What you know is false. Volatile is not used to synchronize memory access between threads, apply any kind of memory fences, or anything of the sort. Operations on volatile memory are not atomic, and they are not guaranteed to be in any particular order. volatile is one of the most misunderstood facilities in the entire … Read more
Yes, Drools is completely dynamic. You can add/remove/replaces rules at runtime. All the existing sessions are automatically updated in order to keep consistency. Check the documentation/javadoc: http://www.jboss.org/drools/documentation And here you can see some integration tests: DynamicRulesTest.java
Well, in broad strokes: If the name is preceded by ::, as in ::A or X::A, then use qualified name lookup. First look up X, if it exists (if not use the global namespace) then look inside it for A. If X is a class, and A is not a direct member, then look in … Read more
Seems like what you’re looking for are the Principles of Object-Oriented Design. Summarized from Agile Software Development Principles, Patterns, and Practices. These principles are the hard-won product of decades of experience in software engineering. They are not the product of a single mind, but they represent the integration and writings of a large number of … Read more
You can try these below views. SELECT * FROM USER_SYS_PRIVS; SELECT * FROM USER_TAB_PRIVS; SELECT * FROM USER_ROLE_PRIVS; DBAs and other power users can find the privileges granted to other users with the DBA_ versions of these same views. They are covered in the documentation . Those views only show the privileges granted directly to … Read more
Although there is the RFC 2965 (Set-Cookie2, had already obsoleted RFC 2109) that should define the cookie nowadays, most browsers don’t fully support that but just comply to the original specification by Netscape. There is a distinction between the Domain attribute value and the effective domain: the former is taken from the Set-Cookie header field … Read more