Transaction Control can already be used with a DataSource, Driver, DataSourceFactory, you name it. It also doesn’t have special configuration, it’s config admin just like everything else.
The scoped connection is also not special, and can be passed to all manner of other libraries. You can even wrap it in a DataSource which hands out the same connection to everyone, just like Spring do with their SingleConnectionDataSource. Regards, Tim > On 1 Mar 2017, at 10:28, Christian Schneider <ch...@die-schneider.net> wrote: > > It would be nice if the transaction control service would also support > DataSources as services. So would would only need to teach people one > variante to configure them. > Transaction control is special in its config and it can not be reused for > other usages of a database. > > Christian > > 2017-03-01 10:44 GMT+01:00 Timothy Ward <tim.w...@paremus.com > <mailto:tim.w...@paremus.com>>: > Again, I can recommend the OSGi Transaction Control service. The Aries > implementation has support for configuration defined resources, which make > connection and pooling configuration extremely easy. See > http://aries.apache.org/modules/tx-control/localJDBC.html#creating-a-resource-using-a-factory-configuration > > <http://aries.apache.org/modules/tx-control/localJDBC.html#creating-a-resource-using-a-factory-configuration> > for details. > > The Aries Transaction Control implementation also has support for XA > transactions if that’s of interest to you. > > Best Regards, > > Tim Ward > > Author, Enterprise OSGi in Action https://www.manning.com/cummins > <https://www.manning.com/cummins> > > > >> On 1 Mar 2017, at 08:11, schmke <ktschm...@gmail.com >> <mailto:ktschm...@gmail.com>> wrote: >> >> I too am trying out the HikariCP pooling and haven't figured out how to >> change/specify pool settings. >> >> I have a .cfg file that creates a pooled data source just fine, with TRACE >> logging on I see HikariCP initializing and all the default settings. And >> the pool is used as I use the data source. >> >> But when I try to specify pooling configuration in the .cfg file, the >> property I set is passed on to the underlying data source factory, not the >> pool. For example, I want to set the minimumIdle to 5 rather than the >> default 10. >> >> If I specify pool.minimumIdle=5 I see this in the log: >> >> 2017-03-01T00:08:13,848 | WARN | CM Configuration Updater >> (ManagedServiceFactory Update: factoryPid=[org.ops4j.datasource]) | >> DataSourceRegistration | 76 - org.ops4j.pax.jdbc.config - 1.0.1 | >> cannot set properties [pool.minimumIdle] >> java.sql.SQLException: cannot set properties [pool.minimumIdle] >> at >> org.ops4j.pax.jdbc.mysql.impl.MysqlDataSourceFactory.setProperties(MysqlDataSourceFactory.java:71) >> [77:org.ops4j.pax.jdbc.mysql:1.0.1] >> >> If I instead specify jdbc.pool.minimumIdle=5, the same thing: >> >> 2017-03-01T00:09:04,034 | WARN | CM Configuration Updater >> (ManagedServiceFactory Update: factoryPid=[org.ops4j.datasource]) | >> DataSourceRegistration | 76 - org.ops4j.pax.jdbc.config - 1.0.1 | >> cannot set properties [pool.minimumIdle] >> java.sql.SQLException: cannot set properties [pool.minimumIdle] >> at >> org.ops4j.pax.jdbc.mysql.impl.MysqlDataSourceFactory.setProperties(MysqlDataSourceFactory.java:71) >> [77:org.ops4j.pax.jdbc.mysql:1.0.1] >> >> So how are the properties to be specified so they get passed to the pool and >> not the underlying JDBC data source? >> >> >> >> -- >> View this message in context: >> http://karaf.922171.n3.nabble.com/PAX-JDBC-1-0-1-pools-tp4049649p4049697.html >> >> <http://karaf.922171.n3.nabble.com/PAX-JDBC-1-0-1-pools-tp4049649p4049697.html> >> Sent from the Karaf - User mailing list archive at Nabble.com >> <http://nabble.com/>. > > > > > -- > -- > Christian Schneider > http://www.liquid-reality.de > <https://owa.talend.com/owa/redir.aspx?C=3aa4083e0c744ae1ba52bd062c5a7e46&URL=http%3a%2f%2fwww.liquid-reality.de> > > Open Source Architect > http://www.talend.com > <https://owa.talend.com/owa/redir.aspx?C=3aa4083e0c744ae1ba52bd062c5a7e46&URL=http%3a%2f%2fwww.talend.com>
