[logback-user] decorating an Appender with additional behavior ?

Hello, which is the preferred way to decorate an Appender with additional behavior ? Optimally, the new behavior should be applicable to any Appender. As an example consider the Cyclic Queue behavior of the SMPTAppender. A CyclicQueueAppender could implement this feature and delegate calls to a referenced concrete Appender, such that the feature can be utilized in other (non-SMTP) scenarios as well. Also (if currently possible) the Decorator should be configured declaratively within a configuration file. kind regards, Andreas