[hibernate-issues] [Hibernate-JIRA] Created: (HSEARCH-546) ProjectionLoader ignores FetchMode.JOIN set via a Criteria

[Hardy Ferentschik (JIRA)]

ProjectionLoader ignores FetchMode.JOIN set via a Criteria
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                 Key: HSEARCH-546
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-546
             Project: Hibernate Search
          Issue Type: Bug
          Components: engine
    Affects Versions: 3.2.0.Final
            Reporter: Hardy Ferentschik
             Fix For: 3.3.0


Hibernate Search allows you to optimize the fetching strategy for association by setting an optional {{Criteria}}:
{code}
Criteria fetchingStrategy = fullTextSession.createCriteria(Foo.class);
fetchingStrategy.setFetchMode("foos", FetchMode.JOIN);
fullTextQuery.setCriteriaQuery(fetchingStrategy);
{code}

This works fine for normal queries, however, in the case of projection queries and the use of {{FullTextQuery.THIS}} the fetch mode gets ignored. This is due to the fact that the {{ProjectionLoader}} internally uses {{MultiClassesQueryLoader}} in case {{FullTextQuery.THIS}} is projected. The logic from {{FullTextQueryImpl}} deciding which entity loader to use should really also be used within {{ProjectionLoader}}.

See also {{FullTextQueryImpl.getLoader}}

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