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From "Simon Droscher (JIRA)" <j...@apache.org>
Subject [jira] Commented: (OPENJPA-1205) Cannot retrieve Map<PersistenceCapable, PersistenceCapable> fields when DataCache is on
Date Mon, 22 Mar 2010 22:23:27 GMT

    [ https://issues.apache.org/jira/browse/OPENJPA-1205?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12848395#action_12848395
] 

Simon Droscher commented on OPENJPA-1205:
-----------------------------------------

The fix in OPENJPA-1232 is essentially the same change as that in my patch to this issue.
So yes, it does appear to resolve this issue.

> Cannot retrieve Map<PersistenceCapable, PersistenceCapable> fields when DataCache
is on
> ---------------------------------------------------------------------------------------
>
>                 Key: OPENJPA-1205
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1205
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: datacache
>    Affects Versions: 1.2.1
>            Reporter: Simon Droscher
>         Attachments: EntityToEntityMapFix.patch
>
>
> Consider the following mapping, which uses a Map of a PC class to another PC class:
> @OneToMany(targetEntity = CatalogProductPriceImpl.class, cascade = { CascadeType.ALL
})
> @MapKey(name = "catalog")
> public Map<Catalog, CatalogPrice> getCatalogPrices() {
>   return catalogPrices;
> }
> With the DataCache on, when a product is retrieved for the first time, this map will
be correct. However, the next time it is retrieved (i.e. from the cache), what is returned
is a Map<LongId, CatalogPrice> not the expected Map<Catalog, CatalogPrice>.
> The attached patch resolves this issue.

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