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Préférences
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JavaTM 2 Platform Std. Ed. v1.4.2
java.nio.channels.spi
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Constructor Summary | |
protected |
SelectorProvider()
Initializes a new instance of this class. |
Method Summary | |
abstract DatagramChannel |
openDatagramChannel()
Opens a datagram channel. |
abstract Pipe |
openPipe()
Opens a pipe. |
abstract AbstractSelector |
openSelector()
Opens a selector. |
abstract ServerSocketChannel |
openServerSocketChannel()
Opens a server-socket channel. |
abstract SocketChannel |
openSocketChannel()
Opens a socket channel. |
static SelectorProvider |
provider()
Returns the system-wide default selector 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 |
protected SelectorProvider()
SecurityException
- If a security manager has been installed and it denies
RuntimePermission
("selectorProvider")Method Detail |
public static SelectorProvider provider()
The first invocation of this method locates the default provider object as follows:
If the system property java.nio.channels.spi.SelectorProvider 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.
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.SelectorProvider 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.
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 DatagramChannel openDatagramChannel() throws IOException
IOException
public abstract Pipe openPipe() throws IOException
IOException
public abstract AbstractSelector openSelector() throws IOException
IOException
public abstract ServerSocketChannel openServerSocketChannel() throws IOException
IOException
public abstract SocketChannel openSocketChannel() throws IOException
IOException