Is there a way to add Cascade=All to the mapping file?

Jake123 · **Posted:** Thu Mar 20, 2008 11:37 pm

Hi All,
I would like to be able to add cascade=All to my hbm.xml where I have one-to-many relations... I know I can do this manually or writing a Ant task that can search through the mapping files and add this... but I wonder if this is posible to do with Hibernate Tools? I am Using Hibernate Tools 3.2.0.GA

Thanks in advance,
Jacob

Sukirtha · **Posted:** Mon Mar 24, 2008 7:05 am

U can modify the .ftl files available inside the hibernate-tools.jar to suit your requirement. You can make almost any kind of change there to get your desired default behavior. Hibernate-tools.jar/hbm/many-to-one.ftl file would be a good place to start looking

Jake123 · **Posted:** Mon Mar 24, 2008 10:15 am

Sukirtha wrote:

U can modify the .ftl files available inside the hibernate-tools.jar to suit your requirement. You can make almost any kind of change there to get your desired default behavior. Hibernate-tools.jar/hbm/many-to-one.ftl file would be a good place to start looking

Thanks for the answer,
I knew I can modify the template files, but I was more interested in a build in solution. In this thread from September 2006 Max said that at this time it doesn't exist, but might be added later...

http://forum.hibernate.org/viewtopic.ph ... ht=cascade

In this thread the user Arnon posted his solution where he in ant defined how to do this :

Quote:

<replaceregexp byline="true"
match="(set name=.billItems. inverse=.true.)"
replace="\1 cascade="all"">
<fileset dir="${model.dir}/hbm">
<include name="Bill.hbm.xml"/>
<include name="BillLineItem.hbm.xml"/>
</fileset>
</replaceregexp>
<replaceregexp byline="true"
match="(many-to-one .* fetch=.select.)"
replace="\1 cascade="save-update,persist"">
<fileset dir="${model.dir}/hbm">
<include name="BillItem.hbm.xml"/>
</fileset>
</replaceregexp>

But if you have a lot of tables this is really time consuming work...

Any updates on this Max?

Thanks in advance,
Jacob

Jake123 · **Posted:** Mon Mar 24, 2008 6:37 pm

Hi, I am looking in the many-to-on.hbm.ftl and I see this:

Quote:

<#if property.cascade != "none">
cascade="${property.cascade}"
</#if>

Where does this property.cascade come from and can I configure that property for each tables?

thanks for any pointers..
Jacob

Sukirtha · **Posted:** Tue Mar 25, 2008 12:05 am

Hi Jake,
"property" is passed into the many-to-one.ftl file by the calling .ftl file (In this case I guess it is persistentclass.ftl). So the calling .ftl file passes the property value to the called many-to-one.ftl file.

property.cascade holds the value for cascade based on the database table.

To achieve your purpose

Code:

<#if property.cascade != "none">
        cascade="${property.cascade}"
</#if>

can be changed to

Code:

<#if property.cascade != "none">
        cascade="all"
</#if>

Doing this will make all your many-to-one relations to have a cascade value set to "all" if the cascade is not explicitly set to none in the table.

max · **Posted:** Tue Mar 25, 2008 1:55 pm

sukirtha - exactly ;)

ReX · **Posted:** Tue May 13, 2008 12:42 pm

Hi

I have the some problem. I apply this solution but generated hbl.xml files don't have the property cascade="all" in the many-to-one elements.

I edit the hibernate-tools.jar included in my Hibernate Tools Eclipse plugin changing the many-to-one.ftl how Sukirtha explain, after remove all generated files (pojos, mapping and soa) and regenerated all files with the Hibernate Code Generator.

Thanks

Sukirtha · **Posted:** Wed May 14, 2008 3:06 am

Please post your build script.

1) Have you included the path of the customized .ftl files as the value for the templatepath attribute of the hibernatetools task?

2) where have you placed the modified .ftl files?

Sukirtha · **Posted:** Wed May 14, 2008 4:39 am

Since you are using the pluggin, I am not sure how you add a reference to the modified .ftl files. The previous posts all dealt with ant scripts for code generation. Just make sure your pluggin uses the modified ftls.

max · **Posted:** Wed May 14, 2008 6:37 am

you shouldnt be editing the templates inside the hibernatetools.jar.

Use template path - it is called that in the plugin AND in the ant scripts.

ReX · **Posted:** Wed May 14, 2008 3:10 pm

Thanks max and Sukirtha, now understand more about the tools.

All references to templates in hibernate assumes use of ANT, and for now I only uses the eclipse plugin and the generator don't apply my template.

I create a directory called 'templates' in the basedir, then a file called many-to-one.ftl, a simple copy of the included file with the Sukirtha suggest changes. Finally, when run the code generator I activate the 'Use custom templates' check and set the template directory. I'm thinking in a missed step, because, where I set when my template was applied?

Please, any help is appreciate.

max · **Posted:** Wed May 14, 2008 5:35 pm

did you remember to also keep the dir structure ?

<templatepath>/many-to-one.ftl is different from <tempaltepath>/hbm/many-to-one.ftl

/max