/**
 * @param mergeWithAnnotations Whether to use Java annotations for this
 * element, if present and not disabled by the XMLContext defaults.
 * In some contexts (such as an association mapping) merging with
 * annotations is never allowed.
 */
private PrimaryKeyJoinColumns getPrimaryKeyJoinColumns(Element element, XMLContext.Default defaults, boolean mergeWithAnnotations) {
	PrimaryKeyJoinColumn[] columns = buildPrimaryKeyJoinColumns( element );
	if ( mergeWithAnnotations ) {
		if ( columns.length == 0 && defaults.canUseJavaAnnotations() ) {
			PrimaryKeyJoinColumn annotation = getPhysicalAnnotation( PrimaryKeyJoinColumn.class );
			if ( annotation != null ) {
				columns = new PrimaryKeyJoinColumn[] { annotation };
			}
			else {
				PrimaryKeyJoinColumns annotations = getPhysicalAnnotation( PrimaryKeyJoinColumns.class );
				columns = annotations != null ? annotations.value() : columns;
			}
		}
	}
	if ( columns.length > 0 ) {
		AnnotationDescriptor ad = new AnnotationDescriptor( PrimaryKeyJoinColumns.class );
		ad.setValue( "value", columns );
		return AnnotationFactory.create( ad );
	}
	else {
		return null;
	}
}
 

public static PrimaryKeyJoinColumn[] getPrimaryKeyJoinColumns(final Class<?> clazz) {
    final PrimaryKeyJoinColumn pkjc = clazz.getAnnotation(PrimaryKeyJoinColumn.class);
    if (pkjc != null) {
        return new PrimaryKeyJoinColumn[]{pkjc};
    }

    final PrimaryKeyJoinColumns pkjcs = clazz.getAnnotation(PrimaryKeyJoinColumns.class);
    if (pkjcs != null) {
        return pkjcs.value();
    }

    return null;
}
 

public XAnnotation<?> createPrimaryKeyJoinColumns(
		List<PrimaryKeyJoinColumn> cPrimaryKeyJoinColumn) {
	return transform(
			PrimaryKeyJoinColumns.class,
			javax.persistence.PrimaryKeyJoinColumn.class,
			cPrimaryKeyJoinColumn,
			new Transformer<PrimaryKeyJoinColumn, XAnnotation<javax.persistence.PrimaryKeyJoinColumn>>() {
				public XAnnotation<javax.persistence.PrimaryKeyJoinColumn> transform(
						PrimaryKeyJoinColumn input) {
					return createPrimaryKeyJoinColumn(input);
				}

			});
}
 

public static PrimaryKeyJoinColumn[] getPrimaryKeyJoinColumns(Class<?> clazz) {
    PrimaryKeyJoinColumn pkjc = clazz.getAnnotation(PrimaryKeyJoinColumn.class);
    if (pkjc != null) {
        return new PrimaryKeyJoinColumn[] {pkjc};
    }

    PrimaryKeyJoinColumns pkjcs = clazz.getAnnotation(PrimaryKeyJoinColumns.class);
    if (pkjcs != null) {
        return pkjcs.value();
    }

    return null;
}