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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-767" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-static-newfeature-cbcb67c4-dab3-433e-be1e-0fa0973c1b34" 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-767" style="color: #3b73af; text-decoration: none">OGM-767</a>
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Change By:
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<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="hardy.ferentschik" id="email_hardy.ferentschik" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=hardy.ferentschik" style="color:#6c797f;; color: #3b73af; text-decoration: none">Hardy Ferentschik</a>
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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">The goal is to avoid n+1 loads from the datastore, in particular when an entity A points to a collection of entities B.<br /><br />Loading elements of a *-to-many association. Currently we go to the store for each element. IMO it's actionable on our side; as you say we'd need to adapt the loaders in OGM<br /><br />Batch fetching of *-to-one / *-to-many associations, e.g. when iterating over a result set of an entity with a lazy *-to-one assocation to another entity, load these referenced entities in {{@BatchSize}}-sized chunks; I'm not sure what'd have to be done for that<br /><br />Loading entities of HS query results; Currently we do FIND_BY_ID look-ups as we don't implement the Criteria API. If</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;"> HEARCH</span> <span class="diffaddedchars" style="background-color:#ddfade;"> HSEARCH</span> <span class="diffcontext"> allowed for plugging in custom retrieval strategies, we could implement a more efficient one based on the proposed method (currently one can only choose between {{FIND_BY_ID}} and {{QUERY}}; So this requires some action in HSEARCH first)<br /></span>
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This message was sent by Atlassian JIRA <span id="footer-build-information">(v6.4-OD-15-055#64014-<span title="797c660868dfc4d690d8b76e2560e35770d95524" data-commit-id="797c660868dfc4d690d8b76e2560e35770d95524}">sha1:797c660</span>)</span>
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