Arrays load the proxy n side

dia100 · **Joined:** Mon Sep 08, 2003 4:30 pm **Posts:** 203

Hi All,

A class declares an array like

Code:

   
 <class name="com.db.device.NEPort" table="ne_port" mutable="true" polymorphism="implicit" dynamic-update="false" dynamic-insert="false">

   <array name="statsArray" cascade="all">
         <key>
            <column name="id_port_stats"/>
         </key>
         <index column="ndx_port_stats"/>
         <one-to-many class="com.db.device.InterfaceStats"/>
      </array>
</class>

Although the com.db.device.InterfaceStats is declared with proxy, it is always retrieved when I get the com.db.device.NEPort class.

Code:

select statsarray0_.id as id__, statsarray0_.id_intf_stats as id_intf_5___, statsarray0_.ndx_intf_stats as ndx_intf6___, statsarray0_.id as id0_, statsarray0_.sampleTime as sampleTime0_ from intf_stats statsarray0_ where statsarray0_.id_intf_stats=?

Why?

TIA,

--steve p.

emmanuel · **Posted:** Wed May 05, 2004 12:03 pm

Show om.db.device.InterfaceStats mapping.

dia100 · **Joined:** Mon Sep 08, 2003 4:30 pm **Posts:** 203

Code:

<hibernate-mapping default-cascade="none" auto-import="true">
    <class name="com.db.device.InterfaceStats" table="intf_stats" mutable="true" polymorphism="implicit" dynamic-update="false" dynamic-insert="false" proxy="com.db.device.InterfaceStats">
      <id name="id" type="long" unsaved-value="0">
         <generator class="native">
         </generator>
      </id>
        <property name="sampleTime" type="int"/>

      <array name="statsForVariablesIngress" cascade="all">
         <key>
            <column name="id_stats_ingress"/>
         </key>
         <index column="ndx_stats_ingress"/>
         <one-to-many class="com.db.device.StatsValue"/>
      </array>

      <array name="statsForVariablesEgress" cascade="all">
         <key>
            <column name="id_stats_egress"/>
         </key>
         <index column="ndx_stats_egress"/>
         <one-to-many class="com.db.device.StatsValue"/>
      </array>

    </class>

</hibernate-mapping>

emmanuel · **Posted:** Thu May 06, 2004 6:03 am

A load() of NEPort shoyuld not load InterfaceStats unless you access it for real.

dia100 · **Joined:** Mon Sep 08, 2003 4:30 pm **Posts:** 203

emmanuel wrote:

A load() of NEPort should not load InterfaceStats unless you access it for real.

Thanks, Emmanuel. That's what I thought it should work.
But it doesn't.

The java code for getting the port object is:

Code:

beginTransaction();
      
NEPort port = (NEPort)session.load(NEPort.class, new Long(10));      
endTransaction(false);

Should I submit a bug to JIRA?

TIA,

--steve p.

dia100 · **Joined:** Mon Sep 08, 2003 4:30 pm **Posts:** 203

Emmanuel (or anybody else),

Could you please confirm if this is a bug or not?

TIA.

emmanuel · **Posted:** Tue May 18, 2004 2:26 am

Actually, I'm not sure this is doable for Arrays.

dia100 · **Joined:** Mon Sep 08, 2003 4:30 pm **Posts:** 203

emmanuel wrote:

Actually, I'm not sure this is doable for Arrays.

Does anybody from Hibernate team know for sure? Maybe Gavin?

TIA,

--steve p.

christian · **Posted:** Tue May 18, 2004 5:21 pm

Arrays can't be lazily initialized (they can't be wrapped by Hibernate), only collections (and Maps).

dia100 · **Joined:** Mon Sep 08, 2003 4:30 pm **Posts:** 203

christian wrote:

Arrays can't be lazily initialized (they can't be wrapped by Hibernate), only collections (and Maps).

Christian,

I am interested if the (proxy) objects contained in an array could be lazily loaded, not the array per se.

I know the array cannot be lazy loaded, but I expect that the members declared as proxy objects

Quote:

not

to be loaded automatically when I first load the array. Is this how it is supposed to work?

Could you please specify?

Thank you so much.

--steve p.

dia100 · **Joined:** Mon Sep 08, 2003 4:30 pm **Posts:** 203

christian wrote:

Arrays can't be lazily initialized (they can't be wrapped by Hibernate), only collections (and Maps).

Christian,

I am interested if the (proxy) objects contained in an array could be lazily loaded, not the array per se.

I know the array cannot be lazy loaded, but I expect that the members declared as proxy objects not to be loaded automatically when I first load the array. Is this how it is supposed to work?

Could you please specify?

Thank you so much.

--steve p.

christian · **Posted:** Tue May 18, 2004 5:29 pm

No, how should that work?