[hibernate-issues] [Hibernate-JIRA] Updated: (HHH-5009) Support NOWAIT for "SELECT ... FOR UPDATE" with JPA interfaces

[Sergey Vladimirov (JIRA)]

     [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-5009?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sergey Vladimirov updated HHH-5009:
-----------------------------------

    Attachment: Entity.java
                NowaitTest.java
                DerbyTestDialect.java

partial test case

> Support NOWAIT for "SELECT ... FOR UPDATE" with JPA interfaces
> --------------------------------------------------------------
>
>                 Key: HHH-5009
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5009
>             Project: Hibernate Core
>          Issue Type: Improvement
>    Affects Versions: 3.5.0-CR-2
>         Environment: Oracle / Derby
>            Reporter: Sergey Vladimirov
>         Attachments: DerbyTestDialect.java, Entity.java, NowaitTest.java
>
>   Original Estimate: 1 day
>  Remaining Estimate: 1 day
>
> Test case description:
>  - DERBY dialect extended to add /* +NOWAIT */ SQL comment to check if it's actually used.
>  - if it's working, log should contain
>  --- "org.hibernate.SQL              DEBUG select entity0_.id as id0_0_, entity0_.value as value0_0_ from entities entity0_ where entity0_.id=? for update with rs /* +NOWAIT */"
>  -- but currently it
>  --- "org.hibernate.SQL              DEBUG select entity0_.id as id0_0_, entity0_.value as value0_0_ from entities entity0_ where entity0_.id=? for update with rs"
> It seems LockOptions (like "javax.persistence.lock.timeout") are lost when converting from JPA to Hibernate. The possible place of error, from my point of view, is loadFromDatasource() (DefaultLoadEventListener:499), where persister is loaded depending only on LockMode without paying attention to lockOptions (including timeout).

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