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Date: Thu, 5 Nov 2009 09:13:10 -0800 (PST)
From: Fay Wang <fyw300@yahoo.com>
Subject: Re: version field dont work when used in the embeddable class
To: dev@openjpa.apache.org
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In current openjpa implementation, version field in the embeddable is not s=
upported. The rationale is embeddable is not an identifiable object, it can=
 not be modified independently of its owning entity, so there is no need fo=
r the version field in the embeddable to keep track of its change. Also, un=
like inheritance, the version field in the embeddable is not propogated to =
its owning entity. Think of an example of an entity which has many embeddab=
le fields or a collection of embeddables, if every embeddable has its own v=
ersion field, and if they are all propagated to the owning entity, the owni=
ng entity may end up with multiple version fields. which is not allowed.   =
 =0A=0A=0A=0A=0A----- Original Message ----=0AFrom: "javadiahad@gmail.com" =
<javadiahad@gmail.com>=0ATo: dev@openjpa.apache.org=0ASent: Thu, November 5=
, 2009 12:06:45 AM=0ASubject: version field dont work when used in the embe=
ddable class=0A=0A=0AHi =0AIn my application I have an embeddable class tha=
t contain some common fields=0Aincluding version field .when I put version =
field in the main class=0Aeverything is good and OpenJPA increment the vers=
ion field value and throw=0Aoptimistic exception when concurrent write occu=
r .But when I put the version=0Afield on the embeddable class  openJPA don=
=E2=80=99t do anything. Is this is a bug=0Ain the OpenJPA ? or I am misusin=
g the embeddable class?=0APlease help me=0AThanks=0AAhad Javadi=0A=0A-- =0A=
View this message in context: http://n2.nabble.com/version-field-dont-work-=
when-used-in-the-embeddable-class-tp3950794p3950794.html=0ASent from the Op=
enJPA Developers mailing list archive at Nabble.com.=0A=0A=0A=0A