org.apache.flink.runtime.io.disk.iomanager

类 AsynchronousBufferFileWriter

java.lang.Object

org.apache.flink.runtime.io.disk.iomanager.AbstractFileIOChannel

org.apache.flink.runtime.io.disk.iomanager.AsynchronousFileIOChannel<Buffer,org.apache.flink.runtime.io.disk.iomanager.WriteRequest>

org.apache.flink.runtime.io.disk.iomanager.AsynchronousBufferFileWriter

所有已实现的接口:

BlockChannelWriterWithCallback<Buffer>, BufferFileWriter, FileIOChannel

public class AsynchronousBufferFileWriter
extends AsynchronousFileIOChannel<Buffer,org.apache.flink.runtime.io.disk.iomanager.WriteRequest>
implements BufferFileWriter

嵌套类概要

从接口继承的嵌套类/接口 org.apache.flink.runtime.io.disk.iomanager.FileIOChannel

FileIOChannel.Enumerator, FileIOChannel.ID

字段概要

从类继承的字段 org.apache.flink.runtime.io.disk.iomanager.AsynchronousFileIOChannel

closed, closeLock, exception, requestQueue, requestsNotReturned, resultHandler

从类继承的字段 org.apache.flink.runtime.io.disk.iomanager.AbstractFileIOChannel

fileChannel, id, LOG

构造器概要

构造器

限定符	构造器和说明
protected	AsynchronousBufferFileWriter(FileIOChannel.ID channelID, RequestQueue<org.apache.flink.runtime.io.disk.iomanager.WriteRequest> requestQueue)

方法概要

限定符和类型	方法和说明
int	getNumberOfOutstandingRequests() Returns the number of outstanding requests.
boolean	registerAllRequestsProcessedListener(NotificationListener listener) Registers a listener to be notified when all outstanding requests have been processed.
void	writeBlock(Buffer buffer) Writes the given block asynchronously.

从类继承的方法 org.apache.flink.runtime.io.disk.iomanager.AsynchronousFileIOChannel

addRequest, checkErroneous, close, closeAndDelete, handleProcessedBuffer, isClosed

从类继承的方法 org.apache.flink.runtime.io.disk.iomanager.AbstractFileIOChannel

deleteChannel, getChannelID, getNioFileChannel, getSize

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.runtime.io.disk.iomanager.FileIOChannel

close, closeAndDelete, deleteChannel, getChannelID, getNioFileChannel, getSize, isClosed

构造器详细资料

AsynchronousBufferFileWriter

protected AsynchronousBufferFileWriter(FileIOChannel.ID channelID,
                                       RequestQueue<org.apache.flink.runtime.io.disk.iomanager.WriteRequest> requestQueue)
                                throws IOException

抛出:

IOException

方法详细资料

writeBlock

public void writeBlock(Buffer buffer)
                throws IOException

Writes the given block asynchronously.

指定者:

writeBlock 在接口中 BlockChannelWriterWithCallback<Buffer>

参数:

buffer - the buffer to be written (will be recycled when done)

抛出:

IOException - thrown if adding the write operation fails

getNumberOfOutstandingRequests

public int getNumberOfOutstandingRequests()

从接口复制的说明: BufferFileWriter

Returns the number of outstanding requests.

指定者:

getNumberOfOutstandingRequests 在接口中 BufferFileWriter

registerAllRequestsProcessedListener

public boolean registerAllRequestsProcessedListener(NotificationListener listener)
                                             throws IOException

从类复制的说明: AsynchronousFileIOChannel

Registers a listener to be notified when all outstanding requests have been processed.

New requests can arrive right after the listener got notified. Therefore, it is not safe to assume that the number of outstanding requests is still zero after a notification unless there was a close right before the listener got called.

Returns true, if the registration was successful. A registration can fail, if there are no outstanding requests when trying to register a listener.

指定者:

registerAllRequestsProcessedListener 在接口中 BufferFileWriter

覆盖:

registerAllRequestsProcessedListener 在类中 AsynchronousFileIOChannel<Buffer,org.apache.flink.runtime.io.disk.iomanager.WriteRequest>

抛出:

IOException