[jbossseam-issues] [JBoss JIRA] Updated: (JBSEAM-3977) Seam-gen generate-entities does not work for tables with composite key

[Julien Kronegg (JIRA)]

     [ https://jira.jboss.org/jira/browse/JBSEAM-3977?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Julien Kronegg updated JBSEAM-3977:
-----------------------------------

    Description: 
Generating entities with seam-gen produce an error when the table specified in the seam-gen.reveng.xml file has a composite key:

    freemarker.core.InvalidReferenceException: Expression property.value.identifierGeneratorStrategy is undefined on line 2, column 75 in pojo/GetPropertyAnnotation.ftl

This is because the composite key has null identifier, see https://jira.jboss.org/jira/browse/JBSEAM-562
We've found references for that problem in
  http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4013107
and in
  http://opensource.atlassian.com/projects/hibernate/browse/HBX-1004

Interestingly, we could not reproduce the problem using Seam 2.0.0.GA.

One method to correct that issue is to guard the expression in *.ftl files by something like: property.value.identifierGeneratorStrategy?exists
However, since Seam 2.0.0.GA .ftl files do not have such guards, it must be another way to correct the problem.

Note that the problem is the same for table or views without identifier because Hibernate generates a composite id with all the columns.

  was:
Generating entities with seam-gen produce an error when the table specified in the seam-gen.reveng.xml file has a composite key:

    freemarker.core.InvalidReferenceException: Expression property.value.identifierGeneratorStrategy is undefined on line 2, column 75 in pojo/GetPropertyAnnotation.ftl

This is because the composite key has null identifier, see https://jira.jboss.org/jira/browse/JBSEAM-562
We've found references for that problem in
  http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4013107
and in
  http://opensource.atlassian.com/projects/hibernate/browse/HBX-1004

Interestingly, we could not reproduce the problem using Seam 2.0.0.GA.

One method to correct that issue is to guard the expression in *.ftl files by something like: property.value.identifierGeneratorStrategy?exists
However, since Seam 2.0.0.GA .ftl files do not have such guards, it must be another way to correct the problem



> Seam-gen generate-entities does not work for tables with composite key
> ----------------------------------------------------------------------
>
>                 Key: JBSEAM-3977
>                 URL: https://jira.jboss.org/jira/browse/JBSEAM-3977
>             Project: Seam
>          Issue Type: Bug
>          Components: Tools
>    Affects Versions: 2.1.1.GA
>         Environment: DB2
>            Reporter: Julien Kronegg
>
> Generating entities with seam-gen produce an error when the table specified in the seam-gen.reveng.xml file has a composite key:
>     freemarker.core.InvalidReferenceException: Expression property.value.identifierGeneratorStrategy is undefined on line 2, column 75 in pojo/GetPropertyAnnotation.ftl
> This is because the composite key has null identifier, see https://jira.jboss.org/jira/browse/JBSEAM-562
> We've found references for that problem in
>   http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4013107
> and in
>   http://opensource.atlassian.com/projects/hibernate/browse/HBX-1004
> Interestingly, we could not reproduce the problem using Seam 2.0.0.GA.
> One method to correct that issue is to guard the expression in *.ftl files by something like: property.value.identifierGeneratorStrategy?exists
> However, since Seam 2.0.0.GA .ftl files do not have such guards, it must be another way to correct the problem.
> Note that the problem is the same for table or views without identifier because Hibernate generates a composite id with all the columns.

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