java.nio.channels

Interfaces

AsynchronousByteChannel

An asynchronous channel that can read and write bytes.

AsynchronousChannel

A channel that supports asynchronous I/O operations.

ByteChannel

A channel that can read and write bytes.

Channel

A nexus for I/O operations.

CompletionHandler

A handler for consuming the result of an asynchronous I/O operation.

GatheringByteChannel

A channel that can write bytes from a sequence of buffers.

InterruptibleChannel

A channel that can be asynchronously closed and interrupted.

MulticastChannel

A network channel that supports Internet Protocol (IP) multicasting.

NetworkChannel

A channel to a network socket.

ReadableByteChannel

A channel that can read bytes.

ScatteringByteChannel

A channel that can read bytes into a sequence of buffers.

SeekableByteChannel

A byte channel that maintains a current position and allows the position to be changed.

WritableByteChannel

A channel that can write bytes.

Classes

AsynchronousChannelGroup

A grouping of asynchronous channels for the purpose of resource sharing.

AsynchronousFileChannel

An asynchronous channel for reading, writing, and manipulating a file.

AsynchronousServerSocketChannel

An asynchronous channel for stream-oriented listening sockets.

AsynchronousSocketChannel

An asynchronous channel for stream-oriented connecting sockets.

Channels

Utility methods for channels and streams.

DatagramChannel

A selectable channel for datagram-oriented sockets.

FileChannel

A channel for reading, writing, mapping, and manipulating a file.

FileLock

A token representing a lock on a region of a file.

MembershipKey

A token representing the membership of an Internet Protocol (IP) multicast group.

Pipe

A pair of channels that implements a unidirectional pipe.

SelectableChannel

A channel that can be multiplexed via a Selector.

SelectionKey

A token representing the registration of a SelectableChannel with a Selector.

Selector

A multiplexor of SelectableChannel objects.

ServerSocketChannel

A selectable channel for stream-oriented listening sockets.

SocketChannel

A selectable channel for stream-oriented connecting sockets.

Exceptions

AcceptPendingException

Unchecked exception thrown when an attempt is made to initiate an accept operation on a channel and a previous accept operation has not completed.

AlreadyBoundException

Unchecked exception thrown when an attempt is made to bind the socket a network oriented channel that is already bound.

AlreadyConnectedException

Unchecked exception thrown when an attempt is made to connect a SocketChannel that is already connected.

AsynchronousCloseException

Checked exception received by a thread when another thread closes the channel or the part of the channel upon which it is blocked in an I/O operation.

CancelledKeyException

Unchecked exception thrown when an attempt is made to use a selection key that is no longer valid.

ClosedByInterruptException

Checked exception received by a thread when another thread interrupts it while it is blocked in an I/O operation upon a channel.

ClosedChannelException

Checked exception thrown when an attempt is made to invoke or complete an I/O operation upon channel that is closed, or at least closed to that operation.

ClosedSelectorException

Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a closed selector.

ConnectionPendingException

Unchecked exception thrown when an attempt is made to connect a SocketChannel for which a non-blocking connection operation is already in progress.

FileLockInterruptionException

Checked exception received by a thread when another thread interrupts it while it is waiting to acquire a file lock.

IllegalBlockingModeException

Unchecked exception thrown when a blocking-mode-specific operation is invoked upon a channel in the incorrect blocking mode.

IllegalChannelGroupException

Unchecked exception thrown when an attempt is made to open a channel in a group that was not created by the same provider.

IllegalSelectorException

Unchecked exception thrown when an attempt is made to register a channel with a selector that was not created by the provider that created the channel.

InterruptedByTimeoutException

Checked exception received by a thread when a timeout elapses before an asynchronous operation completes.

NoConnectionPendingException

Unchecked exception thrown when the finishConnect method of a SocketChannel is invoked without first successfully invoking its connect method.

NonReadableChannelException

Unchecked exception thrown when an attempt is made to read from a channel that was not originally opened for reading.

NonWritableChannelException

Unchecked exception thrown when an attempt is made to write to a channel that was not originally opened for writing.

NotYetBoundException

Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a server socket channel that is not yet bound.

NotYetConnectedException

Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a socket channel that is not yet connected.

OverlappingFileLockException

Unchecked exception thrown when an attempt is made to acquire a lock on a region of a file that overlaps a region already locked by the same Java virtual machine, or when another thread is already waiting to lock an overlapping region of the same file.

ReadPendingException

Unchecked exception thrown when an attempt is made to read from an asynchronous socket channel and a previous read has not completed.

ShutdownChannelGroupException

Unchecked exception thrown when an attempt is made to construct a channel in a group that is shutdown or the completion handler for an I/O operation cannot be invoked because the channel group has terminated.

UnresolvedAddressException

Unchecked exception thrown when an attempt is made to invoke a network operation upon an unresolved socket address.

UnsupportedAddressTypeException

Unchecked exception thrown when an attempt is made to bind or connect to a socket address of a type that is not supported.

WritePendingException

Unchecked exception thrown when an attempt is made to write to an asynchronous socket channel and a previous write has not completed.