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From con <convo...@gmail.com>
Subject RE: How to select one entity at a time?
Date Wed, 01 Oct 2008 09:54:24 GMT

And finally its almost fine.. :jumping: :jumping: :jumping:
Thanks Burnell.

My tables are in Oracle DB.
So based on your suggestions the changes made are:
1) In the data-config.xml,
    <entity name="user" transformer="TemplateTransformer"  query="select *
from USER"> 
        <field column="rowtype" template="user" /> 
    </entity>
   <entity name="manager" transformer="TemplateTransformer"  query="select *
from MANAGER"> 
        <field column="rowtype" template="user" /> 
    </entity>

2) In schema.xml
    <field name="rowtype" type="string" indexed="true" stored="true"
required="true" /> 

And when I call http://localhost:8983/solr/select/?q=(bob AND
rowtype:user)&version=2.2&start=0&rows=10&indent=on
only the user entity's values are returned and if I use manager, only the
manager's values will be returned...
It almost solved my issues.(95%).

But I am struck at one point.
In the data-config.xml I have an entry like,

    <entity name="both" transformer="TemplateTransformer"  query="select *
from USER , MANAGER where USER.userID = MANAGER.userID "> 
        <field column="rowtype" template="both" /> 
    </entity>
when i try to search like, http://localhost:8983/solr/select/?q=(150 AND
rowtype:both)&version=2.2&start=0&rows=10&indent=on
will return zero responces. 
At the same time if I run
http://localhost:8983/solr/select/?q=150&version=2.2&start=0&rows=10&indent=on

It will get values from both USER and MANAGER satisfying the condition.
Is there any difference in applying transformer in such type of queries.

Once again,
Thanks a lot:handshake:

