How to fetch/set ConcurrencyVersion of a model?

During programmatic read of any model using ModelDataService, ModelQueryComponent namely, ConcurrencyVersionRetrieval has to be used. Example:

public Book getBook(long sysId){
	ModelDataService mds = Services.get(ModelDataService.class);
	Book book=null;
	try {
		book = mds.readById(Book.class, sysId, getPlatformUserContext(), ModelQuery.concurrencyVersionRetrieval())
	} catch(RuntimeException e) {
		//book was not found... do something here!
	}
	return book;
}

As shown in the example above, if ModelQuery.concurrencyVersionRetrieval() is used during read, concurrencyVersion transient fieldwill be set for Book model and its child-level models retrieved in this read operation.