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Log4j

Log4J Support Objects

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by , 07-07-2012 at 07:37 PM (2268 Views)
Following are the log4j framework important support objects which are critical in this framework.

Level Object: This object is used to define priority of log information. Following log levels are defined in the log4j API:
o INFO
o DEBUG
o ERROR
o OFF
o FATAL
o WARN
o ALL

Filet Object: This object is used to filter and analyze the logging information. Based on the analysis and filter criteria, logging information is logged. Multiple filter objects are attached with the appended object. All these associated filter objects with the appender object must pass the log information so that it can be published.

ObjectRenderer: The logging framework gets different objects string representations using this ObjectRenderer object. The Laout objects used this ObjectRenderer object to arrange log information.

LogManager: The LogManager reads the configuration parameters at the startup from a class of file and manage loging framework.

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