ThreadPool (Jetty :: Project 9.4.56.v20240826 API)

All Superinterfaces:

java.util.concurrent.Executor

All Known Subinterfaces:

ThreadPool.SizedThreadPool

All Known Implementing Classes:

DelegatingThreadPool, ExecutorSizedThreadPool, ExecutorThreadPool, MonitoredQueuedThreadPool, QueuedThreadPool
```
@ManagedObject("Pool of Threads")
public interface ThreadPool
extends java.util.concurrent.Executor
```
A pool for threads.

A specialization of Executor interface that provides reporting methods (eg getThreads()) and the option of configuration methods (e.g. @link ThreadPool.SizedThreadPool.setMaxThreads(int)).

Nested Class Summary

Nested Classes
Modifier and Type	Interface	Description
`static interface`	`ThreadPool.SizedThreadPool`	Specialized sub-interface of ThreadPool that allows to get/set the minimum and maximum number of threads of the pool.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`int`	`getIdleThreads()`
`int`	`getThreads()`
`boolean`	`isLowOnThreads()`
`void`	`join()`	Blocks until the thread pool is `stopped`.

Methods inherited from interface java.util.concurrent.Executor
execute

- Method Detail
  - join
```
void join()
   throws java.lang.InterruptedException
```
    Blocks until the thread pool is stopped.
    
    Throws:
    
    java.lang.InterruptedException - if thread was interrupted
  - getThreads
```
@ManagedAttribute("number of threads in pool")
int getThreads()
```
    Returns:
    
    The total number of threads currently in the pool
  - getIdleThreads
```
@ManagedAttribute("number of idle threads in pool")
int getIdleThreads()
```
    Returns:
    
    The number of idle threads in the pool
  - isLowOnThreads
```
@ManagedAttribute("indicates the pool is low on available threads")
boolean isLowOnThreads()
```
    Returns:
    
    True if the pool is low on threads