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The Java Developers Almanac 1.4Order this book from Amazon. |
e390. Preventing a Logger from Forwarding Log Records to Its ParentBy default, a logger sends a log record not only to its handlers but to all the handlers of ancestor loggers. If the effects of the parent handlers are not desired, it is necessary to prevent log records from being forwarded to the parent.This example demonstrates how to stop a logger from sending log records to its parent. Note: Although the level of a log record is tested against the logger's log level, this test is not done with any of the logger's parents. However, the log level of all handlers is still in effect. // Get a logger Logger logger = Logger.getLogger("com.mycompany"); // Stop forwarding log records to ancestor handlers logger.setUseParentHandlers(false); // Start forwarding log records to ancestor handlers logger.setUseParentHandlers(true);
e386. Determining If a Message Will Be Logged e387. Logging a Method Call e388. Logging an Exception e389. Minimizing the Impact of Logging Code e391. Writing Log Records to a Log File e392. Writing Log Records to Standard Error e393. Writing Log Records Only After a Condition Occurs e394. Setting a Filter on a Logger Handler
© 2002 Addison-Wesley. |