org.hibernate.engine.spi.Mapping#getReferencedPropertyType ( )源码实例Demo

private boolean hasNonIdentifierPropertyNamedId(final EntityType entityType, final Mapping factory) {
	// TODO : would be great to have a Mapping#hasNonIdentifierPropertyNamedId method
	// I don't believe that Mapping#getReferencedPropertyType accounts for the identifier property; so
	// if it returns for a property named 'id', then we should have a non-id field named id
	try {
		return factory.getReferencedPropertyType(
				entityType.getAssociatedEntityName(),
				EntityPersister.ENTITY_ID
		) != null;
	}
	catch (MappingException e) {
		return false;
	}
}
 

/**
 * Determine the type of either (1) the identifier if we reference the
 * associated entity's PK or (2) the unique key to which we refer (i.e.
 * the property-ref).
 *
 * @param factory The mappings...
 *
 * @return The appropriate type.
 *
 * @throws MappingException Generally, if unable to resolve the associated entity name
 * or unique key property name.
 */
public final Type getIdentifierOrUniqueKeyType(Mapping factory) throws MappingException {
	if ( isReferenceToPrimaryKey() || uniqueKeyPropertyName == null ) {
		return getIdentifierType( factory );
	}
	else {
		Type type = factory.getReferencedPropertyType( getAssociatedEntityName(), uniqueKeyPropertyName );
		if ( type.isEntityType() ) {
			type = ( (EntityType) type ).getIdentifierOrUniqueKeyType( factory );
		}
		return type;
	}
}