Hey Bret -
Unless I'm missing - yes, this is right on the mark for cayenne.
If you have an existing database, the easiest is to create a new model
and use Tools -> Re-engineer Databae Schema, ie
http://cayenne.apache.org/doc/reverse-engineer-database.html
Note- I find there a few quirks in t
I have a DB that looks something like this:
Product
-ProductId
-Description
Keyword
-ProductId
-Keyword
Where Product -> Keyword is 1:N and Keyword has a FK rel back to Product.
I would like the object model to look something like this:
Product
-(String) _description
-(List) _keywords
Is
The docs page is dated even for 2.0.4... There's an icon with an "I"
in a circle in the relationship tab. It can be seen in this screenshot:
http://cayenne.apache.org/doc20/tutorial-object-relational-mapping.data/modeler-dbrel-dialog.jpg
On a side note the dialog for relationship flattenning
Hi,
It is rather dumb question to ask I have Cayenne Modeler Version 2.0.4. I want
flatten the link table in Object Model (for many to many relationship) using
ObjRelationship Inspector mentioned here [1].
I could not find how to reach to this tool. Can someone tell me where this tool
can be r
On 25/08/09 6:23 PM, Null kühl wrote:
yes, but imagine if it's a huge table, performance wise, ill be reading the
whole table from the db, all columns and all rows.then throw away all the
data except for a certain column, would it have a vast effect on performance
if i just constrain the reading
Yes, the query I mentioned will return List (and if the objAttrubute
you select is mapped as Integer, it will return List). Also you can
specify several columns, then result will be List
2009/8/25 Null kühl
> would that query return only the column name from the client table ? also
> the return
yes, but imagine if it's a huge table, performance wise, ill be reading the
whole table from the db, all columns and all rows.then throw away all the
data except for a certain column, would it have a vast effect on performance
if i just constrain the reading from the beginning ?
On Tue, Aug 25, 20
Hi,
1. How can I configure cayenne to use *more configurations*/
projects? I
don't want always to merge framework's domains with webapp's ones for
every new project/deployment.
Auto merge of multiple configurations is on the TODO lист, but don't
have ит currently. So you'll have to do it yo
On 25/08/09 5:29 PM, Null kühl wrote:
also the return of such a query will be a list of clients as List
c; , or since am querying for a certain field it can be something like List
names;
Although you can do what you want by returning DataRows, I strongly advise you
avoid that approach while
would that query return only the column name from the client table ? also
the return type will be an object of type client ? is there anyway that i
can retrieve from this sorta query a list of strings if am querying for a
name or a list of integers if am querying for a numeral value ?
On Tue, Aug
Hi,
You can use EJBQLQuery for that, something like "select c.name from Client
c", where Client is a mapped ObjEntity.
http://cayenne.apache.org/doc/ejbqlquery.html
Regards,
Andrey
2009/8/25 Null kühl
> I would like to do have a list of of a certain column in a certain table,
> by
> sql langua
I would like to do have a list of of a certain column in a certain table, by
sql language that means something like
SELECT name FROM `client` c;
it's my first time to use cayenne and i searched a lot in it's manual for
doing such a query and the only way that was kind of close is writing the
quer
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