Class Sockets

java.lang.Object

jdk.net.Sockets

@Deprecated(since="16") public class Sockets extends Object

Deprecated.

Java SE 9 added standard methods to set/get socket options, and retrieve the per-Socket supported options effectively rendering this API redundant. Please refer to the corresponding socket's class for the equivalent method to set/get a socket option or retrieve available socket options.

Defines static methods to set and get socket options defined by the SocketOption interface. All of the standard options defined by Socket, ServerSocket, and DatagramSocket can be set this way, as well as additional or platform specific options supported by each socket type.

The supportedOptions(Class) method can be called to determine the complete set of options available (per socket type) on the current system.

Since:

1.8

See Also:

Method Summary

Modifier and Type	Method	Description
`static <T> T`	`getOption(DatagramSocket s, SocketOption<T> name)`	Deprecated. use `DatagramSocket.getOption(SocketOption)` instead.
`static <T> T`	`getOption(ServerSocket s, SocketOption<T> name)`	Deprecated. use `ServerSocket.getOption(SocketOption)` instead.
`static <T> T`	`getOption(Socket s, SocketOption<T> name)`	Deprecated. use `Socket.getOption(SocketOption)` instead.
`static <T> void`	`setOption(DatagramSocket s, SocketOption<T> name, T value)`	Deprecated. use `DatagramSocket.setOption(SocketOption, Object)` instead.
`static <T> void`	`setOption(ServerSocket s, SocketOption<T> name, T value)`	Deprecated. use `ServerSocket.setOption(SocketOption, Object)` instead.
`static <T> void`	`setOption(Socket s, SocketOption<T> name, T value)`	Deprecated. use `Socket.setOption(SocketOption, Object)` instead.
`static Set<SocketOption<?>>`	`supportedOptions(Class<?> socketType)`	Deprecated, for removal: This API element is subject to removal in a future version. use `Socket.supportedOptions()`, `ServerSocket.supportedOptions()`, or `DatagramSocket.supportedOptions()` instead.

Methods declared in class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Modifier and Type	Method	Description
`protected Object`	`clone()`	Creates and returns a copy of this object.
`boolean`	`equals(Object obj)`	Indicates whether some other object is "equal to" this one.
`protected void`	`finalize()`	Deprecated, for removal: This API element is subject to removal in a future version. Finalization is deprecated and subject to removal in a future release.
`final Class<?>`	`getClass()`	Returns the runtime class of this `Object`.
`int`	`hashCode()`	Returns a hash code value for this object.
`final void`	`notify()`	Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()`	Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()`	Returns a string representation of the object.
`final void`	`wait()`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
`final void`	`wait(long timeoutMillis)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis, int nanos)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

Method Details

setOption

@Deprecated(since="16") public static <T> void setOption(Socket s, SocketOption<T> name, T value) throws IOException

Deprecated.

use Socket.setOption(SocketOption, Object) instead.

Sets the value of a socket option on a Socket

Type Parameters:

T - The type of the socket option

Parameters:

s - the socket

name - The socket option

value - The value of the socket option. May be null for some options.

Throws:

UnsupportedOperationException - if the socket does not support the option.

IllegalArgumentException - if the value is not valid for the option.

IOException - if an I/O error occurs, or socket is closed.

NullPointerException - if name is null

See Also:

getOption

@Deprecated(since="16") public static <T> T getOption(Socket s, SocketOption<T> name) throws IOException

Deprecated.

use Socket.getOption(SocketOption) instead.

Returns the value of a socket option from a Socket

Type Parameters:

T - The type of the socket option

Parameters:

s - the socket

name - The socket option

Returns:

The value of the socket option.

Throws:

UnsupportedOperationException - if the socket does not support the option.

IOException - if an I/O error occurs

NullPointerException - if name is null

See Also:

setOption

@Deprecated(since="16") public static <T> void setOption(ServerSocket s, SocketOption<T> name, T value) throws IOException

Deprecated.

use ServerSocket.setOption(SocketOption, Object) instead.

Sets the value of a socket option on a ServerSocket

Type Parameters:

T - The type of the socket option

Parameters:

s - the socket

name - The socket option

value - The value of the socket option

Throws:

UnsupportedOperationException - if the socket does not support the option.

IllegalArgumentException - if the value is not valid for the option.

IOException - if an I/O error occurs

NullPointerException - if name is null

See Also:

getOption

@Deprecated(since="16") public static <T> T getOption(ServerSocket s, SocketOption<T> name) throws IOException

Deprecated.

use ServerSocket.getOption(SocketOption) instead.

Returns the value of a socket option from a ServerSocket

Type Parameters:

T - The type of the socket option

Parameters:

s - the socket

name - The socket option

Returns:

The value of the socket option.

Throws:

UnsupportedOperationException - if the socket does not support the option.

IOException - if an I/O error occurs

NullPointerException - if name is null

See Also:

setOption

@Deprecated(since="16") public static <T> void setOption(DatagramSocket s, SocketOption<T> name, T value) throws IOException

Deprecated.

use DatagramSocket.setOption(SocketOption, Object) instead.

Sets the value of a socket option on a DatagramSocket or MulticastSocket

Type Parameters:

T - The type of the socket option

Parameters:

s - the socket

name - The socket option

value - The value of the socket option

Throws:

UnsupportedOperationException - if the socket does not support the option.

IllegalArgumentException - if the value is not valid for the option.

IOException - if an I/O error occurs

NullPointerException - if name is null

See Also:

getOption

@Deprecated(since="16") public static <T> T getOption(DatagramSocket s, SocketOption<T> name) throws IOException

Deprecated.

use DatagramSocket.getOption(SocketOption) instead.

Returns the value of a socket option from a DatagramSocket or MulticastSocket

Type Parameters:

T - The type of the socket option

Parameters:

s - the socket

name - The socket option

Returns:

The value of the socket option.

Throws:

UnsupportedOperationException - if the socket does not support the option.

IOException - if an I/O error occurs

NullPointerException - if name is null

See Also:

supportedOptions

@Deprecated(since="16", forRemoval=true) public static Set<SocketOption<?>> supportedOptions(Class<?> socketType)

Deprecated, for removal: This API element is subject to removal in a future version.

use Socket.supportedOptions(), ServerSocket.supportedOptions(), or DatagramSocket.supportedOptions() instead.

Returns a set of SocketOptions supported by the given socket type. This set may include standard options and also non standard extended options.

Parameters:: socketType - the type of java.net socket
Returns:: A set of socket options
Throws:: IllegalArgumentException - if socketType is not a valid socket type from the java.net package.

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