AlreadyConnectedException.java: Removed unneeded import.

2002-11-13  Michael Koch <konqueror@gmx.de>

	* java/nio/channels/AlreadyConnectedException.java:
	Removed unneeded import.
	(AlreadyConnectedException): Documentation added.
	* java/nio/channels/Pipe.java
	(SinkChannel.SinkChannel): Documentation added.
	(SinkChannel.validOps): New method.
	(SourceChannel.SourceChannel): Documentation added.
	(SourceChannel.validOps): New method.
	(Pipe): Documentation added.
	(open): Documentation added.
	(SinkChannel.channel): Documentation added.
	(SourceChannel.channel): Documentation added.
	* java/nio/channel/SelectableChannel.java
	(SelectableChannel): Documentation added.
	(blockingLock): Documentation added.
	(configureBlocking):Documentation added.
	(isBlocking):Documentation added.
	(isRegistered):Documentation added.
	(keyFor):Documentation added.
	(provider):Documentation added.
	(register): Documentation added.
	(validOps): Documentation added.
	* jaba/nio/channels/SelectionKey.java
	(SelectionKey): Documentation added.
	(attach): Documentation added.
	(attachment): Documentation added.
	(isAcceptable): Documentation added.
	(isConnetable): Documentation added.
	(isReadable): Documentation added.
	(isWritable): Documentation added.
	(cancel): Documentation added.
	(channel): Documentation added.
	(interestOps): Documentation added.
	(isValid): Documentation added.
	(readyOps): Documentation added.
	(selector): Documentation added.
	* jaba/nio/channels/Selector.java
	(Selector): Documentation added.
	(open): Documentation added.
	(close): Documentation added.
	(isOpen): Documentation added.
	(keys): Documentation added.
	(provider): Documentation added.
	(select): Documentation added.
	(selectedKeys): Documentation added.
	(selectNow): Documentation added.
	(wakeup): Documentation added.
	* java/nio/channels/spi/AbstractInterruptibleChannel.java
	(AbstractInterruptibleChannel): Documentation added.
	(opened): Default to true;
	(begin): Documentation added.
	(close): Set opened to false, documentation added.
	(isOpen): Documentation added.
	* java/nio/channels/spi/AbstractSelectionKey.java
	(AbstractSelectionKey): Documentation added.
	(cancel): Documentation added.
	(isValid): Documentation added.
	* java/nio/channels/spi/AbstractSelector.java
	(AbstractSelector): Documentation added.
	(begin): Documentation added.
	(close): Documentation added.
	(isOpen): Documentation added.
	(deregister): Documentation added.
	(end): Documentation added.
	(provider): Documentation added.
	(implCloseSelector): Documentation added.
	(register): Documentation added.
	* java/nio/channels/spi/SelectorProvider.java
	(SelectorProvider): Documentation added.
	(openDatagramChannel): Documentation added.
	(openPipe): Documentation added.
	(openSelector): Documentation added.
	(openServerSocketChannel): Documentation added.
	(openSocketChannel): Documentation added.
	(provider): Documentation added.

From-SVN: r59077

libjava/java/nio/channels/spi/AbstractSelector.java

@@ -37,6 +37,7 @@ exception statement from your version. */
 
 package java.nio.channels.spi;
 
+import java.io.IOException;
 import java.nio.channels.SelectionKey;
 import java.nio.channels.Selector;
 import java.util.List;
@@ -44,57 +45,70 @@ import java.util.Set;
 
 public abstract class AbstractSelector extends Selector
 {
-  boolean closed = true;
+  boolean closed = false;
   SelectorProvider provider;
 
-  protected AbstractSelector(SelectorProvider provider)
+  /**
+   * Initializes the slector.
+   */
+  protected AbstractSelector (SelectorProvider provider)
   {
     this.provider = provider;
   }
  
-  protected final void begin()
+  /**
+   * Marks the beginning of an I/O operation that might block indefinitely.
+   */
+  protected final void begin ()
   {
   }
 
   /**
+   * Closes the channel.
+   * 
    * @exception IOException If an error occurs
    */
-  public final void close()
+  public final void close () throws IOException
   {
     if (closed)
       return;
+    
     closed = true;
-    implCloseSelector();
+    implCloseSelector ();
   }
 
-  protected final void deregister(AbstractSelectionKey key)
+  /**
+   * Tells whether this channel is open or not.
+   */
+  public final boolean isOpen ()
   {
-    cancelledKeys().remove(key);
+    return ! closed;
+  }
+
+  protected final void deregister (AbstractSelectionKey key)
+  {
+    cancelledKeys ().remove (key);
   }
     
   protected final void end()
   {
   }
     
-  public final boolean isOpen()
-  {
-    return ! closed;
-  }
-    
-  public final SelectorProvider provider()
+  public final SelectorProvider provider ()
   {
     return provider;
   }
-    
+
   protected final Set cancelledKeys()
   {
     return null;
   }
-  
+
   /**
-   * @exception IOException If an error occurs
+   * Closes the channel.
    */
-  protected abstract void implCloseSelector();	
-  
-  protected abstract SelectionKey register(AbstractSelectableChannel ch, int ops, Object att);   
+  protected abstract void implCloseSelector () throws IOException;
+
+  protected abstract SelectionKey register (AbstractSelectableChannel ch,
+                                            int ops, Object att);   
 }