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https://issues.apache.org/jira/browse/OPENJPA-780?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pinaki Poddar updated OPENJPA-780:
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Component/s: (was: jdbc)
slice
> code review for DistributedStoreManager
> ---------------------------------------
>
> Key: OPENJPA-780
> URL: https://issues.apache.org/jira/browse/OPENJPA-780
> Project: OpenJPA
> Issue Type: Improvement
> Components: slice
> Affects Versions: 1.2.0
> Reporter: Fernando
> Assignee: Pinaki Poddar
> Priority: Minor
> Fix For: 1.3.0, 2.0.0
>
>
> I am currently reviewing code, and this one piece of code stood out. It
> might not be a bad thing, but it just has a "funny smell". This is in
> DistributedStoreManager. There it gets a String[], which it then iterates
> over it to find an appropriate slice. But it looks like it either finds a
> slice and returns it, or finds a null and throws an exception, all on the
> first step of the for loop. So really, there is no for loop at all. This
> might be on purpose, but the code is just not as legible..
> ORIGINAL
> /**
> * Selects child StoreManager(s) where the given instance resides.
> */
> private StoreManager selectStore(OpenJPAStateManager sm, Object edata) {
> String[] targets = findSliceNames(sm, edata);
> for (String target : targets) {
> SliceStoreManager slice = lookup(target);
> if (slice == null)
> throw new InternalException(_loc.get("wrong-slice",
> target, sm));
> return slice;
> }
> return null;
> }
> expecting more like:
> String[] targets = ....
> if ( targets == null || targets.length == 0 ) {
> return null;
> }
> SliceStoreManager slice = lookup(targets[0]);
> if (slice == null) {
> throw new InternalException(_loc.get("wrong-slice", target, sm));
> }
> return slice;
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