package org.jgroups; /** * Provides a hook to hijack over all events received by a certain channel which has installed this * UpHandler. * <p> * Client usually never need to implement this interface and it is mostly used by JGroups building * blocks. * * @since 2.0 * @author Bela Ban */ public interface UpHandler { /** * Invoked for all channel events except connection management and state transfer. * * @param evt */ Object up(Event evt); }