Expecting reply
con









Neville Burnell wrote:
> 
> BTW, You will also need to configure your schema.xml to index [and store?]
> the rowtype attribute:
> 
>    <field name="rowtype" type="string" indexed="true" stored="true"
> required="true" />
> 
> Or alternatively change rowtype to be say rowtype_s to take advantage of
> Solr's dynamic field definitions.
> 
>> -----Original Message-----
>> From: Neville Burnell [mailto:Neville.Burnell@bmsoft.com.au]
>> Sent: Wednesday, 1 October 2008 6:06 PM
>> To: solr-user@lucene.apache.org
>> Subject: RE: How to select one entity at a time?
>> 
>> Hi Con,
>> 
>> what RDBMS are you using?
>> 
>> This looks like a SQL syntax problem, perhaps the 'literal as column'
>> is not right for your setup [while it works for my MS SQL Server].
>> 
>> An alternative to supplying the "rowtype" attribute as a literal in the
>> SQL clause is to use a Solr DIH Template Transformer
>> http://wiki.apache.org/solr/DataImportHandler#transformer
>> 
>> This should allow you to keep the working SQL. For example
>> 
>> <entity name="user" transformer="TemplateTransformer" query="select *
>> from USER">
>> 	<field column="rowtype" template="user" />
>> </entity>
>> 
>> 
>> > -----Original Message-----
>> > From: con [mailto:convoyer@gmail.com]
>> > Sent: Wednesday, 1 October 2008 5:48 PM
>> > To: solr-user@lucene.apache.org
>> > Subject: RE: How to select one entity at a time?
>> >
>> >
>> > That is exactly what my problem is.:handshake:
>> > Thanks for you reply.
>> >
>> > But I tried your suggestion:
>> > Updated the data-config.xml as;
>> >
>> > <entity name="user" query="select 'user' as rowtype, * from
>> > USER"></entity>
>> > <entity name="manager" query="select 'manager' as rowtype, * from
>> > MANAGERS"></entity>
>> >
>> > But when I perform the full import itself, it is throwing exception,
>> >
>> >    SEVERE: Exception while processing: user document :
>> > SolrInputDocumnt[{}]
>> >     org.apache.solr.handler.dataimport.DataImportHandlerException:
>> > Unable to
>> > execute
>> >     query: select 'user' as rowtype,* from USER Processing Document #
>> 1
>> >     .......
>> > So, as expected, when I go to search it is giving- undefined field
>> > rowtype-
>> > error.!!!
>> > Do I need to update any other files or fields?
>> >
>> > I am happy that it worked for you...:jumping::jumping:
>> > Looking forward for your reply
>> > Thanks
>> > con
>> >
>> >
>> >
>> >
>> > Neville Burnell wrote:
>> > >
>> > > Hi,
>> > >
>> > >> But while performing a search, if I want to search only the data
>> > from
>> > >> USER table, how can I acheive it.
>> > >
>> > > In my app+solr index, we solved this problem by "tagging" entities
>> > with a
>> > > "rowtype" attribute, something like this:
>> > >
>> > > <entity name="user" query="select 'user' as rowtype, * from
>> > > USER"></entity>
>> > > <entity name="manager" query="select 'manager' as rowtype, * from
>> > > MANAGERS"></entity>
>> > >
>> > > Then your 'users' only query becomes something like:
>> > >
>> > > http://localhost:8983/solr/select/?q=(bob AND
>> > > rowtype:user)&version=2.2&start=0&rows=10&indent=on&wt=json
>> > >
>> > > Hope this helps
>> > >
>> > >
>> > >
>> > >> -----Original Message-----
>> > >> From: con [mailto:convoyer@gmail.com]
>> > >> Sent: Wednesday, 1 October 2008 4:54 PM
>> > >> To: solr-user@lucene.apache.org
>> > >> Subject: Re: How to select one entity at a time?
>> > >>
>> > >>
>> > >> Of course I agree.
>> > >> But while performing a search, if I want to search only the data
>> > from
>> > >> USER
>> > >> table, how can I acheive it.
>> > >>
>> > >> Suppose I have a user name bob in both USER and MANAGER tables. So
>> > when
>> > >> I
>> > >> perform http://localhost:8983/solr/dataimport?command=full-import
>> ,
>> > all
>> > >> the
>> > >> USER and MANAGER values will get indexed.
>> > >> And when i do a search like,
>> > >>
>> >
>> http://localhost:8983/solr/select/?q=bob&version=2.2&start=0&rows=10&in
>> > >> dent=on&wt=json
>> > >> it will return all the values indexed from both USER and MANAGER
>> > table.
>> > >> But I want only the data indexed from either USER table or MANAGER
>> > >> table at
>> > >> a time based on the end user's choice. How can I achieve it.
>> > >>
>> > >> Thanks for your reply
>> > >> con
>> > >>
>> > >>
>> > >> Noble Paul നോബിള്‍ नोब्ळ् wrote:
>> > >> >
