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

Class AsynchronousBufferFileReader

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.ReadRequest>

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

All Implemented Interfaces:

BufferFileReader, FileIOChannel

public class AsynchronousBufferFileReader
extends AsynchronousFileIOChannel<Buffer,org.apache.flink.runtime.io.disk.iomanager.ReadRequest>
implements BufferFileReader

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flink.runtime.io.disk.iomanager.FileIOChannel

FileIOChannel.Enumerator, FileIOChannel.ID

Field Summary

Fields inherited from class org.apache.flink.runtime.io.disk.iomanager.AsynchronousFileIOChannel

closed, closeLock, exception, requestQueue, requestsNotReturned, resultHandler

Fields inherited from class org.apache.flink.runtime.io.disk.iomanager.AbstractFileIOChannel

fileChannel, id, LOG

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AsynchronousBufferFileReader(FileIOChannel.ID channelID, RequestQueue<org.apache.flink.runtime.io.disk.iomanager.ReadRequest> requestQueue, RequestDoneCallback<Buffer> callback)

Method Summary

Modifier and Type	Method and Description
boolean	hasReachedEndOfFile()
void	readInto(Buffer buffer)
void	seekToPosition(long position)

Methods inherited from class org.apache.flink.runtime.io.disk.iomanager.AsynchronousFileIOChannel

addRequest, checkErroneous, close, closeAndDelete, handleProcessedBuffer, isClosed, registerAllRequestsProcessedListener

Methods inherited from class org.apache.flink.runtime.io.disk.iomanager.AbstractFileIOChannel

deleteChannel, getChannelID, getNioFileChannel, getSize

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.runtime.io.disk.iomanager.FileIOChannel

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

Constructor Detail

AsynchronousBufferFileReader

protected AsynchronousBufferFileReader(FileIOChannel.ID channelID,
                                       RequestQueue<org.apache.flink.runtime.io.disk.iomanager.ReadRequest> requestQueue,
                                       RequestDoneCallback<Buffer> callback)
                                throws IOException

Throws:

IOException

Method Detail

readInto

public void readInto(Buffer buffer)
              throws IOException

Specified by:

readInto in interface BufferFileReader

Throws:

IOException

seekToPosition

public void seekToPosition(long position)
                    throws IOException

Specified by:

seekToPosition in interface BufferFileReader

Throws:

IOException

hasReachedEndOfFile

public boolean hasReachedEndOfFile()

Specified by:

hasReachedEndOfFile in interface BufferFileReader