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Hibernate version:
3.0.3
Mapping documents:
<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping
>
<class
name="net.sf.webfeeds.model.persistence.userfeed.UserFeed"
table="USER_FEED"
>

<id
name="id"
column="USF_ID_USERFEED"
type="java.lang.Long"
>
<generator class="identity">
<!--
To add non XDoclet generator parameters, create a file named
hibernate-generator-params-UserFeed.xml
containing the additional parameters and place it in your merge dir.
-->
</generator>
</id>

<version
name="version"
column="VERSION"
type="java.util.Calendar"
/>

<property
name="title"
type="java.lang.String"
update="true"
insert="true"
column="USF_TITLE"
/>

<property
name="digest"
type="boolean"
update="true"
insert="true"
column="USF_DIGEST"
/>

<many-to-one
name="category"
class="net.sf.webfeeds.model.persistence.category.Category"
cascade="none"
outer-join="auto"
update="true"
insert="true"
column="CTR_ID_CATEGORY"
/>

<many-to-one
name="feed"
class="net.sf.webfeeds.model.persistence.feed.Feed"
cascade="none"
outer-join="auto"
update="true"
insert="true"
column="FDS_ID_FEED"
/>

<many-to-one
name="user"
class="net.sf.webfeeds.model.persistence.user.User"
cascade="none"
outer-join="auto"
update="true"
insert="true"
column="USR_ID_USER"
/>

<!--
To add non XDoclet property mappings, create a file named
hibernate-properties-UserFeed.xml
containing the additional properties and place it in your merge dir.
-->

</class>

</hibernate-mapping>

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping
>
<class
name="net.sf.webfeeds.model.persistence.category.Category"
table="CATEGORY"
>

<id
name="id"
column="CTR_ID_CATEGORY"
type="java.lang.Long"
>
<generator class="identity">
<!--
To add non XDoclet generator parameters, create a file named
hibernate-generator-params-Category.xml
containing the additional parameters and place it in your merge dir.
-->
</generator>
</id>

<version
name="version"
column="VERSION"
type="java.util.Calendar"
/>

<property
name="color"
type="java.lang.String"
update="true"
insert="true"
column="CTR_COLOR"
/>

<property
name="title"
type="java.lang.String"
update="true"
insert="true"
column="CTR_TITLE"
/>

<set
name="userFeeds"
lazy="false"
inverse="true"
cascade="delete"
sort="unsorted"
>

<key
column="CTR_ID_CATEGORY"
>
</key>

<one-to-many
class="net.sf.webfeeds.model.persistence.userfeed.UserFeed"
/>

</set>

<many-to-one
name="group"
class="net.sf.webfeeds.model.persistence.group.Group"
cascade="none"
outer-join="auto"
update="true"
insert="true"
column="GRP_ID_GROUP"
/>

<!--
To add non XDoclet property mappings, create a file named
hibernate-properties-Category.xml
containing the additional properties and place it in your merge dir.
-->

</class>

</hibernate-mapping>


Hello there! As you can check my mapping above I have a many-to-one relation with Feed. This pojo UserFeed is a Set (not a lazy one) in another class: Category. When I load a given category, it comes with the userFeeds, but the relation userFeed -> Feed is null. When accessing it I get "could not initialize proxy - the owning Session was closed". (this used to work on 2.1.7). What is happening? Does 3.0 comes with lazy many-to-one relationships???


Thanks

Vinicius

Are you using spring's HibernateTemplate, it will close the session as early as possible.

I think I have got the answer, in hibernate-mapping-3.0.dtd, it has this define code :



set default-lazy = "false" and try again, good luck[/code]