object cache in ojb 1.0 rc4?

[su baochen]

hi,

I am using ojb 1.0 rc4, but have a problem when get a collecction from the 
database(postgresql 7.3). when I call:

broker.beginTransaction();
Collection allProducts = broker.getCollectionByQuery(query);
broker.commitTransaction();
The first time is correct, but wrong with the following operations, always 
return the old collection.

So I modify OJB.properties, using ObjectCacheEmptyImpl instead of 
ObjectCacheDefaultImpl, then everything is ok.

So, is there something wrong with OjbCacheDefaultImpl or my configuration?

BTW, I have set autoCommit="0" in repository_database.xml, I think 
autoCommit is not very good in some situations?

Thanks for your any hints and help!

linuxman

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