StripedExecutor (vespajlib 7.531.17 API)

java.lang.Object
- com.yahoo.concurrent.StripedExecutor<Key>

```
public class StripedExecutor<Key>
extends Object
```
Executor that serializes runnables with the same key, but may parallelize over different keys.

Author:

jonmv

Constructor Summary

Constructors
Constructor	Description
`StripedExecutor()`	Creates a new StripedExecutor which delegates to a `Executors.newCachedThreadPool(ThreadFactory)`.
`StripedExecutor(ExecutorService executor)`	Creates a new StripedExecutor which delegates to the given executor service.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`execute(Key key, Runnable command)`	Executes the given command.
`void`	`shutdownAndWait()`	Shuts down the delegate executor and waits for it to terminate.
`void`	`shutdownAndWait(Duration grace, Duration die)`	Shuts down the delegate executor and waits for the given grace duration for it to terminate.

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

- Constructor Detail
  - StripedExecutor
```
public StripedExecutor()
```
    Creates a new StripedExecutor which delegates to a Executors.newCachedThreadPool(ThreadFactory).
  - StripedExecutor
```
public StripedExecutor(ExecutorService executor)
```
    Creates a new StripedExecutor which delegates to the given executor service.
- Method Detail
  - execute
```
public void execute(Key key,
                    Runnable command)
```
    Executes the given command. If other commands are already running or queued for the given key, execution of this command happens after those, on the same thread as is running them.
    Any exception thrown by the command will only be logged, to allow subsequent commands to run.
  - shutdownAndWait
```
public void shutdownAndWait()
```
    Shuts down the delegate executor and waits for it to terminate.
  - shutdownAndWait
```
public void shutdownAndWait(Duration grace,
                            Duration die)
```
    Shuts down the delegate executor and waits for the given grace duration for it to terminate. If this fails, tells the executor to ExecutorService.shutdownNow()), and waits for the die duration.