Re: Reengineer Database Schema not generating anything

From: Andrus Adamchik (andru..bjectstyle.org)
Date: Wed Nov 03 2010 - 22:36:55 UTC

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At the end reverse engineering in Cayenne is based on JDBC API. More specifically it invokes DatabaseMetaData.getTables(..) method:

http://download.oracle.com/javase/6/docs/api/java/sql/DatabaseMetaData.html#getTables%28java.lang.String,%20java.lang.String,%20java.lang.String,%20java.lang.String[]%29

with catalog parameter set to NULL, schema and table patterns set to your selections, and "types" set to { "TABLE", "VIEW" }. Then it processes whatever is returned by this method.

I guess one way to debug it is to write a simple JDBC test to see if the above returns any data.

Andrus

On Nov 3, 2010, at 6:19 PM, Mark Fischer wrote:

> I tried working this a different way around. I created a test database and
> table by using Cayenne to map things out and then generate the table. Then
> I opened Cayenne with a new project and tried to reverse engineer the table
> that Cayenne created. I still get an empty usermap. Is there a log file I
> could look in for an error of some explination of what is going wrong? The
> show console log shows nothing helpful as far as I am able to see. I wish
> it would at least give me something to go on.
> On Wed, Nov 3, 2010 at 2:50 PM, Mark Fischer <farkmische..mail.com> wrote:
>
>> I have tried checking that I don't have a permissions problem. I have
>> tried loggin into SQL Server with SQL Server Management Studio using the
>> same username and password and I can see all of the tables. What
>> permissions is Cayenne looking for from the database. I'm not sure what I
>> am checking for.
>>
>> Thanks,
>> Mark
>>
>> On Tue, Nov 2, 2010 at 9:17 PM, Andrus Adamchik <andru..bjectstyle.org>wrote:
>>
>>> Hi Mark,
>>>
>>> I can only think of two reasons - a given schema has no tables or views,
>>> or permissions for a given user won't let him see those tables. I am not a
>>> SQL Server expert to comment on the specific schema though...
>>>
>>> Andrus
>>>
>>>
>>> On Nov 2, 2010, at 6:16 PM, Mark Fischer wrote:
>>>
>>>> I am running windows XP with cayenne-modeler connecting to a local MS
>>> SQL
>>>> Server 2008 Express db. I set up my local datasource and when I clicked
>>>> test it says successful.
>>>>
>>>> I create a node and have the DataSource
>>>> Factory org.apache.cayenne.conf.DriverDataSourceFactory selected.
>>>>
>>>> With the node selected I go to Tools -> Reengineer Database Schema.
>>>>
>>>> Cayenne asks me which connection to use and I choose the same one as
>>>> selected in the node. Then it asks me which schema and I leave it at
>>>> db_accessadmin.
>>>>
>>>> Cayenne thinks for a second and then generates UntitledMap which does
>>> not
>>>> seem to contain any of the tables from my database. I was following the
>>>> example at http://cayenne.apache.org/doc/reverse-engineer-database.html.
>>>>
>>>> I just started trying cayenne two weeks ago and have been thrashing with
>>>> this for two weeks I have searched but have not found anything useful
>>>> through google.
>>>> Being new I am not sure what else to try.
>>>>
>>>> Here is the text in the console while I use the Reeingineer menuitem:
>>>>
>>>> Nov 2, 2010 5:14:47 PM
>>>> INFO: --- will run 2 queries.
>>>> Nov 2, 2010 5:14:47 PM
>>>> INFO: --- transaction started.
>>>> Nov 2, 2010 5:14:47 PM
>>>> INFO: UPDATE component_geometry SET y = ?, x = ? WHERE id = ?
>>>> Nov 2, 2010 5:14:47 PM
>>>> INFO: [bind: 1->y:0, 2->x:0, 3->id:202]
>>>> Nov 2, 2010 5:14:47 PM
>>>> INFO: === updated 1 row.
>>>> Nov 2, 2010 5:14:47 PM
>>>> INFO: UPDATE domain_preference SET key_value_pairs = ? WHERE id = ?
>>>> Nov 2, 2010 5:14:47 PM
