<html><head><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Don't get me wrong I know it's good practice to use a surrogate key instead of a natural one, but why does the key need to be a UUID? Seems that it's a bit big and a sequence would do just as nicely. Then we don't need this 'workaround' creating the keys by 'hand'.</div><div><br></div><div>Because the 'workaround' does have a problem, when would we create the id? Hibernate will 'normally' use null as a value for the id to see that it's a new entity and preforms an insert. But maybe hibernate is smart enough, because you could also use primitives for keys although that is not recommended.</div><div><br></div><div>Anyway that is why I suggest let's keep it simple and use a Long for the id</div><div><br></div><div><div>On 7 Nov,2013, at 14:48 , Matthias Wessendorf <<a href="mailto:matzew@apache.org">matzew@apache.org</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div dir="ltr"><br><div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, Nov 7, 2013 at 2:40 PM, Lucas Holmquist <span dir="ltr"><<a href="mailto:lholmqui@redhat.com" target="_blank">lholmqui@redhat.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div style="word-wrap:break-word"><br><div><div class="im">
<div>On Nov 7, 2013, at 7:52 AM, Matthias Wessendorf <<a href="mailto:matzew@apache.org" target="_blank">matzew@apache.org</a>> wrote:</div><br><blockquote type="cite"><div dir="ltr"><br><div class="gmail_extra"><br>
<br><div class="gmail_quote">On Thu, Nov 7, 2013 at 1:20 PM, Erik Jan de Wit <span dir="ltr"><<a href="mailto:edewit@redhat.com" target="_blank">edewit@redhat.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div style="word-wrap:break-word">+1 we can do without the hibernate dependency, making the code more portable. One question it does raise, is why are UUID used as keys? And if a class like <span style="line-height:18px;color:rgb(68,85,136);font-size:12px;white-space:pre-wrap;font-family:Consolas,'Liberation Mono',Courier,monospace;font-weight:bold">PushApplication</span> already has a UUID why would it need another UUID for a key?</div>
</blockquote><div><br></div><div>primaryKey (database)</div><div>variant/pushAPP ID (semantic meaning)</div><div><br></div><div>A while ago we decided to NOT use the PK as the variant/pushAPP ID; let me see if I can find the JIRA/thread</div>
</div></div></div></blockquote><div><br></div></div><div>here is where i brought this up </div><div><a href="http://aerogear-dev.1069024.n5.nabble.com/aerogear-dev-AeroGear-Push-Message-Format-tp2773p2905.html" target="_blank">http://aerogear-dev.1069024.n5.nabble.com/aerogear-dev-AeroGear-Push-Message-Format-tp2773p2905.html</a></div>
<div><div class="h5"><br></div></div></div></div></blockquote><div><br></div><div><a href="https://issues.jboss.org/browse/AGPUSH-86">https://issues.jboss.org/browse/AGPUSH-86</a><br></div><div><br></div><div><br>
</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div style="word-wrap:break-word"><div>
<div class="h5"><div></div><br><blockquote type="cite"><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">
<div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div style="word-wrap:break-word"><br><div>
<div><div>On 7 Nov,2013, at 12:38 , Matthias Wessendorf <<a href="mailto:matzew@apache.org" target="_blank">matzew@apache.org</a>> wrote:</div><br></div><blockquote type="cite"><div>
<div dir="ltr"><div>Hello, <br></div><div><br></div><div>today the PushApplicationID ([1]) and VariantID (iOS example: [2]) are generated w/in the RESTful endpoint class. I'd like to move that into the actual entity - similar to what we today already do with the (master)secret (e.g. [3] or [4]).</div>
<div><br></div><div>Thoughts?</div><div><br></div><div><br></div><div>While on it - I'd like to do similar to the PK all ALL entities... Today we have an (odd) Hibernate dependency (see [5]), simple b/c of JPA being lame and not providing "propper" UUID support.... So idea is to</div>
<div>* remove the odd annotation</div><div>* do the ID generation "by hand" (like we do on the secret (see above...))</div><div><br></div><div>Thoughts?<br></div><div><br></div><div><div>Sure, this (both items of this mail) might lead to some more re-usable code (and better tests)</div>
<div><br></div></div><div><br></div><div>-Matthias</div><div><br></div><div><br></div><div>[1] <a href="https://github.com/aerogear/aerogear-unifiedpush-server/blob/master/src/main/java/org/jboss/aerogear/unifiedpush/rest/registry/applications/PushApplicationEndpoint.java#L76" target="_blank">https://github.com/aerogear/aerogear-unifiedpush-server/blob/master/src/main/java/org/jboss/aerogear/unifiedpush/rest/registry/applications/PushApplicationEndpoint.java#L76</a></div>
<div>[2] <a href="https://github.com/aerogear/aerogear-unifiedpush-server/blob/master/src/main/java/org/jboss/aerogear/unifiedpush/rest/registry/applications/iOSVariantEndpoint.java#L105" target="_blank">https://github.com/aerogear/aerogear-unifiedpush-server/blob/master/src/main/java/org/jboss/aerogear/unifiedpush/rest/registry/applications/iOSVariantEndpoint.java#L105</a></div>
<div>[3] <a href="https://github.com/aerogear/aerogear-unifiedpush-server/blob/master/src/main/java/org/jboss/aerogear/unifiedpush/model/PushApplication.java#L38" target="_blank">https://github.com/aerogear/aerogear-unifiedpush-server/blob/master/src/main/java/org/jboss/aerogear/unifiedpush/model/PushApplication.java#L38</a></div>
<div>[4] <a href="https://github.com/aerogear/aerogear-unifiedpush-server/blob/master/src/main/java/org/jboss/aerogear/unifiedpush/model/AbstractVariant.java#L49" target="_blank">https://github.com/aerogear/aerogear-unifiedpush-server/blob/master/src/main/java/org/jboss/aerogear/unifiedpush/model/AbstractVariant.java#L49</a></div>
<div>[5] <a href="https://github.com/aerogear/aerogear-unifiedpush-server/blob/master/src/main/java/org/jboss/aerogear/unifiedpush/jpa/PersistentObject.java#L34" target="_blank">https://github.com/aerogear/aerogear-unifiedpush-server/blob/master/src/main/java/org/jboss/aerogear/unifiedpush/jpa/PersistentObject.java#L34</a></div>
<div><br></div>-- <br>Matthias Wessendorf <br><br>blog: <a href="http://matthiaswessendorf.wordpress.com/" target="_blank">http://matthiaswessendorf.wordpress.com/</a><br>sessions: <a href="http://www.slideshare.net/mwessendorf" target="_blank">http://www.slideshare.net/mwessendorf</a><br>
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