Re: lazy loading confusion

[Tom Duffey]

On Sep 27, 2006, at 1:41 AM, Niels Beekman wrote:
Can we see your config?

What all would you like to see?  It's a large application and the  
example I posted is just a snippet.  Here's more from my sql config  
and dao config:

<sqlMapConfig>
    <properties resource="org/projectFoundry/config/jdbc.properties"/>

    <settings enhancementEnabled="true"/>

    <transactionManager type="JDBC">
        <dataSource  type="SIMPLE">
            <property name="JDBC.Driver" value="${JDBC.Driver}"/>
            <property name="JDBC.ConnectionURL" value="$ 
{JDBC.ConnectionURL}"/>
            <property name="JDBC.Username" value="${JDBC.Username}"/>
            <property name="JDBC.Password" value="${JDBC.Password}"/>
        </dataSource>
    </transactionManager>

    <sqlMap resource="org/projectFoundry/persistence/project/ 
ProjectSqlMap.xml"/>
    <sqlMap resource="org/projectFoundry/persistence/user/ 
UserSqlMap.xml"/>
    etc.
</sqlMapConfig>

<daoConfig>
    <context>

        <transactionManager type="SQLMAP">
            <property name="SqlMapConfigResource" value="org/ 
projectFoundry/config/sql-map.xml"/>
        </transactionManager>

        <dao  
interface="org.projectFoundry.persistence.project.ProjectDao"  
implementation="org.projectFoundry.persistence.project.ProjectSqlMapDao" 
/>
        <dao interface="org.projectFoundry.persistence.user.UserDao"  
implementation="org.projectFoundry.persistence.user.UserSqlMapDao"/>
        etc.
  </context>
</daoConfig>

Tom


-----Original Message-----
From: Tom Duffey [mailto:[EMAIL PROTECTED]
Sent: woensdag 27 september 2006 7:34
To: user-java@ibatis.apache.org
Subject: lazy loading confusion

Hi All,

I have a Project class with a list of Members.  It is my
understanding that I can turn on lazy loading in my sql map config,
define a Project result map like:

    <resultMap id="result" class="foo.Project">
         <result property="projectId" column="id"/>
         <result property="members" column="id"
select="Member.listByProject"/>
     </resultMap>

and then retrieve a project and the members will not be retrieved
unless I call getMembers() on the project instance.  Is this how it's
supposed to work?  What I'm finding is that the members list is
populated even if I do not call getMembers().  To back this idea I
renamed the property in the result map to "members2" and added a new
members2 attribute to the project class (To make sure I didn't miss
any calls to getMembers) and sure enough it is still populated when I
retrieve the project.

What gives?  I thought the point of lazy loading was to not load data
unless I ask for it.  I'm using iBATIS 2.1.7 for Java.

Best Regards,

Tom Duffey