Package org.apache.flink.table.runtime.io

Class CompressedHeaderlessChannelWriterOutputView

java.lang.Object
org.apache.flink.runtime.memory.AbstractPagedOutputView
org.apache.flink.runtime.io.disk.iomanager.AbstractChannelWriterOutputView
org.apache.flink.table.runtime.io.CompressedHeaderlessChannelWriterOutputView
All Implemented Interfaces:
DataOutput, org.apache.flink.core.memory.DataOutputView, org.apache.flink.core.memory.MemorySegmentWritable, org.apache.flink.runtime.io.network.buffer.BufferRecycler
public final class CompressedHeaderlessChannelWriterOutputView extends org.apache.flink.runtime.io.disk.iomanager.AbstractChannelWriterOutputView implements org.apache.flink.runtime.io.network.buffer.BufferRecycler
A DataOutputView that is backed by a FileIOChannel, making it effectively a data output stream. The view will compress its data before writing it in blocks to the underlying channel.

  • Nested Class Summary

    Nested classes/interfaces inherited from interface org.apache.flink.runtime.io.network.buffer.BufferRecycler

    org.apache.flink.runtime.io.network.buffer.BufferRecycler.DummyBufferRecycler

  • Field Summary

    Fields inherited from class org.apache.flink.runtime.memory.AbstractPagedOutputView

    headerLength, segmentSize

  • Constructor Summary

    Constructors
    Constructor
    Description
    CompressedHeaderlessChannelWriterOutputView(org.apache.flink.runtime.io.disk.iomanager.BufferFileWriter writer, org.apache.flink.runtime.io.compression.BlockCompressionFactory compressionCodecFactory, int compressionBlockSize)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    close()
     
    int
    getBlockCount()
     
    org.apache.flink.runtime.io.disk.iomanager.FileIOChannel
    getChannel()
     
    long
    getNumBytes()
     
    long
    getNumCompressedBytes()
     
    protected org.apache.flink.core.memory.MemorySegment
    nextSegment(org.apache.flink.core.memory.MemorySegment current, int positionInCurrent)
     
    void
    recycle(org.apache.flink.core.memory.MemorySegment memorySegment)
     

    Methods inherited from class org.apache.flink.runtime.memory.AbstractPagedOutputView

    advance, clear, getCurrentPositionInSegment, getCurrentSegment, getHeaderLength, getSegmentSize, seekOutput, skipBytesToWrite, write, write, write, write, write, writeBoolean, writeByte, writeBytes, writeChar, writeChars, writeDouble, writeFloat, writeInt, writeLong, writeShort, writeUTF

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • CompressedHeaderlessChannelWriterOutputView

      public CompressedHeaderlessChannelWriterOutputView(org.apache.flink.runtime.io.disk.iomanager.BufferFileWriter writer, org.apache.flink.runtime.io.compression.BlockCompressionFactory compressionCodecFactory, int compressionBlockSize)

  • Method Details

    • getChannel

      public org.apache.flink.runtime.io.disk.iomanager.FileIOChannel getChannel()
      Specified by:
      getChannel in class org.apache.flink.runtime.io.disk.iomanager.AbstractChannelWriterOutputView

    • close

      public int close() throws IOException
      Specified by:
      close in class org.apache.flink.runtime.io.disk.iomanager.AbstractChannelWriterOutputView
      Throws:
      IOException

    • nextSegment

      protected org.apache.flink.core.memory.MemorySegment nextSegment(org.apache.flink.core.memory.MemorySegment current, int positionInCurrent) throws IOException
      Specified by:
      nextSegment in class org.apache.flink.runtime.memory.AbstractPagedOutputView
      Throws:
      IOException

    • getNumBytes

      public long getNumBytes()
      Specified by:
      getNumBytes in class org.apache.flink.runtime.io.disk.iomanager.AbstractChannelWriterOutputView

    • getNumCompressedBytes

      public long getNumCompressedBytes()
      Specified by:
      getNumCompressedBytes in class org.apache.flink.runtime.io.disk.iomanager.AbstractChannelWriterOutputView

    • getBlockCount

      public int getBlockCount()
      Specified by:
      getBlockCount in class org.apache.flink.runtime.io.disk.iomanager.AbstractChannelWriterOutputView

    • recycle

      public void recycle(org.apache.flink.core.memory.MemorySegment memorySegment)
      Specified by:
      recycle in interface org.apache.flink.runtime.io.network.buffer.BufferRecycler