>>>> INFO: [bind: 1->key_value_pairs:'#Tue Nov 02 17:14:32 CDT 2010
>>>> ...', 2->id:201]
>>>> Nov 2, 2010 5:14:47 PM
>>>> INFO: === updated 1 row.
>>>> Nov 2, 2010 5:14:47 PM
>>>> INFO: +++ transaction committed.
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: --- will run 1 query.
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: --- transaction started.
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: SELECT t0.key_value_pairs, t0.domain_id, t0.key, t0.id FROM
>>>> domain_preference t0 JOIN domain t1 ON (t0.domain_id = t1.id) WHERE
>>> (t0.key
>>>> = ?) AND (t0.domain_id = ?) ORDER BY t1.level DESC LIMIT 1 OFFSET 0
>>> [bind:
>>>> 1->key:'EmploymentApplication', 2->domain_id:221]
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: === returned 1 row. - took 16 ms.
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: +++ transaction committed.
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: --- will run 1 query.
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: --- transaction started.
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: SELECT t0.parent_id, t0.level, t0.id, t0.description, t0.name,
>>>> t0.version FROM domain t0 WHERE (t0.name = ?) AND (t0.level = ?) [bind:
>>>> 1->name:'CayenneModeler', 2->level:0]
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: === returned 1 row. - took 0 ms.
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: +++ transaction committed.
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: --- will run 1 query.
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: --- transaction started.
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: SELECT t0.key_value_pairs, t0.domain_id, t0.key, t0.id FROM
>>>> domain_preference t0 JOIN domain t1 ON (t0.domain_id = t1.id) WHERE
>>> (t0.key
>>>> = ?) AND (t0.domain_id = ?) ORDER BY t1.level DESC LIMIT 1 OFFSET 0
>>> [bind:
>>>> 1->key:'HMSysLocalSQLServer', 2->domain_id:200]
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: === returned 1 row. - took 0 ms.
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: +++ transaction committed.
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: --- will run 1 query.
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: --- transaction started.
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: SELECT t0.parent_id, t0.level, t0.id, t0.description, t0.name,
>>>> t0.version FROM domain t0 WHERE (t0.name = ?) AND (t0.level = ?) [bind:
>>>> 1->name:'CayenneModeler', 2->level:0]
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: === returned 1 row. - took 15 ms.
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: +++ transaction committed.
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: --- will run 1 query.
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: --- transaction started.
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: SELECT t0.domain_preference_id, t0.db_adapter, t0.user_name,
>>>> t0.password, t0.url, t0.jdbc_driver, t0.id FROM db_connection_info t0
>>> WHERE
>>>> t0.id IN (?, ?, ?, ?, ?) [bind: 1->id:203, 2->id:210, 3->id:211,
>>> 4->id:220,
>>>> 5->id:246]
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: === returned 3 rows. - took 0 ms.
>>>> Nov 2, 2010 5:14:50 PM
>>>> INFO: +++ transaction committed.
>>>> Nov 2, 2010 5:14:53 PM
>>>> INFO: --- will run 1 query.
>>>> Nov 2, 2010 5:14:53 PM
>>>> INFO: --- transaction started.
>>>> Nov 2, 2010 5:14:53 PM
>>>> INFO: SELECT t0.parent_id, t0.level, t0.id, t0.description, t0.name,
>>>> t0.version FROM domain t0 WHERE (t0.name = ?) AND (t0.level = ?) [bind:
>>>> 1->name:'CayenneModeler', 2->level:0]
>>>> Nov 2, 2010 5:14:53 PM
>>>> INFO: === returned 1 row. - took 0 ms.
>>>> Nov 2, 2010 5:14:53 PM
