org.apache.flink.runtime.io.disk

类 SpillingBuffer

java.lang.Object

org.apache.flink.runtime.memory.AbstractPagedOutputView

org.apache.flink.runtime.io.disk.SpillingBuffer

所有已实现的接口:

DataOutput, org.apache.flink.core.memory.DataOutputView, org.apache.flink.core.memory.MemorySegmentWritable

public class SpillingBuffer
extends AbstractPagedOutputView

An output view that buffers written data in memory pages and spills them when they are full.

字段概要

从类继承的字段 org.apache.flink.runtime.memory.AbstractPagedOutputView

headerLength, segmentSize

构造器概要

构造器

构造器和说明
SpillingBuffer(IOManager ioManager, org.apache.flink.core.memory.MemorySegmentSource memSource, int segmentSize)

方法概要

限定符和类型	方法和说明
List<org.apache.flink.core.memory.MemorySegment>	close()
org.apache.flink.core.memory.DataInputView	flip()
protected org.apache.flink.core.memory.MemorySegment	nextSegment(org.apache.flink.core.memory.MemorySegment current, int positionInCurrent) This method must return a segment.

从类继承的方法 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

从类继承的方法 java.lang.Object

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

构造器详细资料

SpillingBuffer

public SpillingBuffer(IOManager ioManager,
                      org.apache.flink.core.memory.MemorySegmentSource memSource,
                      int segmentSize)

方法详细资料

nextSegment

protected org.apache.flink.core.memory.MemorySegment nextSegment(org.apache.flink.core.memory.MemorySegment current,
                                                                 int positionInCurrent)
                                                          throws IOException

从类复制的说明: AbstractPagedOutputView

This method must return a segment. If no more segments are available, it must throw an EOFException.

指定者:

nextSegment 在类中 AbstractPagedOutputView

参数:

current - The current memory segment

positionInCurrent - The position in the segment, one after the last valid byte.

返回:

The next memory segment.

抛出:

IOException

flip

public org.apache.flink.core.memory.DataInputView flip()
                                                throws IOException

抛出:

IOException

close

public List<org.apache.flink.core.memory.MemorySegment> close()
                                                       throws IOException

返回:

A list with all memory segments that have been taken from the memory segment source.

抛出:

IOException