# Package ch.qos.logback.core.sift

Interface Summary
AppenderFactory<E>: Created with IntelliJ IDEA.
Discriminator<E>: Implement this interface in order to compute a discriminating value for a given event of type <E>.

Class Summary
AbstractAppenderFactoryUsingJoran<E>: Builds new appenders dynamically by running SiftingJoranConfigurator instance, a custom configurator tailored for the contents of the sift element.
AbstractDiscriminator<E>: Base implementation of `Discriminator` that provides basic lifecycle management
AppenderTracker<E>: Track appenders by key.
DefaultDiscriminator<E>
SiftingAppenderBase<E>: This appender serves as the base class for actual SiftingAppenders implemented by the logback-classic and logback-access modules.
SiftingJoranConfiguratorBase<E>