[hibernate-issues] [Hibernate-JIRA] Created: (HHH-5295) Rendered JPAQL query shall be the same all the times, aliases shall not have random indexes

[Sergey Vladimirov (JIRA)]

Rendered JPAQL query shall be the same all the times, aliases shall not have random indexes
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                 Key: HHH-5295
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5295
             Project: Hibernate Core
          Issue Type: Improvement
          Components: entity-manager
    Affects Versions: 3.5.0-Final
            Reporter: Sergey Vladimirov
            Priority: Trivial


Each time JPAQL query is rendered from CriteriaQuery it has new aliases for table aliases. It should be the same for same CriteriaQuery (or CriteriaQueries that builded in the same way) all the times.

Reason: QueryStructure uses HashSet to store roots.
Solution: replace HashSet with LinkedHashSet:

from
	private Set<Root<?>> roots = new HashSet<Root<?>>();
to
	private Set<Root<?>> roots = new LinkedHashSet<Root<?>>();


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