Re: Filtering array returned by an EO's relationship (D2J)
Re: Filtering array returned by an EO's relationship (D2J)
- Subject: Re: Filtering array returned by an EO's relationship (D2J)
- From: Ricardo Strausz <email@hidden>
- Date: Tue, 28 Oct 2003 12:34:28 -0600
Did you try dataSource.setAuxiliaryQualifier(aQualifier);
On lunes, octu 27, 2003, at 00:25 America/Mexico_City, Ray Ackland
wrote:
My database holds some main, stable entities, which are related to
some continually updated trivial entities. Specifically staff members
and time sheet records.
Currently the staff member can view their existing time records, but
this returns '000s of them so is slow to process as well as providing
too much information. I am trying to find a way that I can filter
these to just the last n records (the last week say, or the last 20
entries).
I can do this by getting the array returned by the storedValueForKey()
method, and doing an in-memory filteredArrayWithQualifier() to limit
the results. But this would require the complete array to be sent to
the client first.
I also imagine I can invoke a server side method to return the
filtered array. But is there a "simple" way to return just the
selection I want? I know I could use a fetch specification using the
desired qualifier, but will that relate the returned objects to the
entity I am calling it from, hence avoiding death and destruction for
the rest of my programme?
Ray.
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