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FW: Re: [eclipselink-users] Use of eclipselink hinting
Ok, i removed all the hinting, and join fetches as such but again, the only table that fields were selected from was the main (Task) table

        StringBuilder sb = new StringBuilder("select distinct t from Task t");
        sb.append(" inner join t.taskrsrcCollection tr");
        sb.append(" inner join tr.rsrchourCollection rh");
        sb.append(" inner join tr.resource r");
        sb.append(" inner join rh.timesheetPeriod tp");
        sb.append(" inner join t.project p");
        sb.append(" where p.origProjId is null");
        sb.append(" and t.projectWBS.statusCode = ?1");
        sb.append(" and r.resourceId = ?2");
        sb.append(" and tp.timesheetPeriodId = ?3");

        Query query = getEntityManager().createQuery(sb.toString());
        query.setParameter(1, ProjectWBSStatus.WS_Open);
        query.setParameter(2, resourceId);
        query.setParameter(3, timesheetId);
        //query.setHint(QueryHints.FETCH, "t.project");
        //query.setHint(QueryHints.FETCH, "t.taskrsrcCollection");
        //query.setHint(QueryHints.FETCH, "t.taskrsrcCollection.resource");       
        //query.setHint(QueryHints.FETCH, "t.taskrsrcCollection.role");
        //query.setHint(QueryHints.FETCH, "t.projectWBS");       
        //query.setHint(QueryHints.FETCH, "t.projectWBS.obs");
        results.addAll(query.getResultList());


SELECT DISTINCT t1.TASK_ID, t1.RSRC_ID, t1.ACT_END_DATE, t1.TASK_CODE, t1.TASK_NAME, t1.REVIEW_TYPE, t1.STATUS_CODE, t1.TASK_TYPE, t1.ACT_START_DATE, t1.RESTART_DATE, t1.REEND_DATE, t1.REVIEW_END_DATE, t1.TARGET_START_DATE, t1.TARGET_END_DATE, t1.EXPECT_END_DATE, t1.PRIORITY_TYPE, t1.DURATION_TYPE, t1.TOTAL_FLOAT_HR_CNT, t1.TARGET_DRTN_HR_CNT, t1.COMPLETE_PCT_TYPE, t1.SUSPEND_DATE, t1.RESUME_DATE, t1.ACT_WORK_QTY, t1.ACT_EQUIP_QTY, t1.TARGET_WORK_QTY, t1.TARGET_EQUIP_QTY, t1.REMAIN_DRTN_HR_CNT, t1.REMAIN_WORK_QTY, t1.EST_WT, t1.LATE_END_DATE, t1.REM_LATE_END_DATE, t1.FREE_FLOAT_HR_CNT, t1.REV_FDBK_FLAG, t1.EARLY_START_DATE, t1.EARLY_END_DATE, t1.REM_LATE_START_DATE, t1.PHYS_COMPLETE_PCT, t1.LATE_START_DATE, t1.REMAIN_EQUIP_QTY, t1.WBS_ID, t1.PROJ_ID, t1.CLNDR_ID FROM RSRCHOUR t6, TSDATES t5, TASKRSRC t4, RSRC t3, PROJWBS t2, TASK t1, PROJECT t0 WHERE (((((t0.ORIG_PROJ_ID IS NULL) AND (t2.STATUS_CODE = ?)) AND (t3.RSRC_ID = ?)) AND (t5.TS_ID = ?)) AND ((((((t0.PROJ_ID = t1.PROJ_ID) AND (t2.WBS_ID = t1.WBS_ID)) AND (t4.TASK_ID = t1.TASK_ID)) AND (t3.RSRC_ID = t4.RSRC_ID)) AND (t6.TASKRSRC_ID = t4.TASKRSRC_ID)) AND (t5.TS_ID = t6.TS_ID)))
    bind => [WS_Open, 98984, 20081221]
-----Original Message-----
From: "Dave Brosius" <dbrosius@xxxxxxxxxxxxxxx>
Sent: Monday, February 2, 2009 12:44pm
To: "EclipseLink User Discussions" <eclipselink-users@xxxxxxxxxxx>
Subject: Re: [eclipselink-users] Use of eclipselink hinting

I am using version 1.02.

