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From Drew Mazurek <d...@veoci.com>
Subject Re: Delta-Import not loading child entities?
Date Fri, 13 Jun 2014 20:37:25 GMT
Sure... here's the document stanza, simplified:

    <document name="object">
        <entity name="object" pk="object_id" query="SELECT
o.object_id,o.object_name,
        CAST(p.profile_id AS CHAR) AS owner_profile_id
                FROM `objects` o
                JOIN containers c on c.container_id=o.container_id
                LEFT JOIN profiles p on o.created_by=p.user_id AND
c.org_id=p.org_id
                WHERE o.object_type in (2,3)"

            deltaQuery="select object_id from objects o where o.object_type
in (2,3)
                AND o.date_modified &gt; '${dataimporter.last_index_time}'"

            deltaImportQuery="SELECT o.object_id,o.object_name,
        CAST(p.profile_id AS CHAR) AS owner_profile_id
                FROM `objects` o
                JOIN containers c on c.container_id=o.container_id
                LEFT JOIN profiles p on o.created_by=p.user_id AND
c.org_id=p.org_id
                WHERE o.object_id=${dataimporter.delta.object_id}">

            <entity name="profile" pk="profile_id"
cacheImpl="SortedMapBackedCache"
            where="profile_id=object.owner_profile_id"

                query="select CAST(profile_id AS CHAR) AS profile_id,
                  user_id as owner_id,first_name as owner_first_name,
                    last_name as owner_last_name,preferred_name as
owner_preferred_name
                    from profiles"

                deltaQuery="select profile_id,user_id from profiles where
date_modified &gt; '${dataimporter.last_index_time}'"

                parentDeltaQuery="select object_id from objects where
created_by='${profile.owner_id}'"/>
        </entity>
    </document>


In the log, I'm seeing the "profile" deltaQuery run (which in testing is
correctly returning 0 records), and then the "object" deltaQuery runs,
which returns 1 record.  Then it logs that the delta import is complete,
but it never calls any SQL related to the profile entity.

One thing to note, if you're wondering... the CASTs are required because it
seems the SortedMapBackedCache wants Strings for keys.  In the database, my
keys are MySQL BIGINTs.  Without the casts, Java ClassCastExceptions are
thrown on import.

Thanks,
Drew





On Fri, Jun 13, 2014 at 3:37 PM, Gora Mohanty <gora@mimirtech.com> wrote:

> On 14 June 2014 00:36, Drew Mazurek <drew@veoci.com> wrote:
> >
> > A little more info... removing the cache fixes everything.  Are delta
> > queries incompatible with the cache?  There isn't a lot of current
> > documentation on this, far as I can tell.
>
> Not quite au courant myself with 4.8.1 (need to install new Jave
> somewhere),
> but it would help to post your DIH configuration file.
>
> Regards,
> Gora
>

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