Controlling Cascade

himawan · **Joined:** Sat Aug 19, 2006 6:31 pm **Posts:** 139

Hi,

I've read several post about controlling the cascade type while reverse engineering and the answer seems to be "not doable yet".

Is this still the case?
Has anybody found a good way yet?

I basically need to set the default cascade type for certain types of relationships (many-many, many-one, etc).

Thanks in advance.

Budyanto

max · **Posted:** Fri Feb 16, 2007 4:43 am

only currenlty doable by tweaking the templates

himawan · **Joined:** Sat Aug 19, 2006 6:31 pm **Posts:** 139

Thats good enough.

Can you say more Max? I need it for the POJOs by the way.

Budyanto

himawan · **Joined:** Sat Aug 19, 2006 6:31 pm **Posts:** 139

I see one that suggests doing this in hibernate-mapping.hbm.xml.ftl

Code:

<#else>
<hibernate-mapping default-cascade="save-update" >
</#if>

However this will set the cascade for all relationship types.

Budyanto

himawan · **Joined:** Sat Aug 19, 2006 6:31 pm **Posts:** 139

I managed to do it this way.

Modify Ejb3PropertyGetAnnotation.ftl

Code:

<#elseif c2h.isCollection(property)>
<!-- The following line is added to control cascade -->
${property.setCascade("persist,merge")}
${pojo.generateCollectionAnnotation(property, cfg)}
<#else>

Budyanto

himawan · **Joined:** Sat Aug 19, 2006 6:31 pm **Posts:** 139

Actually the above soluton "sorta work". The problem is ManyToMany and OneToMany seems to be controlled within the same if clause. (the isCollection(property)).

Is there a way to separate the two? I'd like to set the ManyToMany cascade to "persists,merge" and OneToMany to "all".

Thanks
Budyanto

himawan · **Joined:** Sat Aug 19, 2006 6:31 pm **Posts:** 139

I seem to be answering my own questions.

I was able to do it this way.

Code:

   <#elseif c2h.isCollection(property)>
      ${property.setCascade("persist,merge")}
      <#if c2h.isOneToManyCollection(property)>
         ${property.setCascade("all")}
      </#if>
      ${pojo.generateCollectionAnnotation(property, cfg)}
   <#else>

chuckzhg · **Joined:** Mon Aug 15, 2005 9:00 pm **Posts:** 37

Max,

Which template and how to tweak it? my project is stuck on this issue when using the tool to generate hbm.xml for hundreds of tables - manually changing hundreds of hbm.xml is not an option - given table definition also change from time to time.

Budyanto, where are these *.ftl ?

Thanks In Advance
chuck

max · **Posted:** Sat Mar 10, 2007 4:30 am

hibernate-tools.jar/hbm/*.ftl

chuckzhg · **Joined:** Mon Aug 15, 2005 9:00 pm **Posts:** 37

Here is what works for me:

add to plugins\org.hibernate.eclipse_3.2.0.beta9a\lib\tools\hibernate-tools.jar/hbm/set.hbm.ftl

<#if c2h.isOneToMany(property)>
cascade="all-delete-orphan"
<#else>
cascade="persist-merge"
</#if>

Thx
Chuck