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Re: [eclipselink-dev] questions while running JPA JUnit tests
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A couple more comments.
1. I'll do my best to take a look at your core patch soon.
2. For the connection issues, some comments/questions
- I wonder if some early test failures cause corruption of the connections. Do
you see the connection problems as part of your first error, or is it something
else?
- Does your Symfoware database allow a limited number of connections and if so,
what is the limit?
- It sometimes helps to take the individual suites that are listed in
FullRegressionSuite and run them individually to reduce the number of tests and
see if the connectin problems still occurs. Are you running
FullRegressionTestSuite as a whole, or are you running individual suites that
are components of FullRegressionTestSuite?
Tom Ware wrote:
Hi Dies,
I am hoping to get chanes for the supportsPrimaryKeyConstraint() and
the majority of the SQL reserved word issues checked in fairly soon.
There may be some SQL reserved word issues we have to deal with
separately (mostly with SEQUENCE). I'll update the bug when I check-in
with the current state.
Does Symfoware support outer join in the Where clause? We have
support for writing SQL statements in an alternate way for database
platforms that have that support. Have a look at the
operatorOuterJoin() and shouldUseJDBCOuterJoinSyntax() and
shouldPrintOuterJoinInWhereClause() methods in various database
platforms. (e.g. OraclePlatform)
-Tom
Dies Koper wrote:
Hi Tom,
Why does it check supportsPrimaryKeyConstraint() and not
supportsUniqueKeyConstraint()?
It is possible, this is a legacy issue. (i.e. from before we had
platform support for unique key constraints) Please file a bug.
Done!
https://bugs.eclipse.org/bugs/show_bug.cgi?id=289403
2. Check-in: bug 289019, bug 289020, bug 289021 and bug 289023
You merged the patches into one and marked the bugs as fixed. Have
you committed the patch? I couldn't find it in trunk.
I am not sure what happened to my check-in. The changes should be
there now.
Thanks!
3. INNER JOIN
Symfoware does not support (INNER) JOIN syntax.
"JOIN" is used in SQLSelectStatement twice, at least one of which is
used when using a self-referencing many to many relationship and
performing a (JPQL) LEFT OUTER JOIN query. I can prevent the syntax
error by replacing the inner join by a left outer join for Symfoware,
but I'm worried that might select too many rows. I suppose a better
solution is to compare join keys in the where clause. What do you
think?
Do you happen to know an easy way to do that (using existing code)? If
not, never mind, I'll do some more research myself.
Could you please give an example of a statement that gives you an
issue, what the resulting SQL is, and what part of it is not
supported by Symfoware?
Query query = em.createQuery("SELECT o from Person o LEFT OUTER JOIN
o.persons AS p");
gives:
SELECT t0.ID, t0.NAME, t1.ID, t1.NAME FROM {oj PERSON t0 LEFT OUTER JOIN
(PERSON_PERSON t2 JOIN PERSON t1 ON (t1.ID = t2.persons_ID)) ON
(t2.Person_ID = t0.ID)}
Symfoware complains about "JOIN", saying that the join type is not
specified. Legal values are LEFT/RIGHT (OUTER).
So I suppose I should change it to generate something like:
SELECT t0.ID, t0.NAME, t1.ID, t1.NAME FROM {oj PERSON t0 LEFT OUTER JOIN
(SELECT PERSON_PERSON t2, PERSON t1 WHERE t1.ID = t2.persons_ID) ON
(t2.Person_ID = t0.ID)}
4. Patches.
Start by attaching the single patch to the Symfoware platform bug and
describing the issues. If any of the changes are large enough to
merit their own bug, we can add the bug later.
Done!
https://bugs.eclipse.org/bugs/show_bug.cgi?id=288715
From your previous email:
1. --
LANGUAGE, VALUE, DOMAIN, SEQUENCE
- I am still hoping to find the time to deal with these issues.
I have enclosed most if not all occurrences in double-quotes in the
patch I attached to the bug for SymfowarePlatform.
That worked for me with Symfoware, and I have also confirmed with
Derby that none of my changes caused new failures on Derby.
56% of 1270 tests (I temporarily disabled some) are currently passing.
I will document some of the limitations in this platform I found on
the Wiki tomorrow.
The biggest issue I still have is that I get errors saying that the
resource (table, etc.) is locked by another user, or sometimes it even
hangs on getConnection. I checked with the JDBC driver's trace info
and found the number of calls to getConnection to be much higher than
the number of calls to close(). I assume that this could be related. I
don't know whether connections were not closed because cleanup
processing did not complete for failing JUnit tests, or something else
is going on, but if you have any suggestions I'm all ears.
What I'll try first is to disable ElipseLink connection pooling and
see how that affects it.
I also hope you can find some time to review the patches I attached to
the bug. You might see something obviously wrong or missing that can
help boost the passing rate when fixed.
Thanks!
Dies
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