In addition, must also be a {@link OneToOneAssociation}, and can be {@link PropertyAccessorFacet read}.
Note that it is NOT necessary for there to be a facet to {@link PropertySetterFacet set} the property.
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* <tt>null</tt>. * * @see JdoPrimaryKeyPropertyFilter */ public static OneToOneAssociation getPrimaryKeyPropertyFor(final ObjectSpecification objectSpec) { return getPropertyFor(objectSpec, "@PrimaryKey", new JdoPrimaryKeyPropertyFilter()); }