# custom-finder handler
The custom-finder provides coverage for situations where you need a more sophisticated handler and is not worth implement it using a script. In this case a class that implements the FinderHandler interface must be developed, and the custom-finder specifying the name of the class must be used
**Attribute**
**Usage**
className
Name of the FinderHandler class
if
EL expression that must be evaluated to true prior to handler action
unless
EL expression that must be evaluated to false prior to handler action