Package org.eclipse.jetty.util

Class Blocker

java.lang.Object

org.eclipse.jetty.util.Blocker

public class Blocker
extends Object

Utility class that provides blocking Runnable and Callback instances. These can either be shared (and mutually excluded from concurrent usage) or single usage. The instances are autocloseable and will emit a warning if the instance is not completed within close.

Non shared Runnable

     try(Blocker.Runnable onAction = Blocker.runnable())
     {
         someMethod(onAction);
         onAction.block();
     }
 

Shared Runnable

     Blocker.SharedRunnable shared = new Blocker.Shared();
     // ...
     try(Blocker.Runnable onAction = shared.runnable())
     {
         someMethod(onAction);
         onAction.block();
     }
 

Non shared Callback

     try(Blocker.Callback callback = Blocker.callback())
     {
         someMethod(callback);
         callback.block();
     }
 

Shared Callback

     Blocker.Shared blocker = new Blocker.Shared();
     // ...
     try(Blocker.Callback callback = blocker.callback())
     {
         someMethod(callback);
         callback.block();
     }
 

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	Blocker.Callback
static interface	Blocker.Runnable
static class	Blocker.Shared	A shared reusable Blocking source.

Constructor Summary

Constructors

Constructor	Description
Blocker()

Method Summary

Modifier and Type	Method	Description
static Blocker.Callback	callback()
static Blocker.Runnable	runnable()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Blocker

public Blocker()

Method Details

runnable

public static Blocker.Runnable runnable()

callback

public static Blocker.Callback callback()