AnnotationBinder.java 文件源码

private static boolean isIdClassPkOfTheAssociatedEntity(
        InheritanceState.ElementsToProcess elementsToProcess,
        XClass compositeClass,
        PropertyData inferredData,
        PropertyData baseInferredData,
        AccessType propertyAccessor,
        Map<XClass, InheritanceState> inheritanceStatePerClass,
        Mappings mappings) {
    if ( elementsToProcess.getIdPropertyCount() == 1 ) {
        final PropertyData idPropertyOnBaseClass = getUniqueIdPropertyFromBaseClass(
                inferredData, baseInferredData, propertyAccessor, mappings
        );
        final InheritanceState state = inheritanceStatePerClass.get( idPropertyOnBaseClass.getClassOrElement() );
        if ( state == null ) {
            return false; //while it is likely a user error, let's consider it is something that might happen
        }
        final XClass associatedClassWithIdClass = state.getClassWithIdClass( true );
        if ( associatedClassWithIdClass == null ) {
            //we cannot know for sure here unless we try and find the @EmbeddedId
            //Let's not do this thorough checking but do some extra validation
            final XProperty property = idPropertyOnBaseClass.getProperty();
            return property.isAnnotationPresent( ManyToOne.class )
                    || property.isAnnotationPresent( OneToOne.class );

        }
        else {
            final XClass idClass = mappings.getReflectionManager().toXClass(
                    associatedClassWithIdClass.getAnnotation( IdClass.class ).value()
            );
            return idClass.equals( compositeClass );
        }
    }
    else {
        return false;
    }
}