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From "Kim Haase (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-6059) Document Derby usage running on Java 8 JEP 161 Compact Profiles
Date Mon, 11 Feb 2013 14:17:14 GMT

    [ https://issues.apache.org/jira/browse/DERBY-6059?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13575800#comment-13575800

Kim Haase commented on DERBY-6059:

Thanks, Dag and Knut, that clarifies matters a lot.

I'm still a little bit confused by the statement that "For Java 7 (JDBC 4.1) it *is* required
[to use the '40' data sources]." We have been saying (in http://db.apache.org/derby/docs/10.9/adminguide/cadminnsdatasources.html,
for instance) that you can use the old data sources on all platforms:

"The Network Server supports the Derby Network Client driver DataSource classes org.apache.derby.jdbc.ClientDataSource
and org.apache.derby.jdbc.ClientConnectionPoolDataSource on all supported Java SE platforms."
(It's a bit confusing that the XA ones are not mentioned, but they are in the next section.)

If you are running on Java SE 7, it seems that you cannot use these but must use the "40"
versions? Or is that the case (as we have been saying) only if you want to use the APIs specific
to JDBC 4.1? If you have an app that uses only JDBC 3 methods, can you use the basic org.apache.derby.jdbc.ClientDataSource
(etc.) DataSources on SE 6, 7, and 8 if you want?

Just checking ... Thanks!

> Document Derby usage running on Java 8 JEP 161 Compact Profiles
> ---------------------------------------------------------------
>                 Key: DERBY-6059
>                 URL: https://issues.apache.org/jira/browse/DERBY-6059
>             Project: Derby
>          Issue Type: Improvement
>          Components: Documentation
>            Reporter: Dag H. Wanvik
>            Assignee: Kim Haase
>             Fix For:
>         Attachments: javadoc-snapshot.pdf
> Document that Derby can run even under constrained Java runtime as planned for Java 8
Compact Profiles 2 and 3 (not 1, the smallest runtime, since it has no JDBC). Cf work in DERBY-5955
which made Derby run gracefully even when some normal Java runtime packages are missing, notably
> That work introduced six new data sources which have reduced functionality compared with
the corresponding ones for full Java SE, in that there is no JNDI support. The six new data
sources are for the client driver:
> Client/server data sources for use with Java 8 Compact Profile 2 and above:
>     BasicClientDataSource40 - Data source
>     BasicClientConnectionPoolDataSource40 - Connection pooling data source
>     BasicClientXADataSource40 - XA data source 
> Embedded data sources for use with Java 8 Compact Profile 2 and above:
>     BasicEmbeddedDataSource40 - Data source
>     BasicEmbeddedConnectionPoolSource40 - Connection pooling data source
>     BasicEmbeddedXASource40 - XA data source 

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