org.elkoserver.server.context
Interface EphemeralUserFactory

public interface EphemeralUserFactory

Interface implemented by objects that can synthesize ephemeral User objects on demand. Such factory objects are typically singletons stored in the contextor's static object table. These factories are used in conjuction with the user synthesis entry pattern provided by the Session object's extercontext() method. This interface is synchronous, and so is intended to be used when the user can be fabricated entirely from parameter informatio in a non-blocking fashion.

See Also:

UserFactory

Method Summary

User	provideUser(Contextor contextor, Connection connection, JSONObject param, String contextRef, String contextTemplate) Synthesize a user object.

Method Detail

provideUser

User provideUser(Contextor contextor,
                 Connection connection,
                 JSONObject param,
                 String contextRef,
                 String contextTemplate)

Synthesize a user object.

Parameters:

contextor - The contextor of the server in which the synthetic user will be present

connection - The connection over which the new user presented themself.

param - Arbitary JSON object parameterizing the construction. this is analogous to the user record read from the ODB, but may be anything that makes sense for the particular factory implementation. Of course, the sender of this parameter must be coordinated with the factory implementation.

contextRef - Ref of context the new synthesized user will be placed into

contextTemplate - Ref of the context template for the context

Returns:

a synthesized User object constructed according the the logic of the factory and the contents of the param parameter, or null if no such User object could be produced.