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<td class="page-title-pattern-first-line " style="padding: 0px; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://hibernate.atlassian.net/browse/OGM" style="color: #3b73af; text-decoration: none">Hibernate OGM</a> / <a href="https://hibernate.atlassian.net/browse/OGM-987" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-50c83bad-677e-4501-b661-2289fac7afa8" height="16" width="16" border="0" align="absmiddle" alt="New Feature" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/OGM-987" style="color: #3b73af; text-decoration: none">OGM-987</a> </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Change By:</th>
<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="davided" id="email_davided" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=davided" style="color:#6c797f;; color: #3b73af; text-decoration: none">Davide D'Alto</a> </td>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0px; border-collapse: collapse; padding: 0 0 10px 0"> <span class="diffcontext">Ideally</span> <span class="diffaddedchars" style="background-color:#ddfade;">,</span> <span class="diffcontext"> we should</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;"> suuport</span> <span class="diffaddedchars" style="background-color:#ddfade;"> support</span> <span class="diffcontext"> this for document</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;"> store</span> <span class="diffaddedchars" style="background-color:#ddfade;"> stores</span> <span class="diffcontext"> in general.<br><br>Some times users need to map this kind of documents:<br>{code}<br>{<br> _id: ObjectId("abc"),<br> userId: "123"<br> experiments: {<br> "experiment1" : {"variantA" : "variantValue1",<br> "variantB", "VariantValue2"<br> "variantC", "VariantValue3"},<br><br> "experiment2" : {"variantD", "VariantValue4"}<br> }<br>}<br>{code}<br><br>Basically, it's the mapping of collection of embeddables with another collection of embeddables.<br><br>The problem is that this mapping is not supported by JPA or Hibernate, we need to find an alternative.<br>Maybe a user could use entities instead of embeddables and with some additional OGM specific annotation or properties the user can specify this mapping.<br></span> </td>
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