3 One-Instance Classes

There are a number of classes which are instantiated exactly once per server, i.e. there is exactly one object of each of these classes on each server. These objects are used to store and manage server-wide persistent values. For example, the Storage object keeps track of all the files that are used to store objects to disk.

Because of this, I will often refer to the class and the object interchangeably; the Storage class and the Storage object are largely the same thing in practice, as there is only ever one Storage object made from the Storage class.

The one-instance classes are listed below, along with a brief description of the types of data they store.

The Storage Object

The Storage object stores information about the disk files used to store objects and classes. It stores associations between Oz names and file numbers and object wrappers and other data. Storage Issues

The Server Object

The Server object stores a list of players and their associated passwords.

The LanguageStrings Object

The LanguageStrings objects stores localized strings for everything that the core system classes need to output to the user. This is so that people wishing to localize MOZ to a new language don't need to go looking for strings all over the place.

The Help Object

The Help object stores all the basic help information of the MOZ.