[infinispan-issues] [JBoss JIRA] (ISPN-2448) Queries with offset are broken for iteration

[Ales Justin (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-2448?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ales Justin updated ISPN-2448:
------------------------------

    Git Pull Request: https://github.com/infinispan/infinispan/pull/1431

    
> Queries with offset are broken for iteration
> --------------------------------------------
>
>                 Key: ISPN-2448
>                 URL: https://issues.jboss.org/browse/ISPN-2448
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Querying
>    Affects Versions: 5.2.0.Beta2
>            Reporter: Ales Justin
>            Assignee: Sanne Grinovero
>             Fix For: 5.2.0.Beta3
>
>
> The problem is with queries with offset when you iterate over them -- offset is never taken into account.
> There are two possible fixes -- as I see them.
> 1) In HS:
> DocumentExtractorImpl::extract takes into account "firstIndex"
> 	public EntityInfo extract(int scoreDocIndex) throws IOException {
> 		int docId = queryHits.docId( firstIndex + scoreDocIndex );
> 		Document document = extractDocument( fistIndex + scoreDocIndex );
> 2) LazyIterator in Infinispan-Query applies the offset:
>   protected EntityInfo loadEntityInfo(int index) {
>      try {
>         return extractor.extract(extractor.getFirstIndex() + index);
> ---
> Since those methods are exposed in DocumentExtractor,
> I would guess they were meant for external code to use them,
> instead of putting this logic into extractor itself.

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