Update (Pravega API)

Type Parameters:

StateT - The type of the object being updated

All Known Subinterfaces:

InitialUpdate<StateT>
```
public interface Update<StateT extends Revisioned>
```
An update to a StateT object coordinated via a StateSynchronizer.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`StateT`	`applyTo(StateT oldState, Revision newRevision)`	Return an object of type StateT that is the same as oldState with this update applied to it.

- Method Detail
  - applyTo
```
StateT applyTo(StateT oldState,
               Revision newRevision)
```
    Return an object of type StateT that is the same as oldState with this update applied to it. Invoking Revisioned.getRevision() on the result should return newRevision.
    
    Parameters:
    
    oldState - The state to which should be used as the basis for the new state.
    
    newRevision - The revision for the new state.
    
    Returns:
    
    A state that represents a state with this update applied to it. (If StateT is mutable and the update is done in-place this is the same object as oldState)