transient

Let's say I have a RESTful, hypertext-driven service that models an ice cream store. To help manage my store better, I want to be able to display a daily report listing quantity and dollar value of each kind of ice cream sold. It seems like this reporting capability could be exposed as a resource called DailyReport. A DailyReport can be generated quickly, and there doesn't seem to be any advantage to actually storing reports on the server. I only want a DailyReport for some days, other days I don't care about getting a DailyReport. Furthermore, storing DailyReports on the server would

Suppose I have a User entity like this: class User { private String login; transient private String hashedPassword; } I don't want to ever transfer hashedPassword to clients, so I make it transient. This class is mapped by Hibernate, with both fields mapped in hbm.xml. Is this implementation safe and correct? Will Hibernate correctly store hashedPassword in database, load it into objects from database, keep it in replicated 2nd level cache and local session cache etc? In order words, does Hibernate or 2nd level cache respect transient in any way or completely ignore it? EDIT : I already got

I have a JSF Beans structure of this sort: @ManagedBean @ViewScoped public class ViewBeany implements Serializable { .... @ManagedProperty(value='#{sessionBeany}) transient private SessionBeany sessionBeany; ... public getSessionBeany() { ... }; public setSessionBeany(SessionBeany sessionBeany) { ... }; } The reason for the transient is that the session bean has some non-Serializable members and cannot be made Serializable. Will this work? If not, How can I solve the problem of not being able to serialize SesionBeany but having to keep it as a managed property under a view scoped bean? Thanks!

I have been experimenting with Apache Spark trying to solve some queries like top-k, skyline etc. I have made a wrapper which encloses SparkConf and JavaSparkContext named SparkContext . This class also implements serializable but since SparkConf and JavaSparkContext are not serializable then the class isn't either. I have a class solving the topK query named TopK , the class implements serializable but the class also has a SparkContext member variable which is not serializable (for the reason above). Therefore I am getting an exception whenever I try to execute a TopK method from within a

I have an entity that contains lastName and firstName attributes. For reasons beyond the scope of this question, I want a fullName attribute that gets calculated as a concatenation of firstName + space + lastName. Because this is purely a calculated value, with no need for redo/undo or any other of the more sophisticated aspects of transient attributes (merging, etc.), my gut tells me to just override the getter method to return said calculated value. Reading suggests that, if I do this, my only concern would be whether it's KVO compliant, which I can address by using