[jboss-jira] [JBoss JIRA] (HIBERNATE-119) one-to-one with property-ref always non-lazy

[Steve Ebersole (JIRA)]

    [ https://issues.jboss.org/browse/HIBERNATE-119?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13130918#comment-13130918 ] 

Steve Ebersole commented on HIBERNATE-119:
------------------------------------------

This is not the correct project to report Hibernate issues under. This Jira project is for reporting issues in the integration between Hibernate and WildFly. To report issues in Hibernate, please use https://hibernate.atlassian.net. Thanks.


> one-to-one with property-ref always non-lazy
> --------------------------------------------
>
>                 Key: HIBERNATE-119
>                 URL: https://issues.jboss.org/browse/HIBERNATE-119
>             Project: Hibernate Integration
>          Issue Type: Feature Request
>            Reporter: Sandeep Vaid
>            Assignee: Steve Ebersole
>
> I have one-to-one relationship between Product and ProductBasic.
> PRODUCT ------> PRODUCTID(PK)
> PRODUCT ------> PID, CODE, STARTTIME (Composite-key) and PID is FK
> In product.hbm.xml
>  <one-to-one name="productBasic" cascade="save-update" property-ref="activeProduct" constrained="true">
>     <formula>PRODUCTID</formula>
>  </one-to-one>
>  
>  
>  ProductBasic.hbm.xml as :
>  <properties name="activeProduct">
>    <many-to-one name="product" class="Product"  insert="false" update="false" lazy="proxy" />
>  </properties>
>   
>   
>   When i am using property-ref, and try to load all Products, it fetches ProductBasic also as :
>   select * from PRODUCT;   //suppose it return 2 records with productId as 100 and 101 respectively.
>   select * from PRODUCTBASIC where productId='100'
>   select * from PRODUCTBASIC where productId='101'
>  
>   How can i fetch ProductBasic in a Non-Lazy manner in this case.
> I found few information regarding my problem as :
> https://forum.hibernate.org/viewtopic.php?f=25&t=969713
>  NOTE: Without property-ref, we can load one-to-one lazily (by sepcifying constrained="true")....... outer-join="true"
>   It's shows the message as :
>   DEBUG - total objects hydrated: 1
>   DEBUG - resolving associations for [model.Product#1]
>   DEBUG - loading entity: [model.ProductName#1]
>   DEBUG - creating new proxy for entity
>   DEBUG - done materializing entity [model.Product#1]
>  
>   Now the thing now remaining in this is to load one-to-one lazily with property-ref.
>   EntityType.resolve() line 382
>       if ( isReferenceToPrimaryKey() ) {
>  	return resolveIdentifier( (Serializable) value, session );
>        }
>       else {
>         return loadByUniqueKey( getAssociatedEntityName(), uniqueKeyPropertyName, value, session );
>        }
>      
>      and in loadByUniqueKey() method, there is a comment :
>      //TODO: implement caching?! proxies?!
>      
>    I think this is the culprit  



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