
import org.hibernate.type.descriptor.WrapperOptions;
/**
* Descriptor for {@link Character} handling.
*
* @author Steve Ebersole
*/
public class CharacterTypeDescriptor extends AbstractTypeDescriptor {
public static final CharacterTypeDescriptor INSTANCE = new CharacterTypeDescriptor();
public CharacterTypeDescriptor() {
super( Character.class );
}
public String toString(Character value) {
return value.toString();
}
@SuppressWarnings({ "UnnecessaryBoxing" })
public Character fromString(String string) {
if ( string.length() != 1 ) {
throw new HibernateException( "multiple or zero characters found parsing string" );
}
return Character.valueOf( string.charAt( 0 ) );
}
@SuppressWarnings({ "unchecked" })
public X unwrap(Character value, Class type, WrapperOptions options) {
if ( value == null ) {
return null;
}
if ( Character.class.isAssignableFrom( type ) ) {
return (X) value;
}
if ( String.class.isAssignableFrom( type ) ) {
return (X) value.toString();
}
if ( Number.class.isAssignableFrom( type ) ) {
return (X) Short.valueOf( (short)value.charValue() );
}
throw unknownUnwrap( type );
}
@SuppressWarnings({ "UnnecessaryBoxing" })
public Character wrap(X value, WrapperOptions options) {
if ( value == null ) {
return null;
}
if ( Character.class.isInstance( value ) ) {
return (Character) value;
}
if ( String.class.isInstance( value ) ) {
final String str = (String) value;
return Character.valueOf( str.charAt(0) );
}
if ( Number.class.isInstance( value ) ) {
final Number nbr = (Number) value;
return Character.valueOf( (char)nbr.shortValue() );
}
throw unknownWrap( value.getClass() );
}
}