Module design_pattern_examples_rust::bridge

The Bridge design pattern example module

In this example, the Bridge pattern is used to allow a program to offer multiple ways to perform logging without changing how the logging is used throughout the program.

Take note of how the calls into the logger are the same regardless of the logger used.

Accessed through the bridge_exercise() function.

Modules

• bridge_consolelogger
  Contains the ConsoleLogger implementation.
• bridge_filelogger
  Contains the FileLogger implementation.
• bridge_ilogger_trait
  Contains the ILogger trait that loggers can implement.
• bridge_logger
  Contains the LoggerType enumeration and the create_logger() factory function for instantiating specific kinds of loggers that implement the ILogger trait.
• bridge_loghelper
  Contains the loghelper_formatlogline() function for formatting a complete line to be written to a log.
• bridge_nulllogger
  Contains the NullLogger implementation.

Functions

• _bridge_exercise_demonstrate_logging 🔒
  Helper function to show an example of writing to a logger.
• bridge_exercise
  Example of using the “Bridge” pattern.