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- Release of version 1.0 (the 20th public release)
- Package hierarchy now starts at org.apache.log4j. [***]
- Added the fatal() family of methods to the Category
class. Moreoever, the EMERG priority has been removed from the
Priority class. This priority has been replaced by the FATAL
priority that is more widely accepted. This change will
require EMERG log statements to be replaced by FATAL log
statements. Assuming EMERG log statements are rare, this should
have a small but bearable impact on existing client code.
Moreover, the Unix Syslog priorities ALERT, CRIT and NOTICE are no
longer recognized. Support for these priorities was mininal and
few users should suffer from these changes. [**/***]
- Removed the methods setRootPriority, getRootPriority as these
methods were redundant and had been previously deprecated. [**]
- Dropped the DOM Level 2 dependency in DOMConfigurator. This makes
log4j XML configurable using Sun's parser or Apache's Xerces. [*]
- Enhanced the PropertyConfigurator and DOMConfigurator to support
customization of independent Hierarchies. The
org.apache.log4j.net.SocketServer has been enhanced to take
advantage of this functionality. The old code of SocketServer has
been moved to SimpleSocketServer. [**]
- Enhanced the PropertyConfigurator to support variable substitution
for all option *values* (but not keys!). [*]
- Categories are now aware of the Hierarchy they are linked to. This
will provide a basis for several performance enhancements planned
for the future. [*]
- Added support for object rendering. It is now possible to register
an object renderer for a given object type. When the given object
needs to be logged log4j will invoke the corresponding renderer to
transform the object into a String.
As a result of this enhancement, all the String forms of all the
printing methods such as debug(String), info(String) have been
removed as they are no longer necessary. This change should be
perfectly backward compatible. [*]
- Added support for user defined category factories in the
PropertyConfigurator. Thus, it is now possible to configure log4j
with a properties file and still use custom Category
sub-classes. The DOMConfigurator had already a finer grain
support. [*]
- Addeed the SMTPAppender that in case of an error or fatal event
sends an e-mail containing latest N logging events in its buffer,
where N is chosen by the user. [*]
- Added the method getInstance(Class) to the Category class. [*]
- Corrected a bug in configureAndWatch method of configurators that
would configure log4j only after an unnecessary delay. [*]
Best regards, Ceki Gulcu
