Skip to main content

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [List Home]
Re: [eclipselink-users] Query.getResultList() returns null if the table does not exist

Confirmed, this is fixed in trunk. Thank you!

Gili


Christopher Delahunt wrote:
> 
> What version are you using?  Chances are you are hitting a bug fixed in 
> the transaction for bug 247022 that caused the exception to be silently 
> ignored - try the latest nightly.
> 
> MySQL should be throwing an exception, something like 
> "MySQLSyntaxErrorException: Table 'yourtable' doesn't exist", which will 
> be wrapped in a
> org.eclipse.persistence.exceptions.DatabaseException Runtime exception 
> type.  
> 
> Regards,
> Chris
> 
> 
> 
> cowwoc wrote:
>> I am using MySQL. I did "drop database Foo; create database Foo;" and
>> re-ran
>> my application. It worked fine up until this code returned null:
>>
>> 	@Transactional(rollbackOn = Exception.class)
>> 	public List<Terminal> listTerminals()
>> 	{
>> 		Query query = em.get().createQuery("select terminal from " +
>> Terminal.class.getSimpleName() +
>> 			" as terminal");
>> 		@SuppressWarnings("unchecked")
>> 		List<Terminal> result = query.getResultList();
>> 		return result;
>> 	}
>>
>> PS: Throwing SQLException seems a bit contrived. The Javadoc says only
>> IllegalStateException may be thrown and as far as I know SQLException is
>> a
>> checked exception.
>>
>> Gili
>>
>>
>> Christopher Delahunt wrote:
>>   
>>> I don't understand how you are not getting an exception if the table 
>>> does not exist.  Can you show how you create and execute the query?
>>> Running on an Oracle DB, I get a SQLException: ORA-00942: table or view 
>>> does not exist. 
>>>
>>> Best Regards,
>>> Chris
>>>
>>>
>>>
>>> cowwoc wrote:
>>>     
>>>> Ooops, "empty set" should read "empty list".
>>>>
>>>> Gili
>>>>
>>>>
>>>> cowwoc wrote:
>>>>   
>>>>       
>>>>> I am expecting it to return an empty set as per "Effective Java" best
>>>>> practices. I'd like to file a bug report for this. What do you think?
>>>>>
>>>>> PS: Anyone working on JPA 2.0 should please clarify the Javadoc on
>>>>> this
>>>>> point.
>>>>>
>>>>> Gili
>>>>>
>>>>>     
>>>>>         
>>>>   
>>>>       
>>> _______________________________________________
>>> eclipselink-users mailing list
>>> eclipselink-users@xxxxxxxxxxx
>>> https://dev.eclipse.org/mailman/listinfo/eclipselink-users
>>>
>>>
>>>     
>>
>>   
> _______________________________________________
> eclipselink-users mailing list
> eclipselink-users@xxxxxxxxxxx
> https://dev.eclipse.org/mailman/listinfo/eclipselink-users
> 
> 

-- 
View this message in context: http://www.nabble.com/Query.getResultList%28%29-returns-null-if-the-table-does-not-exist-tp20667095p20671434.html
Sent from the EclipseLink - Users mailing list archive at Nabble.com.



Back to the top