On Mar 15, 2012, at 3:21 PM, Joe Baldwin wrote:
> 1. what is nominal behavior for Cayenne 3.0.1 - wrt the EventManager Dispatch
> Thread? Should there be 5 of them normally or should there only be one.
5 dispatch threads is the default. So this is correct and means that you only
have 1 Cayenn
Andrus,
Thomas spoke of some fixes for the classloader (among a great many other
issues) in Tomcat 7, so I installed it (which is not nearly as straighforward
as Tomcat 6 BTW), and guess what ... it only has the 5 instances of the
EventManger.
So here is my question list:
1. what is nominal be
If the view is backing to 50m records, then it would still have to do
a full table scan without indexes.
On Thu, Mar 15, 2012 at 12:42 PM, Mike Kienenberger wrote:
> In this particular case, since the view is just doing data conversion,
> I don't think you'd even need indexes, would you?
>
> On T
In this particular case, since the view is just doing data conversion,
I don't think you'd even need indexes, would you?
On Thu, Mar 15, 2012 at 12:35 PM, Michael Gentry wrote:
> Hi Emerson,
>
> I'm pretty sure a view will make no difference. The best way to
> improve performance is to have prop
Hi Emerson,
I'm pretty sure a view will make no difference. The best way to
improve performance is to have proper indexes (which a view could also
utilize). We have a similar-sized database and query times went from
over 1 minute to a few milliseconds once we added an appropriate
index.
mrg
O
Thank you Andrus,
I don't found this instruction.
Sheldon
--
View this message in context:
http://cayenne.195.n3.nabble.com/Myslq-Adapter-tp3828735p3829244.html
Sent from the Cayenne - User mailing list archive at Nabble.com.
Try this Cayenne Guide:
http://people.apache.org/~aadamchik/misc/cayenne-guide-03152012.pdf
It has a lot of blanks, but the DI related stiff is described in some detail.
(Note that all the property names there correspond to the trunk build, and will
not work with M3, but the general advice is f
I am not an expert in this area. I suspect it depends on your
database and environment.
My guess is that a view that only added those three columns would have
very little impact on performance. The primary difference is that
you've moved the conversion of those items from the application to the
Hi Mike
My context: I am handling a table with 50 millions of rows and its size is
increasing up every day some thousands. So, my question goes around
performance of the view's solution that you propose.
Do you think view performance will be better than using SQLTemplate
queries?
Thanks
EMERS
Sorry Andrus, but I don't really understand DI and I don't found good
explanations of it.
Can you give me some advice or good links?
thanks
Sheldon
--
View this message in context:
http://cayenne.195.n3.nabble.com/Myslq-Adapter-tp3828735p3829085.html
Sent from the Cayenne - User mailing list arc
Hi, Thank you so much Andrus
I have implemented a solution using SQLTemplate, I think as you said, It's
the best bet.
A great solution, even better once I have been discovering stuff as: the
#bind and #result directives, and the possibility of DataRow treatment in
order to build structure flexib
It is provided by Cayenne via injection. You can inject it in your provider.
Check org.apache.cayenne.configuration.server.DataDomainProvider, it has this
line:
@Inject
protected JdbcEventLogger jdbcEventLogger;
Andrus
On Mar 15, 2012, at 10:43 AM, Sheldon wrote:
> You are right Andrus
You are right Andrus,
the JdbcEventLogger of the adapter is null.
How can I initialize the Logger?
Sheldon
--
View this message in context:
http://cayenne.195.n3.nabble.com/Myslq-Adapter-tp3828735p3828969.html
Sent from the Cayenne - User mailing list archive at Nabble.com.
Sheldon is building Cayenne config in the code, bypassing XML model.
On Mar 15, 2012, at 10:25 AM, Wernke zur Borg wrote:
>
> Hi,
>
> after a lot of trouble like yours I found that the easiest way is to set
> the DbAdapter class in the modeler. There is an extra tab "Adapter" on
> the DataN
Hi,
after a lot of trouble like yours I found that the easiest way is to set
the DbAdapter class in the modeler. There is an extra tab "Adapter" on
the DataNode configuration. You don't need to do anything in your source
code (except defining your Adapter class).
Wernke
On 2012-03-15 14:19,
Depending on your database and usage, another option is to set up a
view and let the database create derived columns for these, then you
can treat them as regular Cayenne data object fields.
2012/3/14 Emerson Castañeda :
> HI everyone
>
> I have a table with a timestamp field, so I'm thinking abo
NPE is for JdbcEventLogger in the DataNode, not related to adapter.
check DataDomainProvider.createAndInitDataDomain for how the DataNode is
created. Specifically JdbcEventLogger is set explicitly:
dataNode.setJdbcEventLogger(jdbcEventLogger);
Andrus
On Mar 15, 2012, at 9:19 AM, Sheldon wrote:
Hello,
how can I create a custom Mysql adapter? I use cayenne 3.1M3.
I've tried:
1)
DataNode node = new DataNode(...);
dataNode.setAdapter(new MySQLAdapter());
2)
Provider adapterProvider = new Provider() {
public DbAdapter get() throws ConfigurationException {
Hi Joerg,
The PostgresAdapter is definitely part of the snapshot:
$ jar tvf
~/.m2/repository/org/apache/cayenne/cayenne-server/3.1M4-SNAPSHOT/cayenne-server-3.1M4-SNAPSHOT.jar
| grep PostgresAdapter
8090 Fri Feb 24 09:01:24 EST 2012
org/apache/cayenne/dba/postgres/PostgresAdapter.class
The on
Hi Michael,
I found the Ant debug settings :) This seems to be the relevant part of the
exception:
Caused by: java.lang.ClassNotFoundException:
org.apache.cayenne.dba.postgres.PostgresAdapter
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessContro
20 matches
Mail list logo
