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From "Tiago R. Espinha (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-4907) EmbeddedXADataSource with ;create=true attribute set in setDatabaseName fails with java.sql.SQLException: Database not available
Date Wed, 16 Feb 2011 21:28:24 GMT

    [ https://issues.apache.org/jira/browse/DERBY-4907?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12995529#comment-12995529

Tiago R. Espinha commented on DERBY-4907:

Ok, I have a couple more comments. I agree with Kathey. The short database name is something
that we can manage whenever a database name is set. We could have an attribute shortDatabaseName
that we define whenever the actual database name is set (setDatabaseName). Then the getShortName()
method would simply return this field, without having to do any kind of checks (Kathey, you
mention checking but I can't seem to think of anything that would be required...).

I've also noticed that you have: a) spelling changes, b) production code changes and c) test
additions in one single patch. I'm not sure if everyone will agree with me on this, but I've
always done code changes and test changes in separate patches. Sure, maybe for a small patch
like this it doesn't matter much, but when we start dealing with larger patches, I think it's
good practice to keep the two separated.

I might also be nit picking but I would prefer (for standard's sake) that getter methods (like
shortDatabaseName() ) would actually start with "get".

> EmbeddedXADataSource with ;create=true attribute set in setDatabaseName fails with java.sql.SQLException:
Database not available
> --------------------------------------------------------------------------------------------------------------------------------
>                 Key: DERBY-4907
>                 URL: https://issues.apache.org/jira/browse/DERBY-4907
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC
>    Affects Versions:,,,,,
>            Reporter: Kathey Marsden
>            Assignee: Siddharth Srivastava
>            Priority: Minor
>              Labels: derby_triage10_8
>         Attachments: derby4907.diff, derby4907.diff, derby4907.txt, derby4907_final.diff
> Setting the ;create=true attribute in setDatabaseName with EmbededXADataSource and EmbeddedXADataSource40
 fails with 
> $ java TestDerbyCreate
> Exception in thread "main" java.sql.SQLException: Database not available
>         at org.apache.derby.jdbc.EmbeddedXADataSource.setupResourceAdapter(Embe
> dedXADataSource.java:175)
>         at org.apache.derby.jdbc.EmbeddedXADataSource.getXAConnection(EmbeddedX
> DataSource.java:101)
>         at TestDerbyCreate.main(TestDerbyCreate.java:18)
> using the create attributie in databaseName works fine with EmbeddedDataSource.  
> Using setCreateDatabase("create") with EmbeddedXADataSource is a good work around and
I think generally preferable.
> import java.sql.*;
> import javax.sql.*;
> public class TestDerbyCreate
> {
>     public static void main(String[] args) throws Throwable
>     {
>         org.apache.derby.jdbc.EmbeddedXADataSource ds =
>             new 
> org.apache.derby.jdbc.EmbeddedXADataSource();
>         ds.setDatabaseName("TestDB;create=true");
>         ds.setUser("dbuser1");
>         ds.setPassword("dbpwd1");
> 	PooledConnection pooledConn = ds.getXAConnection();
>         Connection conn = pooledConn.getConnection();
>         System.out.println("Database product: " + 
> conn.getMetaData().getDatabaseProductName());
>         System.out.println("Database version: " + 
> conn.getMetaData().getDatabaseProductVersion());
>         System.out.println("Driver name:      " + 
> conn.getMetaData().getDriverName());
>         System.out.println("Driver version:   " + 
> conn.getMetaData().getDriverVersion());
>         System.out.println("JDBC driver major ve

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