I will experiment with simplifying the hints used and see what happens

-----Original Message-----
From: "James Sutherland" <jamesssss@xxxxxxxxx>
Sent: Monday, February 2, 2009 11:10am
To: eclipselink-users@xxxxxxxxxxx
Subject: Re: [eclipselink-users] Use of eclipselink hinting


That is odd. I can't see any reason for this to occur. What version of
EclipseLink are you using?

It may be somehow related to the mixing of join fetch in the JPQL and the
other hints. If you remove the other hints, or simplify the JPQL (remove
the inner joins), does it work?



Dave Brosius-2 wrote:
>
> Here's the code. I have commented out the hint for t.project, but notice i
> have a join fetch on t.project.
>
> List results = new ArrayList();
> StringBuilder sb = new StringBuilder("select distinct t from Task
> t");
> sb.append(" inner join t.taskrsrcCollection tr");
> sb.append(" inner join tr.rsrchourCollection rh");
> sb.append(" inner join tr.resource r");
> sb.append(" inner join rh.timesheetPeriod tp");
> sb.append(" join fetch t.project");
> sb.append(" where t.project.origProjId is null");
> sb.append(" and t.projectWBS.statusCode = ?1");
> sb.append(" and r.resourceId = ?2");
> sb.append(" and tp.timesheetPeriodId = ?3");
>
> Query query = getEntityManager().createQuery(sb.toString());
> query.setParameter(1, ProjectWBSStatus.WS_Open);
> query.setParameter(2, resourceId);
> query.setParameter(3, timesheetId);
> //query.setHint(QueryHints.FETCH, "t.project");
> query.setHint(QueryHints.FETCH, "t.taskrsrcCollection");
> query.setHint(QueryHints.FETCH, "t.projectWBS");
> query.setHint(QueryHints.FETCH, "t.projectWBS.obs");
> results.addAll(query.getResultList());
>
> Here is the query. Notice no fields for project (t4) are loaded. (When i
> put the setHint back in fields on project are loaded)
>
> SELECT DISTINCT t1.TASK_ID, t1.RSRC_ID, t1.ACT_END_DATE, t1.TASK_CODE,
> t1.TASK_NAME, t1.REVIEW_TYPE, t1.STATUS_CODE, t1.TASK_TYPE,
> t1.ACT_START_DATE, t1.RESTART_DATE, t1.REEND_DATE, t1.REVIEW_END_DATE,
> t1.TARGET_START_DATE, t1.TARGET_END_DATE, t1.EXPECT_END_DATE,
> t1.PRIORITY_TYPE, t1.DURATION_TYPE, t1.TOTAL_FLOAT_HR_CNT,
> t1.TARGET_DRTN_HR_CNT, t1.COMPLETE_PCT_TYPE, t1.SUSPEND_DATE,
> t1.RESUME_DATE, t1.ACT_WORK_QTY, t1.ACT_EQUIP_QTY, t1.TARGET_WORK_QTY,
> t1.TARGET_EQUIP_QTY, t1.REMAIN_DRTN_HR_CNT, t1.REMAIN_WORK_QTY, t1.EST_WT,
> t1.LATE_END_DATE, t1.REM_LATE_END_DATE, t1.FREE_FLOAT_HR_CNT,
> t1.REV_FDBK_FLAG, t1.EARLY_START_DATE, t1.EARLY_END_DATE,
> t1.REM_LATE_START_DATE, t1.PHYS_COMPLETE_PCT, t1.LATE_START_DATE,
> t1.REMAIN_EQUIP_QTY, t1.PROJ_ID, t1.CLNDR_ID, t1.WBS_ID, t0.TASKRSRC_ID,
