Advanced Customization > Services and Infrastructure Customization > Import Export Framework > Navigating Through an Object’s Structure with ObjectSet Application
  
Navigating Through an Object’s Structure with ObjectSet Application
In import/export, a new optional <loadCondition> element under navigation <rule> element has been added. These rules reside in XML files under <Windchill>\codebase\registry\ixb\object_set_handlers.
The <loadCondition> element will have a fully qualified <className> and <methodName>. Object Navigation framework will call the specified method using reflection. The method must be static and must return boolean and must not have arguments. If the specified method returns a true only then the rule will be loaded. In case <loadCondition> is not present, the rule will be loaded by default.
If the <loadCondition> element is present, the framework first calls the specified method to decide if the rule should be loaded or not.
The element looks like:
<loadCondition>

<className>xxxx</className>

<methodName>yyy</methodName>

</loadCondition>
Example:
<loadCondition>

<className>wt.ixb.objectset.ObjectSetHelper</className>

<methodName>isPDMLinkInstalled</methodName>

</loadCondition>