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Re: [eclipselink-users] Difference between cache-usage and maintain-cache query hints?
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https://bugs.eclipse.org/bugs/show_bug.cgi?id=340309
Laird Nelson wrote:
Might I suggest this query hint be documented on the same page as the
other query hints? I really had to chase this one down, and frankly
don't remember where I found it.
Thanks,
L
On Thu, Mar 17, 2011 at 10:14 AM, Tom Ware <tom.ware@xxxxxxxxxx
<mailto:tom.ware@xxxxxxxxxx>> wrote:
Correct.
Laird Nelson wrote:
On Thu, Mar 17, 2011 at 9:53 AM, Tom Ware <tom.ware@xxxxxxxxxx
<mailto:tom.ware@xxxxxxxxxx> <mailto:tom.ware@xxxxxxxxxx
<mailto:tom.ware@xxxxxxxxxx>>> wrote:
The query results cache query hint is not quite the same. You
should only use this query hint for absolutely static data. When
you use a query-results-cache, the database will only be hit
once.
Every time you use the query it will return the same results
as the
first usage.
Which, for U. S. state data, is exactly what I want. So it
sounds like for this relatively simple use case (state data,
gender tables, other things that are used basically only to
validate foreign keys), query-results-cache is what I want.
(Yes? he asked, somewhat nervously.)
L
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