June 1999
Intermediate to advanced
368 pages
8h 21m
English
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10.4. User Sessions
In addition to the account entry (which stores persistent information for a user), we also need to store data about each user that is present only as long as the user is online. When a user logs in, the messenger creates and writes a SessionEntry object into the space, which serves two purposes. First, its existence in the space means that the user can be considered online. It also provides an object in which per-session information, such as the date and time the user signed on, can be stored. Here is the definition of the session entry:
public class SessionEntry implements Entry { public String username; public Long loginTime; public SessionEntry() { } public SessionEntry(String username) { this.username = username; } public ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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