HSQLDB supports several logging levels, allowing users to control the amount of detail and verbosity in the log messages generated by the database. These logging levels are standard across many logging frameworks and provide a way to categorize log messages based on their severity and importance. Here are the different logging levels supported by
HSQLDB, listed in increasing order of severity :
OFF :
* Disables logging entirely. No log messages are generated at this level.
ERROR :
* Indicates severe errors that require immediate attention.
* Log messages at this level typically represent critical failures or exceptional conditions that may lead to data loss or system instability.
WARN (Warning) :
* Indicates potential problems or abnormal situations that may require attention.
* Log messages at this level typically represent situations where the system is operating normally, but there may be issues or conditions that need to be investigated.
INFO (Informational) :
* Provides general information about the operation of the system.
* Log messages at this level typically include important events, status updates, or milestones in the system's operation.
DEBUG :
* Provides detailed information for debugging and troubleshooting purposes.
* Log messages at this level typically include detailed diagnostic information, method entry and exit points, variable values, and other debugging-related details.
TRACE :
* Provides the most detailed information for troubleshooting and diagnosing issues.
* Log messages at this level typically include extremely detailed diagnostic information, including function calls, variable values, and low-level system interactions.
ALL :
* Enables logging at all levels, including the most verbose and detailed messages.
* Log messages at this level include messages from all other levels, providing comprehensive logging coverage.
