PreviousNext (GRIP API)

All Known Implementing Classes:

MultiImageFileSource
```
public interface PreviousNext
```
An Object that can switch its value.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`next()`	Perform the next action on this object.
`void`	`previous()`	Perform the previous action on this object.

- Method Detail
  - next
```
void next()
```
    Perform the next action on this object.
  - previous
```
void previous()
```
    Perform the previous action on this object.