[Modeling-users] Lazy Initialization Part 2

[Yannick G. <yan...@sa...>]

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Hi,=20

I have a particular record set that hold 700 or so rows.  I use
dynamic i18n from another table that we will call i18nTable for
simplicity.  There is only a few fields in i18nTable : title and
description. =20

The relation look like this :=20

   <relation displayLabel=3D''=20
             joinSemantic=3D'0'=20
             name=3D'i18ns'=20
             destinationEntity=3D'i18nTable'=20
             multiplicityLowerBound=3D'0'=20
             multiplicityUpperBound=3D'-1'=20
             isClassProperty=3D'1'=20
             deleteRule=3D'0'>
      <join sourceAttribute=3D'id' destinationAttribute=3D'masterId' />
    </relation>

So here I am trying to fetch my whole record set.  The initial fetch
is really fast but when I try to getI18ns() on each fetched object it
result in a SQL SELECT.  This mean that do 701 SELECTs where I
intended to do only one...  My whole fetch take 30 seconds to complete
but the initial fetch (the master records with lots of columns) take
barely a second.  It would be really nice if I could group the fetch so
that it resulted in a single SQL select (ok, maybe 2 : one for master
records, one for all the i18ns).

I understand why you really want lazy initialization.  It's would be
even slower to fetch all the database when you fetch an object with
many relations.  But having it optional, something like a
recursiveFecth() would be really nice.

So my question is : Is it possible to do so ?

BTW The trick with FixedPoint works really well, tanks for the hints !

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Yannick Gingras
Byte Gardener, Savoir-faire Linux inc.
(514) 276-5468

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