Action (documentation 1.4.0 API)

Type Parameters:

S - Type of the state object
```
@API(status=MAINTAINED,
     since="1.0")
public interface Action<S>
```
An action class represents a state change that can be preformed on a stateful S. At runtime the execution of an action is regulated by a precondition.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`default boolean`	`precondition(S state)`	If this method returns false, the action will not be performed.
`S`	`run(S state)`	Perform an action on state `S` and return the same state (if it has state) or a new one representing the new state.

- Method Detail
  - precondition
```
default boolean precondition(S state)
```
    If this method returns false, the action will not be performed.
    
    Parameters:
    
    state -
    
    Returns:
  - run
```
S run(S state)
```
    Perform an action on state S and return the same state (if it has state) or a new one representing the new state.
    
    Parameters:
    
    state -
    
    Returns: