I'm not seeing the 2cd level cache hit for a List in a base class and I'm wondering if the subclasses inherit the many-to-one link setup in the base class. The object I start with is actually a subtype (not shown here) of the ManagedObject class. I can see the top level object (ManagedObject) hit in the cache but the children nodes associated with the object are retrieved each time from the database.
<?xml version="1.0"?>
<!-- $Id: ManagedObject.hbm.xml,v 1.13 2008/12/15 17:12:19 sudharshan Exp $ -->
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="com.adventnet.nms.topodb">
<class name="ManagedObject"
table="ManagedObject"
dynamic-insert="true"
dynamic-update="true"
select-before-update="true"
discriminator-value="ManagedObject">
<cache usage="read-write"/>
<id name="moid" column="MOID">
<generator class="increment"/>
</id>
<discriminator column="DISCRIMINATOR" type="string" length="30"/>
<natural-id>
<property name="name" type="string" column="NAME" not-null="true" length="255" />
</natural-id>
...skipped properties..
<list name="children" inverse="true" lazy="true" >
<key column="PARENTID" on-delete="cascade"/>
<list-index column="MOID"/>
<one-to-many class="ManagedObject" />
</list>
<many-to-one name="parentId" column="PARENTID" class="ManagedObject"/>
</class>
</hibernate-mapping>
<?xml version="1.0"?>
<!-- $Id: TopoObject.hbm.xml,v 1.3 2008/11/24 11:48:33 sudharshan Exp $ -->
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="com.adventnet.nms.topodb">
<subclass name="TopoObject" extends="ManagedObject"
dynamic-insert="true"
dynamic-update="true"
select-before-update="true"
discriminator-value="TopoObject">
<join table="TopoObject" fetch="select">
<key on-delete="cascade">
<column name="MOID"/>
</key>
<property
name="baseMibs"
type="string"
column="BASEMIBS"
length="100"/>
...skipped properties..
<property
name="writeCommunity"
type="string"
column="WRITECOMMUNITY"
length="100"/>
</join>
</subclass>
</hibernate-mapping>
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