UniqueKillSwitch

java.lang.Object
- akka.stream.UniqueKillSwitch

All Implemented Interfaces:

KillSwitch
```
public final class UniqueKillSwitch
extends java.lang.Object
implements KillSwitch
```
A UniqueKillSwitch is always a result of a materialization (unlike SharedKillSwitch which is constructed before any materialization) and it always controls that graph and operator which yielded the materialized value.
After calling shutdown() the running instance of the Graph of FlowShape that materialized to the UniqueKillSwitch will complete its downstream and cancel its upstream (unless if finished or failed already in which case the command is ignored). Subsequent invocations of completion commands will be ignored.
After calling abort(java.lang.Throwable) the running instance of the Graph of FlowShape that materialized to the UniqueKillSwitch will fail its downstream with the provided exception and cancel its upstream (unless if finished or failed already in which case the command is ignored). Subsequent invocations of completion commands will be ignored.
It is also possible to individually cancel, complete or fail upstream and downstream parts by calling the corresponding methods.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`abort(java.lang.Throwable ex)`	After calling `abort(java.lang.Throwable)` the running instance of the `Graph` of `FlowShape` that materialized to the `UniqueKillSwitch` will fail its downstream with the provided exception and cancel its upstream (unless if finished or failed already in which case the command is ignored).
`void`	`shutdown()`	After calling `shutdown()` the running instance of the `Graph` of `FlowShape` that materialized to the `UniqueKillSwitch` will complete its downstream and cancel its upstream (unless if finished or failed already in which case the command is ignored).
`java.lang.String`	`toString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Method Detail
  - abort
```
public void abort(java.lang.Throwable ex)
```
    After calling abort(java.lang.Throwable) the running instance of the Graph of FlowShape that materialized to the UniqueKillSwitch will fail its downstream with the provided exception and cancel its upstream (unless if finished or failed already in which case the command is ignored). Subsequent invocations of completion commands will be ignored.
    
    Specified by:
    
    abort in interface KillSwitch
  - shutdown
```
public void shutdown()
```
    After calling shutdown() the running instance of the Graph of FlowShape that materialized to the UniqueKillSwitch will complete its downstream and cancel its upstream (unless if finished or failed already in which case the command is ignored). Subsequent invocations of completion commands will be ignored.
    
    Specified by:
    
    shutdown in interface KillSwitch
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object