[infinispan-issues] [JBoss JIRA] Commented: (ISPN-579) JdbcStringBasedCacheStore preloads data using wrong keys (it shouldn't preload)

[Mircea Markus (JIRA)]

    [ https://jira.jboss.org/browse/ISPN-579?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12543671#action_12543671 ] 

Mircea Markus commented on ISPN-579:
------------------------------------

after discussing with Sanne and Manik the following solution is proposed:
- support preload by allowing the users to specify a String to Key mapper as well (currently the Key2StringMapper does it one way)
- this would implement Key2StringMapper and would be called TwoWayKey2StringMapper (following hibernate's search terminology)
- if JdbcStringBasedCacheStore is configured with an Key2StringMapper and preload, then an error is thrown
-  if JdbcStringBasedCacheStore is configured with an TwoWayKey2StringMapper then preload is supported
This way backward compatibility is also supported.

> JdbcStringBasedCacheStore preloads data using wrong keys (it shouldn't preload)
> -------------------------------------------------------------------------------
>
>                 Key: ISPN-579
>                 URL: https://jira.jboss.org/browse/ISPN-579
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Loaders and Stores
>    Affects Versions: 4.1.0.CR2
>            Reporter: Sanne Grinovero
>            Assignee: Mircea Markus
>             Fix For: 4.1.0.CR3, 4.1.0.Final
>
>
> It appears that if I happen to configure a JdbcStringBasedCacheStore using preload=true then cache is preloaded with the values but using the keys in their String form - which is pointless.
> An error should be thrown, like illegal configuration, or a warning logged at runtime while attempting to load from this implementation and ignoring the load request.
> Also documentation is not pointing out this limitation.

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira