Hi Gianny,
Thanks for info.
I understand following from the Query engine.
1. As a first step, we will have a query engine that allows only standard EJB-QL. No additional capabilities.
2. From the tags mentioned in your previous mail, ModuleCMPEngine will be part of DayTrader application? My question is, where is ModuleCMPEngine located?
Thx
phani
On 2/27/06, Gianny Damour <[EMAIL PROTECTED]> wrote:
Hi Phani,
In a first step, we will add support for standard EJBQL statements. The
current impl. is as follows:
* in the vendor specific deployment descriptor, a specific GBean is
bound to the ENC. This looks like this:
<gbean-ref>
<ref-name>cmp/QueryManager</ref-name>
<ref-type>ModuleCmpEngine</ref-type>
<gbean-locator>
<application>geronimo/daytrader-derby-jetty/1.1-SNAPSHOT/car</application>
<module> daytrader-ejb-1.1-SNAPSHOT.jar</module>
<type>EJBModule</type>
<name>moduleCmpEngine</name>
</gbean-locator>
</gbean-ref>
* from the J2EE component having the above gbean-ref, we following
snippet retrieves a QueryManager:
QueryManagerLocator locator = new QueryManagerLocator();
QueryManager qm = locator.locate("cmp/QueryManager");
* the QueryManager allows the creation of queries:
Query query = qm.createQuery("select H from HoldingEJB H where
H.holdingID = ?", new Class[] {Integer.class});
* parameters are then set:
query.setParameter(0, new Integer(1));
* when the parameters have been set, the query is then executed and
return the result as a single object or a list:
Object result = query.getSingleResult();
or
List results = query.getResultList();
I am in the process of testing the impl.; meanwhile, if you think that
the above can be improved, then let us know.
Thanks,
Gianny
Phani Madgula wrote:
> Hi Gianny,
>
> I just want to know more about this feature.
>
> Is it something like AG providing an API for CMP clients to execute
> EJBQL statements at runtime?.
>
> If yes, what kind of queries we can execute? are query capabilities
> extended?
>
> For example, currently EJB-QL does not allow multiple expressions in
> SELECT class.
> That is, we can't have SELECT OBJECT(e), e.name < http://e.name> FROM
> ... like statements.
>
> will dynamic query feature allow above statement?
>
> Thx
> phani
>
>
>
> **
> **
> **
>
> **
>
>
>
>
> On 2/23/06, *Gianny Damour* <[EMAIL PROTECTED]
> <mailto: [EMAIL PROTECTED]>> wrote:
>
> Hi Glaucio,
>
> It is not yet possible to create dynamic queries in Geronimo. This
> feature is currently being progressed and will be available next
> week.
>
> Thanks,
> Gianny
>
> Glaucio Scheibel wrote:
>
> > Hi,
> >
> > I am looking how to create dynamic queries in geronimo. Is this
> > possible? I didn't find any info about this.
> >
> > Thanks in advance
> > Glaucio
> >
> >
>
>
>
