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JavaTM 2 Platform Standard Ed. 5.0 |
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java.lang.Object java.nio.channels.SelectionKey java.nio.channels.spi.AbstractSelectionKey
public abstract class AbstractSelectionKey
Base implementation class for selection keys.
This class tracks the validity of the key and implements cancellation.
Field Summary |
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Fields inherited from class java.nio.channels.SelectionKey |
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OP_ACCEPT, OP_CONNECT, OP_READ, OP_WRITE |
Constructor Summary | |
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protected |
AbstractSelectionKey()
Initializes a new instance of this class. |
Method Summary | |
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void |
cancel()
Cancels this key. |
boolean |
isValid()
Tells whether or not this key is valid. |
Methods inherited from class java.nio.channels.SelectionKey |
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attach, attachment, channel, interestOps, interestOps, isAcceptable, isConnectable, isReadable, isWritable, readyOps, selector |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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protected AbstractSelectionKey()
Method Detail |
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public final boolean isValid()
SelectionKey
A key is valid upon creation and remains so until it is cancelled, its channel is closed, or its selector is closed.
isValid
in class SelectionKey
public final void cancel()
If this key has not yet been cancelled then it is added to its selector's cancelled-key set while synchronized on that set.
cancel
in class SelectionKey
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JavaTM 2 Platform Standard Ed. 5.0 |
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Copyright 2004 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.