protected AsynchronousChannelProvider()

Initializes a new instance of this class.

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.

public abstract AsynchronousChannelGroup openAsynchronousChannelGroup(int nThreads, ThreadFactory threadFactory) throws IOException

Constructs a new asynchronous channel group with a fixed thread pool.

public abstract AsynchronousChannelGroup openAsynchronousChannelGroup(ExecutorService executor, int initialSize) throws IOException

Constructs a new asynchronous channel group with the given thread pool.

public abstract AsynchronousServerSocketChannel openAsynchronousServerSocketChannel(AsynchronousChannelGroup group) throws IOException

Opens an asynchronous server-socket channel.

public abstract AsynchronousSocketChannel openAsynchronousSocketChannel(AsynchronousChannelGroup group) throws IOException

Opens an asynchronous socket channel.