Persistent Store


The persistent store changes provided by this package enable automatic
registration of device ids and principals. Both devices and principals are
added on demand meaning at the first time a device is sycnhronizing with
the server it inserts the device id in the persistent store and creates
also a principal that is the association of the user id and the device id.


The design of the persistent store is based on extending the default
Sync4j DS Server persistent store. However, the only thing it does
extra is occuring upon read of the device id are principal in the
persistent store. In the case they requested device id or principal
is not found it is added and read again. The read again is just safety
and needed for some persistent store added data.

In order to use the persistent store you have to execute two steps:
1) install the module as any normal module.
2) edit the config/Sync4j.xml in which you use a different persistent
   store. The change is provided below.

    <void property="store">
     <!-- original value :
         <string>sync4j/server/store/PersistentStoreManager.xml</string>
          required value : -->
     <string>net/lisanza/store/StoreManager.xml</string>
    </void>

You simply need to use the net/lisanza/store/StoreManager.xml



Author: H.Hazewinkel
Copyrights 2006 (c), All rights reserved.