Thanks for your reply Marc. With your suggestion, I can now generate a
schema XML file without any DB connection. But when I try to use the
SchemaTool to generate a SQL file, I am getting this error message again:
INFO: OpenJPA will now connect to the database to attempt to determine what
type of database dictionary to use. To prevent this connection in the
future, set your openjpa.jdbc.DBDictionary configuration property to the
appropriate value for your database (see the documentation for available
values).
Exception in thread "main" <4|true|0.0.0>
org.apache.openjpa.util.UserException:
A JDBC Driver or DataSource class name must be specified in the
ConnectionDriverName property.
at
org.apache.openjpa.jdbc.schema.DataSourceFactory.newDataSource(DataSourceFactory.java:67)
at
org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.createConnectionFactory(JDBCConfigurationImpl.java:797)
at
org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.getDBDictionaryInstance(JDBCConfigurationImpl.java:563)
at
org.apache.openjpa.jdbc.schema.XMLSchemaParser.<init>(XMLSchemaParser.java:121)
at
org.apache.openjpa.jdbc.schema.SchemaTool.run(SchemaTool.java:1439)
at
org.apache.openjpa.jdbc.schema.SchemaTool.run(SchemaTool.java:1391)
at
org.apache.openjpa.jdbc.schema.SchemaTool.main(SchemaTool.java:1336)
Please notice that I do have a Derby Embedded Database ready on my file
system and OpenJPA can connect anytime it needs to, and here is a fragment
of my META-INF/persistence.xml file that describes the datasource setting:
<property name="openjpa.jdbc.DBDictionary" value=
"org.apache.openjpa.jdbc.sql.DerbyDictionary"/>
<property name="openjpa.ConnectionUserName" value="user"/>
<property name="openjpa.ConnectionPassword" value="secret"/>
<property name="openjpa.ConnectionDriverName" value=
"org.apache.derby.jdbc.EmbeddedDriver"/>
<property name="openjpa.ConnectionURL" value=
"jdbc:derby:d:/abc/hellojpa-database"/>
Any help is appreciated.
Regards,
Jack
/
/
/ Jack Fong
/ [EMAIL PROTECTED]
/
/ Software Developer, Rational/AIM WebSphere, Java EE Application Tools
IBM Canada Ltd.
/ 905-413-3930 (T/L 969)
/ D3/RKB/8200/MKM
/
/
/
/
/
/
/ (Embedded image moved to file: pic16211.gif) (Embedded image moved to
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"Marc
Prud'hommeaux"
<[EMAIL PROTECTED] To
org> [EMAIL PROTECTED]
Sent by: "Marc cc
Prud'hommeaux"
<[EMAIL PROTECTED] Subject
mail.com> Re: Generate DDL without DB
connection
05/30/2007 11:19
PM
Please respond to
[EMAIL PROTECTED]
bator.apache.org
Unfortunately, you do need to be able to connect to a database in
order to generate a SQL DDL. I think it would be a pretty minor
project to remove this restriction, but as of right now, it exists.
Note that you can generate a database-independent schema XML file
without connecting to any database, e.g. with:
java org.apache.openjpa.jdbc.meta.MappingTool -action buildSchema -
schemaAction none -DBDictionary oracle -schemaFile schema.xml
com.company.MyEntity
With that file, you can later use the SchemaTool to build the schema.
On May 30, 2007, at 1:00 PM, Jack Fong wrote:
>
> Hello,
>
> Have anyone able to generate a DDL from a Java source file without
> setting
> up a DB please? Thanks.
>
>
> Regards,
> Jack
>
>
>
> /
> /
>
> / Jack Fong
> / [EMAIL PROTECTED]
> /
> / Software Developer, Rational/AIM WebSphere, Java EE Application
> Tools
> IBM Canada Ltd.
> / 905-413-3930 (T/L 969)
> / D3/RKB/8200/MKM
> /
> /
> /
> /
> /
> /
>
>
> / (Embedded image moved to file: pic02110.gif) (Embedded image
> moved to
> / file: pic02712.gif)
>
>
>
