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From Gianny Damour <gianny.dam...@optusnet.com.au>
Subject Re: Dynamic Query
Date Mon, 06 Mar 2006 07:58:06 GMT
I tried to defined the contract of the custom API as closely as possible 
to the Query interface defined by JPA. There are some contracts, which 
cannot be implemented such as definition of parameters by names, 
execution of update or delete statements, yet this is pretty close.

Thanks,
Gianny

Dain Sundstrom wrote:

> Very cool.  I haven't been following JPA (EJB3 Persistence) that  
> closely, so I'm curious how closely this matches up what's coming in  
> EJB3.
>
> -dain
>
> On Mar 2, 2006, at 4:02 AM, Gianny Damour wrote:
>
>> Hi Phani,
>>
>> Sorry for this late reply - I was focused on completing the  
>> implementation of dynamic queries, which is now available in trunk.
>>
>> ModuleCMPEngine is not DayTrader specific. Basically, the idea it  to 
>> bind a specific GBean to the ENC of the component from which you  
>> need to perform the dynamic query. "ModuleCmpEngine" is the  j2eeType 
>> of the GBean to be bound; its type is  
>> "org.openejb.entity.cmp.ModuleCmpEngine"; its J2EE module type is  
>> "EJBModule"; its name is "moduleCmpEngine" and it is part of the  EJB 
>> module defining the CMP for which you need to execute dynamic  EJBQL 
>> queries. So, to bind it to the ENC you use something like this:
>>
>>           <gbean-ref>
>>               <ref-name>cmp/QueryManager</ref-name>  -- ENC name
>>               <ref-type>ModuleCmpEngine</ref-type> -- j2eeType
>>               <proxy-type>org.openejb.entity.cmp.ModuleCmpEngine</ 
>> proxy-type> -- GBean type
>>               <gbean-locator>
>>                   <module>name_of_the_ejb_module</module> -- name  of

>> the EJB module
>>                   <type>EJBModule</type> -- J2EE module type
>>                   <name>moduleCmpEngine</name> -- name of the GBean
>>               </gbean-locator>
>>           </gbean-ref>
>>
>> Thanks,
>> Gianny
>>



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