Trying to understand how ONGL OgnlRuntime setProperty() works

[Tony Evans]

I am trying to understand the basics behind OGNLRuntime.java setProperty, how it is called where it gets the objects the names an the values it is setting.

As I undersant it, it takes a context, a target of type object, a name which is a setter on that target an a value, to set apon that object.

I am trying to figure out, where do the objects, the values an the names come from. Is it of a JSP page params. Is it used to map the paramrs to setters on the action in struts.