All Packages Class Hierarchy This Package Previous Next Index
Interface org.webmacro.util.PropertyReference
- public interface PropertyReference
This is a generic interface which PropertyOperator users may
wish to subclass from. The intent is that implementors of this
class may use PropertyOperator to examine the context in order
to extract some kind of value, which is returned.
-
evaluate(Object)
- Apply this object to the supplied context and return
the appropriate reference.
evaluate
public abstract Object evaluate(Object context) throws InvalidContextException
- Apply this object to the supplied context and return
the appropriate reference.
- Parameters:
- context - An object which may be introspected for information
- Returns:
- The appropriate value given this context
- Throws: InvalidContextException
- required data not found in context
All Packages Class Hierarchy This Package Previous Next Index