AL : Workspace

Workspace

AnotherLore repository is composed of one or more persistent workspaces, each of which is a persistent data store consisting of a directed acyclic graph of items where the edges represent the parent-child relation. Each persistent workspace is identified by a name, unique within the repository, which is a string.

this have ValidChain, ObservationManager, LockManager, IndexDirectory, GlobalStore, LocalStore


Storage

GlobalStore : The node type of a AnotherLore is stored, and Sequence, NamespaceRegistry

LocalStore : The nodes of a workspace form the structure of the stored data while the actual content is stored in the values of the properties.


Sessions

All interaction with the repository occurs through a session. A user receives a session upon connecting to the repository by supplying a set of credentials and the name of a persistent workspace to which the user wishes to connect. The returned session binds the user to the requested persistent workspace with a level of authorization determined by that user's credentials. A session is always bound to exactly one persistent workspace, though a single persistent workspace may be bound to multiple sessions.


User

A user is any agent bound to a session. This may be a human user, an external software process, or anything else that holds and controls the session.

Through a session, the user can access, read and write the nodes and properties of the bound workspace, to the extent allowed by that user's authorization and the capabilities of the repository. Any object acquired, directly, or indirectly through a chain of interceding objects, from a particular session, is said to be within the scope of that session and any method called on such object is also within the scope of the same session.

In the context of discussing a particular object or method call, the session within whose scope that object or method call lies is referred to as the current session, and the workspace to which that session is bound is referred to as the current workspace.


Namespaces

nodetype name is an ordered pair of strings: (N, L)
where N is a AnotherLore namespace and L is a local name in a workspace

namespace is a Universal Resource Identifier. and can access other AnotherLore through namespace URI