Return-Path: X-Original-To: apmail-hama-dev-archive@www.apache.org Delivered-To: apmail-hama-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 6F7FDD2B6 for ; Thu, 29 Nov 2012 12:02:07 +0000 (UTC) Received: (qmail 80639 invoked by uid 500); 29 Nov 2012 12:02:07 -0000 Delivered-To: apmail-hama-dev-archive@hama.apache.org Received: (qmail 80463 invoked by uid 500); 29 Nov 2012 12:02:03 -0000 Mailing-List: contact dev-help@hama.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@hama.apache.org Delivered-To: mailing list dev@hama.apache.org Received: (qmail 80428 invoked by uid 99); 29 Nov 2012 12:02:02 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 29 Nov 2012 12:02:02 +0000 X-ASF-Spam-Status: No, hits=1.5 required=5.0 tests=HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of thomas.jungblut@gmail.com designates 209.85.220.175 as permitted sender) Received: from [209.85.220.175] (HELO mail-vc0-f175.google.com) (209.85.220.175) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 29 Nov 2012 12:01:56 +0000 Received: by mail-vc0-f175.google.com with SMTP id m8so11593443vcd.34 for ; Thu, 29 Nov 2012 04:01:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=hfME1G8bakWNiRJcanHmwBuzv5biwYZTH37I1vIo9es=; b=l7uhu1lc2MWd8FzXuQ1hXaIMfrmHV6a5A1G9D2tCh7PMw3LX5z02Bn1M68X5po2AKw G/gOJtjDY8ekziQ6/xOE8C3RdErDaTcJrgFJXiRHgJj9je60f1D8LSDS1rCt2hrD+kBI rgHlj7v1pnSw+/Lgn2pq76sdIbGfSa2lpwByM2qSjRSwak/iXPqgGnLngS4qrs/4/Hnp JJrnaG2WEpy8d0NzGU7HJPj0pczK4WK7E/MbV/rldw7lOMEukKR0Lc/cYMwFQzyhmbZ8 fijp6OAoVjFfHXuQiKu+IrSHJQrMUxtZR4LVxKfDSW/5wxpAflS0Sn9+Y82P5W04BWzO mHBQ== MIME-Version: 1.0 Received: by 10.52.17.70 with SMTP id m6mr25621852vdd.92.1354190496040; Thu, 29 Nov 2012 04:01:36 -0800 (PST) Received: by 10.220.1.201 with HTTP; Thu, 29 Nov 2012 04:01:35 -0800 (PST) In-Reply-To: References: Date: Thu, 29 Nov 2012 13:01:35 +0100 Message-ID: Subject: Re: Can Aggregator store a queue or a map for global communication? From: Thomas Jungblut To: dev@hama.apache.org Content-Type: multipart/alternative; boundary=bcaec501c0cc79863304cfa10b07 X-Virus-Checked: Checked by ClamAV on apache.org --bcaec501c0cc79863304cfa10b07 Content-Type: text/plain; charset=ISO-8859-1 Yes, if they are Writable and are part of your vertex message or value type. You may want to have a look at MapWritable or other serializable collections in the org.apache.hadoop.io package. 2012/11/29 lee fei > Hi, > > I am a newbie to hama,Can Aggregator in graph package store an Arraylist > or a HashMap for some special usages? > > Thank you for you attention~ > --bcaec501c0cc79863304cfa10b07--