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Boolean Data Type Problem

rab

Dear all,

I used Hibernate ODA Data Source, one of my field (amberWarning) is Boolean data type.
But, i had and exception like below:

A BIRT exception occurred.
Plug-in Provider:Eclipse.org
Plug-in Name:BIRT Data Engine
Plug-in ID:org.eclipse.birt.data
Version:2.5.0.v20090605
Error Code:odaconsumer.CannotPrepareStatement
Error Message:Failed to prepare the following query for the data set type org.jboss.tools.birt.oda.dataSet.
[select amberWarning
from Automotive]
'boolean' is not a valid type.

Any suggestion?

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Comments

mwilliams

Hi rab,

I have not seen this issue before. Also, I have no way of testing this as I don't have hibernate and the sample db does not have a boolean field. What is the data in your boolean field like? 'true/false', 't/f', or '0/1'?

mwilliams

rab,

Also, what all are you doing to connect Hibernate with BIRT? How are you bringing the data in?

Tomas.Vala

Thread bump

Now 2.5 years after the original post, Hibernate ODA driver (version 1.2.0 stable, 1.3.0 milestone/nightly) still doesn't support Boolean data type. Quite sad, isn't it?

Fix is definately possible and quite simple by patching Hibernate ODA driver (sources available from JBoss vendor).

Tomas

CBR

Yes that's sad indeed. I do not think that it is that active. I know that some people are using it. However never got the big advantage of beeing able to use my hibernate entities in a BIRT report. I normally go back to the database directly as it is the best of breed for every reporting tool. If you want to decouple the underlying database structure from the report it is better to use views in the database.
I agree that it might be easier to use your domain model to navigate through the report structure but it normally introduces performance issues because you have to know a lot about the underlying hibernate mapping to avoid such kind of problems.