[Hibernate-issues] [Hibernate-JIRA] Closed: (HB-133) Cascading a many-to-one child object in MYSQL

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Message:

   The following issue has been closed.

   Resolver: Gavin King
       Date: Fri, 13 Jun 2003 4:26 AM

As described in the documentation, you must use unsaved-value="0" for a primitive id type.

The User Forum is the correct place for these kinds of issues.
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View the issue:

  http://opensource.atlassian.com/projects/hibernate/secure/ViewIssue.jspa?key=HB-133


Here is an overview of the issue:
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        Key: HB-133
    Summary: Cascading a many-to-one child object in MYSQL
       Type: Bug

     Status: Closed
   Priority: Major
 Resolution: REJECTED

    Project: Hibernate2
 Components: 
             core
   Versions:
             2.0 final

   Assignee: Gavin King
   Reporter: Todd Nine

    Created: Thu, 12 Jun 2003 1:38 PM
    Updated: Fri, 13 Jun 2003 4:26 AM
Environment: Orion Application Server
MY SQL DB
Java 1.4.1_02

Description:
This is a concrete example of the Cascades.isUnsaved(Serializable id) error.

We have 2 class Customer and Address, Address is a child of Customer.

if we have the following in the Customer.hbm.xml file:

<many-to-one name="address" class="com.sigma.webtools.modal.services.facades.facadechildren.Address" cascade="all"/>

and Address.hbm.xml is the following

<hibernate-mapping>
    <class name="com.sigma.webtools.modal.services.facades.facadechildren.Address" table="WTS_ADDRESS">
        <id name="id"  type="long">
            <generator class="native"/>
        </id>
        <property name="firstName"  type="string"/>
        <property name="lastName"  type="string"/>
        <property name="address1"  type="string"/>
        <property name="address2"  type="string"/>
        <property name="address3"  type="string"/>
        <property name="city"  type="string"/>
        <property name="state"  type="string"/>
        <property name="zip"  type="string"/>
        <property name="contact"  type="string"/>
        <property name="deliveryType"  type="string"/>
        <property name="addressType"  type="string"/>

    </class>
</hibernate-mapping>

when the generator is "native" and the variable type is a primitive numberic, the following will return 0;

//line 1210 in file net.sf.hibernate.impl.SessionImpl
Serializable id = persister.getIdentifier(object); 

Therefore, when the following is called 
if ( persister.isUnsaved(id))

The following evaluates false

return id==null;

The child object will not be saved because an update is called instead of a save.




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