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| JavaTM 2 Platform Standard Ed. 5.0
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## Uses of Class
java.nio.channels.SelectionKey

Packages that use SelectionKey
java.nio.channels | Defines channels, which represent connections to entities that are capable of performing I/O operations, such as files and sockets; defines selectors, for multiplexed, non-blocking I/O operations.
java.nio.channels.spi | Service-provider classes for the ``java.nio.channels`` package.

Uses of SelectionKey in java.nio.channels

Methods in java.nio.channels that return SelectionKey
`abstract SelectionKey` | `SelectionKey.interestOps(int ops)` Sets this key's interest set to the given value.
`abstract SelectionKey` | `SelectableChannel.keyFor(Selector sel)` Retrieves the key representing the channel's registration with the given selector.
`SelectionKey` | `SelectableChannel.register(Selector sel, int ops)` Registers this channel with the given selector, returning a selection key.
`abstract SelectionKey` | `SelectableChannel.register(Selector sel, int ops, Object att)` Registers this channel with the given selector, returning a selection key.

Methods in java.nio.channels that return types with arguments of type SelectionKey
`abstract Set<SelectionKey>` | `Selector.keys()` Returns this selector's key set.
`abstract Set<SelectionKey>` | `Selector.selectedKeys()` Returns this selector's selected-key set.

Uses of SelectionKey in java.nio.channels.spi

Subclasses of SelectionKey in java.nio.channels.spi
`class` | `AbstractSelectionKey` Base implementation class for selection keys.

Methods in java.nio.channels.spi that return SelectionKey
`SelectionKey` | `AbstractSelectableChannel.keyFor(Selector sel)`
`protected abstract SelectionKey` | `AbstractSelector.register(AbstractSelectableChannel ch, int ops, Object att)` Registers the given channel with this selector.
`SelectionKey` | `AbstractSelectableChannel.register(Selector sel, int ops, Object att)` Registers this channel with the given selector, returning a selection key.

Methods in java.nio.channels.spi that return types with arguments of type SelectionKey
`protected Set<SelectionKey>` | `AbstractSelector.cancelledKeys()` Retrieves this selector's cancelled-key set.

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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