Package com.complexible.common.view

Interface View<Input,Output>

All Known Subinterfaces:

AdminConnectionView<Input,Output>, ConnectionView<I,O>

public interface View<Input,Output>

Function which supports a polymorphic view of one class as another

Since:

2.2

Version:

2.2

Author:

Michael Grove

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	View.ViewException	Exception to indicate the reason a view failed.

Method Summary

Modifier and Type	Method	Description
Output	as(Input theV)	Transform the object into the new view.
boolean	canView(Input theInput, Class<Output> theView)	Return whether or not the provided type of object can be viewed as the desired type.

Method Details

as

Output as(Input theV)
   throws View.ViewException

Transform the object into the new view.

Parameters:

theV - the object to change

Returns:

the view of the object

Throws:

View.ViewException - if there was an error changing the view of the object.

canView

boolean canView(Input theInput,
 Class<Output> theView)

Return whether or not the provided type of object can be viewed as the desired type. If true, calls to as(Input) will always succeed.

Parameters:

theInput - the type of the object whose view is to be changed

theView - the type of view we want.

Returns:

true if the object can be viewed as the view class, false otherwise.