/** * Helios, OpenSource Monitoring * Brought to you by the Helios Development Group * * Copyright 2007, Helios Development Group and individual contributors * as indicated by the @author tags. See the copyright.txt file in the * distribution for a full listing of individual contributors. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. * */ package org.helios.apmrouter.sentry; /** * <p>Title: CallbackSentryWatched</p> * <p>Description: Defines sentry watched objects that can detect their own state changes</p> * <p>Company: Helios Development Group LLC</p> * @author Whitehead (nwhitehead AT heliosdev DOT org) * <p><code>org.helios.apmrouter.sentry.CallbackSentryWatched</code></p> */ public interface CallbackSentryWatched extends SentryWatched { /** * Directive from the sentry to attempt to re-acquire desired state * @param attempt the sequence number of the attempt to connect * @return If true, sentry will cancel the connect loop, if false, continues connect attempts on the watched specified period */ public boolean connect(int attempt); }