[Hibernate-issues] [Hibernate-JIRA] Created: (HHH-1776) Extra Lazy collection, wrong size

[Ecmel E. (JIRA) <no...@at...>]

Extra Lazy collection, wrong size
---------------------------------

         Key: HHH-1776
         URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1776
     Project: Hibernate3
        Type: Bug

    Versions: 3.2.0.cr2    
 Environment: HSQLDB 1.8.0.4
    Reporter: Ecmel Ercan


I have the following mappings: 


<hibernate-mapping> 

    <class name="TestParent" table="TESTPARENT"> 
        <id name="id" column="ID"> 
            <generator class="native"/> 
        </id> 

        <list name="children" lazy="extra"> 
            <key column="PARENT_ID" /> 
            <list-index column="id"/> 
            <one-to-many class="TestChild" /> 
        </list> 
                
    </class> 
    
</hibernate-mapping> 


<hibernate-mapping> 

    <class name="TestChild" table="TESTCHILD"> 
        <id name="id" column="ID"> 
            <generator class="native"/> 
        </id> 
                
        <many-to-one name="parent" column="id" class="TestParent" />        
    
    </class> 
  
</hibernate-mapping> 

When I get the size of the children by: 

System.out.println(parent.getChildren().size()); 


the following query is issued: 

select max(id) + 1 from TESTCHILD where PARENT_ID =? 

This assumes a sequential id column with no deleted rows. I expect a count(id) query. 

Strangely, if I map the same class with annotations, a count(id) query is issued, but the collection will not be extra lazy as I mentioned in the annotations forum: http://forum.hibernate.org/viewtopic.php?t=959249



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