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Subject: RE: maintaining bi-directional relationships
Date: Wed, 7 May 2008 18:44:21 +0200
Message-ID: <12D996978341E849B21C51CC97F4771DB7DDEF@mail3.oams.com>
In-Reply-To: <4821CFC8.1020402@cyberspaceroad.org>
Thread-Topic: maintaining bi-directional relationships
Thread-Index: AciwWiyRg91lp8q9SCe/c+3OkwElvQABzbnA
References: <4821CFC8.1020402@cyberspaceroad.org>
From: "Michael Vorburger" <mvorburger@odyssey-group.com>
To: <users@openjpa.apache.org>

Why=20not=20use=20OpenJPA=20Managed=20Inverses,
http://openjpa.apache.org/docs/latest/manual/ref_guide_inverses.html=20?


-----Original=20Message-----
From:=20Adam=20Hardy=20[mailto:adam.sql@cyberspaceroad.org]=20
Sent:=20mercredi,=207.=20mai=202008=2017:51
To:=20users@openjpa.apache.org
Subject:=20maintaining=20bi-directional=20relationships

This=20is=20a=20design=20question=20really,=20sorry=20it's=20a=20little=20=
OT.

I=20assume=20I=20have=20responsibility=20for=20maintaining=20parent=20-=20=
child
relationships=20reflected=20by=20the=20parent.getChildren=20collection=20a=
nd
child.getParent=20entity=20at=20the=20point=20where=20the=20change=20occur=
s.

Is=20there=20a=20good=20pattern=20to=20implement=20changes=20to=20both=20t=
he=20children
collection=20on=20the=20parent=20and=20the=20parent=20entity=20on=20the=20=
child?

One=20approach:=20setting=20field-access=20on=20the=20entity=20mapping,=20=
and=20adding
code=20to=20the=20setters=20with=20some=20sort=20of=20mechanism=20to=20sto=
p=20infinite
looping.


Thanks=20in=20advance
Adam

____________________________________________________________

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