> t0.TASK_ID, t0.RSRC_ID, t0.ACT_END_DATE, t0.PEND_COMPLETE_PCT,
> t0.PEND_REMAIN_QTY, t0.PEND_ACT_OT_QTY, t0.PEND_ACT_REG_QTY,
> t0.ACT_START_DATE, t0.RESTART_DATE, t0.REEND_DATE, t0.ACT_REG_QTY,
> t0.ACT_OT_QTY, t0.TARGET_QTY, t0.RELAG_DRTN_HR_CNT, t0.REMAIN_QTY_PER_HR,
> t0.REMAIN_QTY, t0.TARGET_START_DATE, t0.TARGET_END_DATE, t0.ACTUAL_CRV,
> t0.REMAIN_CRV, t0.TARGET_LAG_DRTN_HR_CNT, t0.TARGET_QTY_PER_HR,
> t0.TARGET_COST, t0.ACCT_ID, t0.OT_FACTOR, t0.GUID, t0.CURV_ID,
> t0.TS_PEND_ACT_END_FLAG, t0.COST_QTY_LINK_FLAG, t0.RSRC_TYPE,
> t0.COST_PER_QTY, t0.ACT_OT_COST, t0.ACT_REG_COST, t0.REMAIN_COST,
> t0.POBS_ID, t0.ROLLUP_DATES_FLAG, t0.PROJ_ID, t0.ROLE_ID, t2.WBS_ID,
> t2.PROJ_ID, t2.WBS_NAME, t2.STATUS_CODE, t2.SEQ_NUM, t2.WBS_SHORT_NAME,
> t2.PROJ_NODE_FLAG, t2.EST_WT, t2.OBS_ID, t2.PARENT_WBS_ID, t3.OBS_ID,
> t3.SEQ_NUM, t3.OBS_NAME FROM RSRCHOUR t8, TSDATES t7, TASKRSRC t6, RSRC
> t5, PROJECT t4, OBS t3, PROJWBS t2, TASK t1, TASKRSRC t0 WHERE
> (((((t4.ORIG_PROJ_ID IS NULL) AND (t2.STATUS_CODE = ?)) AND (t5.RSRC_ID =
> ?)) AND (t7.TS_ID = ?)) AND ((((((((t4.PROJ_ID = t1.PROJ_ID) AND
> (t2.WBS_ID = t1.WBS_ID)) AND (t6.TASK_ID = t1.TASK_ID)) AND (t5.RSRC_ID =
> t6.RSRC_ID)) AND (t8.TASKRSRC_ID = t6.TASKRSRC_ID)) AND (t7.TS_ID =
> t8.TS_ID)) AND (t0.TASK_ID = t1.TASK_ID)) AND (t3.OBS_ID = t2.OBS_ID)))
> bind => [WS_Open, 5654, 792]
>
>
> -----Original Message-----
> From: "James Sutherland"
> Sent: Thursday, January 29, 2009 10:58am
> To: eclipselink-users@xxxxxxxxxxx
> Subject: Re: [eclipselink-users] Use of eclipselink hinting
>
>
> Using "JOIN FETCH" in JPQL should work, the hint is only required for
> nested
> join fetchs which are not part of the JPQL spec.
>
> Please include your full query code and JPQL and the SQL generated for it.
>
>
>
> Dave Brosius-2 wrote:
>>
>> Greetings, i've noticed that for my queries that specify join fetches,
>> EclipseLink doesn't actually do the join fetch. I then noticed the
>> specification to do
>>
>> query.setHint("eclipselink.join-fetch", "t.project");
>>
>> and that does, indeed, cause a join fetch.
>>
>> Am I to understand that specifying 'join fetch' by itself in queries does
>> nothing in eclipse link and i must use the hinting as above?
>>
>>
>
>


-----
---
http://wiki.eclipse.org/User:James.sutherland.oracle.com James Sutherland
http://www.eclipse.org/eclipselink/
EclipseLink , http://www.oracle.com/technology/products/ias/toplink/
TopLink
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Forums: http://forums.oracle.com/forums/forum.jspa?forumID=48 TopLink ,
http://www.nabble.com/EclipseLink-f26430.html EclipseLink
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