java.lang.Object
- java.nio.channels.spi.AsynchronousChannelProvider

```
public abstract class AsynchronousChannelProvider
extends Object
```
Service-provider class for asynchronous channels.
An asynchronous channel provider is a concrete subclass of this class that has a zero-argument constructor and implements the abstract methods specified below. A given invocation of the Java virtual machine maintains a single system-wide default provider instance, which is returned by the provider method. The first invocation of that method will locate the default provider as specified below.
All of the methods in this class are safe for use by multiple concurrent threads.

Since:

1.7

Constructor Summary

Constructors
Modifier Constructor and Description

protected AsynchronousChannelProvider()
Initializes a new instance of this class.

Method Summary

Methods
Modifier and Type	Method and Description
`abstract AsynchronousChannelGroup`	`openAsynchronousChannelGroup(ExecutorService executor, int initialSize)` Constructs a new asynchronous channel group with the given thread pool.
`abstract AsynchronousChannelGroup`	`openAsynchronousChannelGroup(int nThreads, ThreadFactory threadFactory)` Constructs a new asynchronous channel group with a fixed thread pool.
`abstract AsynchronousServerSocketChannel`	`openAsynchronousServerSocketChannel(AsynchronousChannelGroup group)` Opens an asynchronous server-socket channel.
`abstract AsynchronousSocketChannel`	`openAsynchronousSocketChannel(AsynchronousChannelGroup group)` Opens an asynchronous socket channel.
`static AsynchronousChannelProvider`	`provider()` Returns the system-wide default asynchronous channel provider for this invocation of the Java virtual machine.

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

- Constructor Detail
  - AsynchronousChannelProvider
```
protected AsynchronousChannelProvider()
```
    Initializes a new instance of this class.
    
    Throws:
    
    SecurityException - If a security manager has been installed and it denies RuntimePermission("asynchronousChannelProvider")
- Method Detail
  - provider
```
public static AsynchronousChannelProvider provider()
```
    Returns the system-wide default asynchronous channel provider for this invocation of the Java virtual machine.
    The first invocation of this method locates the default provider object as follows:
    1. If the system property java.nio.channels.spi.AsynchronousChannelProvider is defined then it is taken to be the fully-qualified name of a concrete provider class. The class is loaded and instantiated; if this process fails then an unspecified error is thrown.
    2. If a provider class has been installed in a jar file that is visible to the system class loader, and that jar file contains a provider-configuration file named java.nio.channels.spi.AsynchronousChannelProvider in the resource directory META-INF/services, then the first class name specified in that file is taken. The class is loaded and instantiated; if this process fails then an unspecified error is thrown.
    3. Finally, if no provider has been specified by any of the above means then the system-default provider class is instantiated and the result is returned.
    Subsequent invocations of this method return the provider that was returned by the first invocation.
    Returns:
    The system-wide default AsynchronousChannel provider
  - openAsynchronousChannelGroup
```
public abstract AsynchronousChannelGroup openAsynchronousChannelGroup(int nThreads,
                                                    ThreadFactory threadFactory)
                                                               throws IOException
```
    Constructs a new asynchronous channel group with a fixed thread pool.
    
    Parameters:
    nThreads - The number of threads in the pool
    threadFactory - The factory to use when creating new threads
    
    Throws:
    
    IllegalArgumentException - If nThreads <= 0
    
    IOException - If an I/O error occurs
    See Also:
    AsynchronousChannelGroup.withFixedThreadPool(int, java.util.concurrent.ThreadFactory)
  - openAsynchronousChannelGroup
```
public abstract AsynchronousChannelGroup openAsynchronousChannelGroup(ExecutorService executor,
                                                    int initialSize)
                                                               throws IOException
```
    Constructs a new asynchronous channel group with the given thread pool.
    
    Parameters:
    executor - The thread pool
    initialSize - A value >=0 or a negative value for implementation specific default
    
    Throws:
    
    IOException - If an I/O error occurs
    See Also:
    AsynchronousChannelGroup.withCachedThreadPool(java.util.concurrent.ExecutorService, int)
  - openAsynchronousServerSocketChannel
```
public abstract AsynchronousServerSocketChannel openAsynchronousServerSocketChannel(AsynchronousChannelGroup group)
                                                                             throws IOException
```
    Opens an asynchronous server-socket channel.
    
    Parameters:
    group - The group to which the channel is bound, or null to bind to the default group
    
    Returns:
    The new channel
    
    Throws:
    
    IllegalChannelGroupException - If the provider that created the group differs from this provider
    
    ShutdownChannelGroupException - The group is shutdown
    
    IOException - If an I/O error occurs
  - openAsynchronousSocketChannel
```
public abstract AsynchronousSocketChannel openAsynchronousSocketChannel(AsynchronousChannelGroup group)
                                                                 throws IOException
```
    Opens an asynchronous socket channel.
    
    Parameters:
    group - The group to which the channel is bound, or null to bind to the default group
    
    Returns:
    The new channel
    
    Throws:
    
    IllegalChannelGroupException - If the provider that created the group differs from this provider
    
    ShutdownChannelGroupException - The group is shutdown
    
    IOException - If an I/O error occurs

Traduction non disponible

Les API Java ne sont pas encore traduites en français sur l'infobrol. Seule la version anglaise est disponible pour l'instant.

Version en cache

31/12/2024 08:38:45 Cette version de la page est en cache (à la date du 31/12/2024 08:38:45) afin d'accélérer le traitement. Vous pouvez activer le mode utilisateur dans le menu en haut pour afficher la dernère version de la page.

Document créé le 11/06/2005, dernière modification le 04/03/2020
Source du document imprimé : https://www.gaudry.be/java-api-rf-java/nio/channels/spi/AsynchronousChannelProvider.html

L'infobrol est un site personnel dont le contenu n'engage que moi. Le texte est mis à disposition sous licence CreativeCommons(BY-NC-SA). Plus d'info sur les conditions d'utilisation et sur l'auteur.

Références

Manuel PHP : https://docs.oracle.com

Ces références et liens indiquent des documents consultés lors de la rédaction de cette page, ou qui peuvent apporter un complément d'information, mais les auteurs de ces sources ne peuvent être tenus responsables du contenu de cette page.
L'auteur de ce site est seul responsable de la manière dont sont présentés ici les différents concepts, et des libertés qui sont prises avec les ouvrages de référence. N'oubliez pas que vous devez croiser les informations de sources multiples afin de diminuer les risques d'erreurs.

Table des matières Haut

Class AsynchronousChannelProvider

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

AsynchronousChannelProvider

Method Detail

provider

openAsynchronousChannelGroup

openAsynchronousChannelGroup

openAsynchronousServerSocketChannel

openAsynchronousSocketChannel

Références