>>>> INFO: +++ transaction committed.
>>>> Nov 2, 2010 5:14:53 PM
>>>> INFO: --- will run 1 query.
>>>> Nov 2, 2010 5:14:53 PM
>>>> INFO: --- transaction started.
>>>> Nov 2, 2010 5:14:53 PM
>>>> INFO: SELECT t0.parent_id, t0.level, t0.id, t0.description, t0.name,
>>>> t0.version FROM domain t0 WHERE t0.parent_id = ? [bind:
>>> 1->parent_id:200]
>>>> Nov 2, 2010 5:14:53 PM
>>>> INFO: === returned 15 rows. - took 0 ms.
>>>> Nov 2, 2010 5:14:53 PM
>>>> INFO: +++ transaction committed.
>>>> Nov 2, 2010 5:14:53 PM
>>>> INFO: --- will run 1 query.
>>>> Nov 2, 2010 5:14:53 PM
>>>> INFO: --- transaction started.
>>>> Nov 2, 2010 5:14:53 PM
>>>> INFO: SELECT t0.key_value_pairs, t0.domain_id, t0.key, t0.id FROM
>>>> domain_preference t0 JOIN domain t1 ON (t0.domain_id = t1.id) WHERE
>>> (t0.key
>>>> = ?) AND (t0.domain_id = ?) ORDER BY t1.level DESC LIMIT 1 OFFSET 0
>>> [bind:
>>>> 1->key:'recent.strategies', 2->domain_id:217]
>>>> Nov 2, 2010 5:14:53 PM
>>>> INFO: === returned 1 row. - took 0 ms.
>>>> Nov 2, 2010 5:14:53 PM
>>>> INFO: +++ transaction committed.
>>>> Nov 2, 2010 5:14:53 PM
>>>> DEBUG: will show progress...
>>>> Nov 2, 2010 5:14:55 PM
>>>> INFO: --- will run 1 query.
>>>> Nov 2, 2010 5:14:55 PM
>>>> INFO: --- transaction started.
>>>> Nov 2, 2010 5:14:55 PM
>>>> INFO: SELECT t0.parent_id, t0.level, t0.id, t0.description, t0.name,
>>>> t0.version FROM domain t0 WHERE (t0.name = ?) AND (t0.level = ?) [bind:
>>>> 1->name:'CayenneModeler', 2->level:0]
>>>> Nov 2, 2010 5:14:55 PM
>>>> INFO: === returned 1 row. - took 0 ms.
>>>> Nov 2, 2010 5:14:55 PM
>>>> INFO: +++ transaction committed.
>>>> Nov 2, 2010 5:14:55 PM
>>>> INFO: --- will run 1 query.
>>>> Nov 2, 2010 5:14:55 PM
>>>> INFO: --- transaction started.
>>>> Nov 2, 2010 5:14:55 PM
>>>> INFO: SELECT t0.key_value_pairs, t0.domain_id, t0.key, t0.id FROM
>>>> domain_preference t0 JOIN domain t1 ON (t0.domain_id = t1.id) WHERE
>>> (t0.key
>>>> = ?) AND (t0.domain_id = ?) ORDER BY t1.level DESC LIMIT 1 OFFSET 0
>>> [bind:
>>>> 1->key:'recent.strategies', 2->domain_id:217]
>>>> Nov 2, 2010 5:14:55 PM
>>>> INFO: === returned 1 row. - took 0 ms.
>>>> Nov 2, 2010 5:14:55 PM
>>>> INFO: +++ transaction committed.
>>>> Nov 2, 2010 5:14:55 PM
>>>> INFO: --- will run 1 query.
>>>> Nov 2, 2010 5:14:55 PM
>>>> INFO: --- transaction started.
>>>> Nov 2, 2010 5:14:55 PM
>>>> INFO: SELECT t0.parent_id, t0.level, t0.id, t0.description, t0.name,
>>>> t0.version FROM domain t0 WHERE (t0.name = ?) AND (t0.level = ?) [bind:
>>>> 1->name:'CayenneModeler', 2->level:0]
>>>> Nov 2, 2010 5:14:55 PM
>>>> INFO: === returned 1 row. - took 0 ms.
>>>> Nov 2, 2010 5:14:55 PM
>>>> INFO: +++ transaction committed.
>>>> Nov 2, 2010 5:14:55 PM
>>>> INFO: --- will run 1 query.
>>>> Nov 2, 2010 5:14:55 PM
>>>> INFO: --- transaction started.
>>>> Nov 2, 2010 5:14:55 PM
>>>> INFO: SELECT t0.key_value_pairs, t0.domain_id, t0.key, t0.id FROM
>>>> domain_preference t0 JOIN domain t1 ON (t0.domain_id = t1.id) WHERE
>>> (t0.key
>>>> = ?) AND (t0.domain_id = ?) ORDER BY t1.level DESC LIMIT 1 OFFSET 0
>>> [bind:
>>>> 1->key:'recent.strategies', 2->domain_id:217] - prepared in 15 ms.
>>>> Nov 2, 2010 5:14:55 PM
>>>> INFO: === returned 1 row. - took 15 ms.
>>>> Nov 2, 2010 5:14:55 PM
>>>> INFO: +++ transaction committed.
>>>> Nov 2, 2010 5:14:55 PM
>>>> DEBUG: searching for resource under:
>>>> org/apache/cayenne/dba/sqlserver/types.xml
>>>> Nov 2, 2010 5:14:55 PM
>>>> INFO: Detected and installed adapter:
>>>> org.apache.cayenne.dba.sqlserver.SQLServerAdapter
>>>> Nov 2, 2010 5:14:55 PM
>>>> DEBUG: will show progress...
>>>> Nov 2, 2010 5:14:55 PM
>>>> DEBUG: task still in progress, will show progress dialog...
>>>
>>>
>>

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