Return-Path: X-Original-To: apmail-activemq-dev-archive@www.apache.org Delivered-To: apmail-activemq-dev-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 0EF184994 for ; Wed, 25 May 2011 08:00:47 +0000 (UTC) Received: (qmail 61128 invoked by uid 500); 25 May 2011 08:00:46 -0000 Delivered-To: apmail-activemq-dev-archive@activemq.apache.org Received: (qmail 60896 invoked by uid 500); 25 May 2011 08:00:42 -0000 Mailing-List: contact dev-help@activemq.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@activemq.apache.org Delivered-To: mailing list dev@activemq.apache.org Received: (qmail 60883 invoked by uid 99); 25 May 2011 08:00:41 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 25 May 2011 08:00:41 +0000 X-ASF-Spam-Status: No, hits=-1.6 required=5.0 tests=RCVD_IN_DNSWL_MED,SPF_NEUTRAL X-Spam-Check-By: apache.org Received-SPF: neutral (nike.apache.org: local policy) Received: from [137.138.144.182] (HELO CERNMX34.cern.ch) (137.138.144.182) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 25 May 2011 08:00:32 +0000 Received: from mercury.cern.ch (137.138.171.43) by cernmxlb2.cern.ch (137.138.144.184) with Microsoft SMTP Server (TLS) id 14.1.270.1; Wed, 25 May 2011 10:00:10 +0200 Received: from mercury.cern.ch (localhost [127.0.0.1]) by mercury.cern.ch (8.14.4/8.14.4) with ESMTP id p4P807SO000700; Wed, 25 May 2011 10:00:07 +0200 Received: (from cons@localhost) by mercury.cern.ch (8.14.4/8.14.4/Submit) id p4P807VH000695; Wed, 25 May 2011 10:00:07 +0200 Date: Wed, 25 May 2011 10:00:07 +0200 From: Lionel Cons To: Hiram Chirino CC: Subject: Apollo's durable subscriptions versus ActiveMQ's virtual destinations Message-ID: <20110525094537.ae1d.abe10f7e5afbbb3a79ce619739541149@cern.ch> MIME-Version: 1.0 Content-Type: text/plain X-Virus-Checked: Checked by ClamAV on apache.org Hiram, Apollo's durable subscriptions and ActiveMQ's virtual destinations both allow to create a kind of composite object behaving like a topic and a set of independent backing queues. We can imagine cases where you want to inject messages directly in one of the backing queues. For instance, when restoring messages from a backup or a from a dead broker (using ad-hoc tools). AFAIK, you can do this in ActiveMQ (by sending the messages directly to /queue/Consumer.X.VirtualTopic.Y) but not in Apollo. Is this a limitation that you plan to remove? Cheers, Lionel