Hibernate não esta fazendo cache

Assuntos Gerais
#1

Hibernate version:
3.1.3

Mapping documents:

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>
  <class table="activation" name="pragya.usc.activation.Activation">
    <cache usage="read-write"/>
    <id name="id">
      <generator class="identity"/>
    </id>
    <property name="startDate" not-null="false" column="initialdatetime"/>
    <property name="endDate" not-null="false" column="finaldatetime"/>
    <property name="ani" not-null="false" length="30"/>
    <property name="dnis" not-null="false" length="30"/>
    <property name="enable" not-null="false" column="isenable"/>
    <many-to-one column="id_voicemenu" lazy="proxy" name="voiceMenu"/>
    <many-to-one column="fk_portal" lazy="proxy" name="portal"/>
    <property name="promptPath" not-null="false" length="200" column="path_prompt"/>
    <property name="serviceId" not-null="false" column="id_service"/>
    <property name="templateId" not-null="false" column="id_template"/>
    <property name="accessType" not-null="false" length="20" column="type_access"/>
    <property name="vxmlPath" not-null="false" length="200" column="path_vxml"/>
    <many-to-one column="id_childportal" lazy="proxy" name="childPortal"/>
    <property name="permissionServiceId" column="fk_id_permissionservice"/>
    <joined-subclass name="com.pragya.usc.activation.business.ActivationSMS" table="activationsms">
      <key column="fk_id_activation"/>
      <map table="activationsms_keyword" lazy="false" inverse="false" sort="natural" cascade="all-delete-orphan" name="keywords">
        <cache usage="read-write"/>
        <key column="fk_id_activation"/>
        <map-key type="string" formula="keyword"/>
        <element type="string" column="keyword"/>
      </map>
    </joined-subclass>
  </class>
</hibernate-mapping>

Code between sessionFactory.openSession() and session.close():

First query:

      Query query = session.createQuery("from Activation activation where activation.class = Activation");
      query.setCacheable(true);
      List activation = query.list();

Second query:

      Query query = session
            .createQuery("from Activation activation where activation.class = Activation and ? between activation.startDate and activation.endDate and activation.enable = ? ");
      query.setTimestamp(0, date);
      query.setBoolean(1, enable);
      query.setCacheable(true);

      List activations = query.list();

Name and version of the database you are using:
PostgreSQL 8.0.4

The generated SQL (show_sql=true):

First query:

select activation0_.id as id16_, activation0_.initialdatetime as initiald2_16_, activation0_.finaldatetime as finaldat3_16_, activation0_.ani as ani16_, activation0_.dnis as dnis16_, activation0_.isenable as isenable16_, activation0_.id_voicemenu as id7_16_, activation0_.fk_portal as fk8_16_, activation0_.path_prompt as path9_16_, activation0_.id_service as id10_16_, activation0_.id_template as id11_16_, activation0_.type_access as type12_16_, activation0_.path_vxml as path13_16_, activation0_.id_childportal as id14_16_, activation0_.fk_id_permissionservice as fk15_16_, case when activation0_1_.fk_id_activation is not null then 1 when activation0_.id is not null then 0 end as clazz_ from activation activation0_ left outer join activationsms activation0_1_ on activation0_.id=activation0_1_.fk_id_activation where case when activation0_1_.fk_id_activation is not null then 1 when activation0_.id is not null then 0 end=0

Second query:

select activation0_.id as id16_, activation0_.initialdatetime as initiald2_16_, activation0_.finaldatetime as finaldat3_16_, activation0_.ani as ani16_, activation0_.dnis as dnis16_, activation0_.isenable as isenable16_, activation0_.id_voicemenu as id7_16_, activation0_.fk_portal as fk8_16_, activation0_.path_prompt as path9_16_, activation0_.id_service as id10_16_, activation0_.id_template as id11_16_, activation0_.type_access as type12_16_, activation0_.path_vxml as path13_16_, activation0_.id_childportal as id14_16_, activation0_.fk_id_permissionservice as fk15_16_, case when activation0_1_.fk_id_activation is not null then 1 when activation0_.id is not null then 0 end as clazz_ from activation activation0_ left outer join activationsms activation0_1_ on activation0_.id=activation0_1_.fk_id_activation where case when activation0_1_.fk_id_activation is not null then 1 when activation0_.id is not null then 0 end=0 and (? between activation0_.initialdatetime and activation0_.finaldatetime) and activation0_.isenable=?

Pessoal,

Estou tendo problemas com second level cache do hibernate.
Antes tinha percebido que queries sobre classes que tenham joined-subclass precisavam de ter o cache de query habilitado por que sem isso ele não funcionava. Para isso na primeira query do meu post eu coloquei query.setCacheable(true) isso fez com que a query ficasse em cache. Porém ao implementar uma segunda query mesmo setando como query.setCacheable(true) ela não fica no cache. Alguma dica??

Flavio Suguimoto

#2