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Class Pipe

java.lang.Object
java.nio.channels.Pipe
public abstract class Pipe extends Object
A pair of channels that implements a unidirectional pipe.

A pipe consists of a pair of channels: A writable sink channel and a readable source channel. Once some bytes are written to the sink channel they can be read from the source channel in exactly the order in which they were written.

Whether or not a thread writing bytes to a pipe will block until another thread reads those bytes, or some previously-written bytes, from the pipe is system-dependent and therefore unspecified. Many pipe implementations will buffer up to a certain number of bytes between the sink and source channels, but such buffering should not be assumed.

Since:
1.4

Nested Class Summary

Modifier and Type Class Description
static class  Pipe.SinkChannel
A channel representing the writable end of a Pipe.
static class  Pipe.SourceChannel
A channel representing the readable end of a Pipe.

Constructor Summary

Modifier Constructor Description
protected
Initializes a new instance of this class.

Method Summary

Modifier and Type Method Description
static Pipe open()
Opens a pipe.
abstract Pipe.SinkChannel sink()
Returns this pipe's sink channel.
abstract Pipe.SourceChannel source()
Returns this pipe's source channel.

Methods declared in class java.lang.Object

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

Constructor Details

Pipe

protected Pipe()
Initializes a new instance of this class.

Method Details

source

public abstract Pipe.SourceChannel source()
Returns this pipe's source channel.
Returns:
This pipe's source channel

sink

public abstract Pipe.SinkChannel sink()
Returns this pipe's sink channel.
Returns:
This pipe's sink channel

open

public static Pipe open() throws IOException
Opens a pipe.

The new pipe is created by invoking the openPipe method of the system-wide default SelectorProvider object.

Returns:
A new pipe
Throws:
IOException - If an I/O error occurs

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Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
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https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/nio/channels/Pipe.html