>> > >> > The entity and the select query has no relationship
>> > >> > The entity comes into picture when you do a dataimport
>> > >> >
>> > >> > eg:
>> > >> > http://localhost:8983/solr/dataimport?command=full-
>> > import&enity=user
>> > >> >
>> > >> > This is an indexing operation
>> > >> >
>> > >> > On Wed, Oct 1, 2008 at 11:26 AM, con <convoyer@gmail.com>
wrote:
>> > >> >>
>> > >> >> Hi guys,
>> > >> >> In the URL, http://localhost:8983/solr/select/?q=
>> > >> >> XXXX:bob&version=2.2&start=0&rows=10&indent=on&wt=json
>> > >> >>
>> > >> >> q=XXXX: applies to a field and not to an entity. So If I have
3
>> > >> entities
>> > >> >> like:
>> > >> >>
>> > >> >> <dataConfig>
>> > >> >>        <dataSource **********/>
>> > >> >>                <document>
>> > >> >>                        <entity name="user" query="select
* from
>> > >> USER">
>> > >> >>                        </entity>
>> > >> >>
>> > >> >>                        <entity name="manager" query="select
*
>> > from
>> > >> >> MANAGERS">
>> > >> >>                        </entity>
>> > >> >>
>> > >> >>                        <entity name="both" query="select
* from
>> > >> >> MANAGERS,USER where MANAGERS.userID= USER .userID">
>> > >> >>                        </entity>
>> > >> >>                </document>
>> > >> >> </dataConfig>
>> > >> >>
>> > >> >> I cannot invoke the entity, 'user', just like the above url.
i
>> > went
>> > >> >> through
>> > >> >> the possible arguments but didnt found a way to invoke an
>> entity.
>> > Is
>> > >> >> there a
>> > >> >> way for this purpose.
>> > >> >> ragards
>> > >> >> con
>> > >> >>
>> > >> >>
>> > >> >>
>> > >> >>
>> > >> >>
>> > >> >>
>> > >> >> con wrote:
>> > >> >>>
>> > >> >>> Thanks Everybody.
>> > >> >>> I have went through the wiki and some other docs. Actually
I
>> > have a
>> > >> >>> tight
>> > >> >>> schedule and I have to look into various other things
along
>> with
>> > >> this.
>> > >> >>> Currently I am looking into rebuilding solr by writing
a
>> wrapper
>> > >> class.
>> > >> >>> I will update you with more meaningful questions soon..
>> > >> >>> thanks and regards.
>> > >> >>> con
>> > >> >>>
>> > >> >>>
>> > >> >>> Norberto Meijome-6 wrote:
>> > >> >>>>
>> > >> >>>> On Fri, 26 Sep 2008 02:35:18 -0700 (PDT)
>> > >> >>>> con <convoyer@gmail.com> wrote:
>> > >> >>>>
>> > >> >>>>> What you meant is correct only. Please excuse
for that I am
>> > new
>> > >> to
>> > >> >>>>> solr.
>> > >> >>>>> :-(
>> > >> >>>>
>> > >> >>>> Con, have a read here :
>> > >> >>>>
>> > >> >>>> http://www.ibm.com/developerworks/java/library/j-solr1/
>> > >> >>>>
>> > >> >>>> it helped me pick up the basics a while back. it refers
to
>> 1.2,
>> > >> but the
>> > >> >>>> core concepts are relevant to 1.3 too.
>> > >> >>>>
>> > >> >>>> b
>> > >> >>>> _________________________
>> > >> >>>> {Beto|Norberto|Numard} Meijome
>> > >> >>>>
>> > >> >>>> Hildebrant's Principle:
>> > >> >>>>         If you don't know where you are going,
>> > >> >>>>         any road will get you there.
>> > >> >>>>
>> > >> >>>> I speak for myself, not my employer. Contents may
be hot.
>> > Slippery
>> > >> when
>> > >> >>>> wet. Reading disclaimers makes you go blind. Writing
them is
>> > >> worse. You
>> > >> >>>> have been Warned.
>> > >> >>>>
>> > >> >>>>
>> > >> >>>
>> > >> >>>
>> > >> >>
>> > >> >> --
>> > >> >> View this message in context:
>> > >> >> http://www.nabble.com/How-to-select-one-entity-at-a-time--
>> > >> tp19668759p19754869.html
>> > >> >> Sent from the Solr - User mailing list archive at Nabble.com.
>> > >> >>
>> > >> >>
>> > >> >
>> > >> >
>> > >> >
>> > >> > --
>> > >> > --Noble Paul
>> > >> >
>> > >> >
>> > >>
>> > >> --
>> > >> View this message in context: http://www.nabble.com/How-to-select-
>> > one-
>> > >> entity-at-a-time--tp19668759p19755437.html
>> > >> Sent from the Solr - User mailing list archive at Nabble.com.
>> > >
>> > >
>> > >
>> >
>> > --
>> > View this message in context: http://www.nabble.com/How-to-select-
>> one-
>> > entity-at-a-time--tp19668759p19755987.html
>> > Sent from the Solr - User mailing list archive at Nabble.com.
> 
> 
> 
:drunk::drunk::jumping::jumping:
-- 
View this message in context: http://www.nabble.com/How-to-select-one-entity-at-a-time--tp19668759p19757360.html
Sent from the Solr - User mailing list archive at Nabble.com.


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