Just try it :-)
Don't forget to call "setFetchingDataRows(true)" as mentioned by
Michael. This is what makes the difference. The result will be a list
of Maps.
Andrus
On Jul 20, 2007, at 8:45 PM, Jack O'Connor wrote:
OK, but then if I use
SQLTemplate select = new SQLTemplate(Artist.class, "show table
status");
List artists = dataContext.performQuery(select);
Surely I will have Artist objects, and will only be able to use
that classes defined "getters and setters"? i.e. How will I extract
data from columns: data_length and index_length?
Thanks
Jack
Andrus Adamchik wrote:
In this case it is needed to pick the right database (Cayenne
potentially can access more than one). You can use an arbitrary
class from your model in this case.
Andrus
On Jul 20, 2007, at 5:24 PM, Jack O'Connor wrote:
Thanks for the reply, but all the SQLTemplates on that page
require a class/table to refer to (all the examples are for
Artist.class). The MySQL command "show table status" doesn't
apply to any particular class...
Jack
Michael Gentry wrote:
I would think you'd be able to use an SQLTemplate to perform
that kind of query:
http://cayenne.apache.org/doc20/sqltemplate-query.html
You'll want to call setFetchingDataRows(true) on your SQLTemplate
object, too, otherwise Cayenne will try to make
CayenneDataObjects out
of it. Do this before you run performQuery().
/dev/mrg
On 7/19/07, Jack O'Connor <[EMAIL PROTECTED]> wrote:
Hi all, in my project I need to extract the total db size(kb).
Im using
Cayenne 1.2.3 and MySQL and I found the SQL command "show table
status
from <db name>" which displays a table of information about all
of the
tables in a certain db. This table has columns like "Name"(of
table),
"Data_length" and "Index_length", and apparently the best way
to extract
the size(kb) of a db is to sum the Data_length and Index_length
columns
of this table.
Does anyone know how I can get the results of this query into
java?
Many Thanks
Jack
