private AssociationStorageStrategy getAssociationStorageStrategy(AssociationKeyMetadata keyMetadata, AssociationTypeContext associationTypeContext) {
AssociationStorageType associationStorage = associationTypeContext
.getOptionsContext()
.getUnique( AssociationStorageOption.class );
AssociationDocumentType associationDocumentType = associationTypeContext
.getOptionsContext()
.getUnique( AssociationDocumentStorageOption.class );
return AssociationStorageStrategy.getInstance( keyMetadata, associationStorage, associationDocumentType );
}