Re: [paho-dev] Hi guys

[Ian Craggs <icraggs@xxxxxxxxxxxxxxxxxxxxxxx>]

Hi,

it's a bit difficult to understand your question, so I'll take a guess.

The data persistence is only used for storing intermediate state of messages, not a record of previous publications.  Once a message has been successfully sent or received, it is no longer in the persistent store.

Ian

On 05/11/2015 11:51 PM, neuber sousa wrote:

http://blog.csdn.net/kuailebeihun_/article/details/25245023

i do this tutorial in eclipse kepler and everything is ok. 

Now I'm trying put         String tmpDir = System.getProperty("java.io.tmpdir");

and       final  MqttDefaultFilePersistence dataStore = new MqttDefaultFilePersiste(tmpDir); in this project

and in the server project (i.e.: the server project publish msg(s) to topic "xxx/yyy", with qos = 2)

My questions is: In the first time when I start a java project (in eclipse) , I need read latest post of the topic "xxx/yyy" relative to dataStore file persist.

How to do this ??

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-- 
Ian Craggs                          
icraggs@xxxxxxxxxx                 IBM United Kingdom
Paho Project Lead; Committer on Mosquitto