# Class Pipe.SinkChannel

java.lang.Object
java.nio.channels.spi.AbstractInterruptibleChannel
java.nio.channels.SelectableChannel
java.nio.channels.spi.AbstractSelectableChannel
java.nio.channels.Pipe.SinkChannel

All Implemented Interfaces:
  `Closeable, AutoCloseable, Channel, GatheringByteChannel, InterruptibleChannel, WritableByteChannel`

Enclosing class:
  `Pipe`

public abstract static class Pipe.SinkChannel extends AbstractSelectableChannel implements WritableByteChannel, GatheringByteChannel
A channel representing the writable end of a `Pipe`.

Since:
  1.4

## Constructor Summary

Constructors
Modifier
Constructor
Description
`protected`
`SinkChannel(SelectorProvider provider)`
Initializes a new instance of this class.

## Method Summary

Modifier and Type
Method
Description
`final int`
`validOps()`
Returns an operation set identifying this channel's supported operations.

### Methods declared in class AbstractSelectableChannel

`blockingLock, configureBlocking, implCloseChannel, implCloseSelectableChannel, implConfigureBlocking, isBlocking, isRegistered, keyFor, provider, register`

### Methods declared in class SelectableChannel

`register`

### Methods declared in class AbstractInterruptibleChannel

`begin, close, end, isOpen`

### Methods declared in class Object

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

### Methods declared in interface Channel

`isOpen`

### Methods declared in interface GatheringByteChannel

`write, write`

### Methods declared in interface WritableByteChannel

`write`

## Constructor Details

### SinkChannel

protected SinkChannel(SelectorProvider provider)
Initializes a new instance of this class.

Parameters:
  `provider` - The selector provider

## Method Details

### validOps

public final int validOps()
Returns an operation set identifying this channel's supported operations.

Pipe-sink channels only support writing, so this method returns `SelectionKey.OP_WRITE`.

Specified by:
  `validOps` in class `SelectableChannel`
Returns:
  The valid-operation set