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From Andrus Adamchik <>
Subject Re: Querymetadata
Date Mon, 16 Apr 2007 12:03:47 GMT
While tweaking QueryMetadata is often useful for custom queries, in  
this case it is not needed. Two most-often used concrete query  
classes, SelectQuery and SQLTemplate, define 'setFetchLimit' method  
and 'setPageSize' method.

More on QueryMetadata... It is intended for Cayenne runtime to make  
sense of an unknown query, not for query configuration. So usually  
each concrete query provides setters for the subset of parameters  
that make sense for this query, and then the query itself generates  
appropriate metadata, hiding many details from the users.


On Apr 16, 2007, at 2:50 PM, jerome moliere wrote:

> Hi all,
> playing around with cayenne, I'd like to set fetching limits and  
> page sizes
> for my queries,
> this seems to be done through QueryMetadata , but this interface  
> does not
> provide any setter ..
> So I'd like to know the proper way for forging its own metadata to  
> be passed
> to the Query to be run...
> I've seen a BaseMutableQueryMetadata class, but I guess I should  
> not be
> obliged to make some uggly donwcasts, isn't it ?
> Is there a way to hook in the Cayenne queries generation mechanism to
> configure the QueryMetaData to be used with my own settings ?
> Did'nt see this, but I may be blind -)
> Thanks for your help
> cheers
> jerome
> -- 
> Jerome Moliere - Mentor/J
> auteur Eyrolles

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