org.hibernate.type.descriptor.java.EnumJavaTypeDescriptor Maven / Gradle / Ivy
/*
* 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.type.descriptor.java;
import org.hibernate.type.descriptor.WrapperOptions;
/**
* Describes a Java Enum type.
*
* @author Steve Ebersole
*/
public class EnumJavaTypeDescriptor extends AbstractTypeDescriptor {
@SuppressWarnings("unchecked")
public EnumJavaTypeDescriptor(Class type) {
super( type, ImmutableMutabilityPlan.INSTANCE );
//JavaTypeDescriptorRegistry.INSTANCE.addDescriptor( this );
}
@Override
public String toString(T value) {
return value == null ? "" : value.name();
}
@Override
@SuppressWarnings("unchecked")
public T fromString(String string) {
return string == null ? null : (T) Enum.valueOf( getJavaType(), string );
}
@Override
@SuppressWarnings("unchecked")
public X unwrap(T value, Class type, WrapperOptions options) {
if ( String.class.equals( type ) ) {
return (X) toName( value );
}
else if ( Integer.class.isInstance( type ) ) {
return (X) toOrdinal( value );
}
return (X) value;
}
@Override
@SuppressWarnings("unchecked")
public T wrap(X value, WrapperOptions options) {
if ( value == null ) {
return null;
}
else if ( String.class.isInstance( value ) ) {
return fromName( (String) value );
}
else if ( Integer.class.isInstance( value ) ) {
return fromOrdinal( (Integer) value );
}
return (T) value;
}
public Integer toOrdinal(E domainForm) {
if ( domainForm == null ) {
return null;
}
return domainForm.ordinal();
}
@SuppressWarnings("unchecked")
public E fromOrdinal(Integer relationalForm) {
if ( relationalForm == null ) {
return null;
}
return (E) getJavaType().getEnumConstants()[ relationalForm ];
}
@SuppressWarnings("unchecked")
public T fromName(String relationalForm) {
if ( relationalForm == null ) {
return null;
}
return (T) Enum.valueOf( getJavaType(), relationalForm.trim() );
}
public String toName(T domainForm) {
if ( domainForm == null ) {
return null;
}
return domainForm.name();
}
}