org.apache.flink.table.runtime.operators.window.grouping

类 HeapWindowsGrouping

java.lang.Object

org.apache.flink.table.runtime.operators.window.grouping.WindowsGrouping

org.apache.flink.table.runtime.operators.window.grouping.HeapWindowsGrouping

所有已实现的接口:

Closeable, AutoCloseable

public class HeapWindowsGrouping
extends WindowsGrouping

A jvm heap implementation of WindowsGrouping, which uses a linked list to buffer all the inputs of a keyed group belonging to the same window. It is designed to have a capacity limit to avoid JVM OOM and reduce GC pauses.

构造器概要

构造器

构造器和说明
HeapWindowsGrouping(int maxSizeLimit, long windowSize, long slideSize, int timeIndex, boolean isDate)
HeapWindowsGrouping(int maxSizeLimit, long offset, long windowSize, long slideSize, int timeIndex, boolean isDate)

方法概要

限定符和类型	方法和说明
protected void	addIntoBuffer(org.apache.flink.table.data.binary.BinaryRowData input)
void	close()
protected RowIterator<org.apache.flink.table.data.binary.BinaryRowData>	newBufferIterator(int startIndex)
protected void	onBufferEvict(int limitIndex)
protected void	resetBuffer()

从类继承的方法 org.apache.flink.table.runtime.operators.window.grouping.WindowsGrouping

addInputToBuffer, advanceWatermarkToTriggerAllWindows, buildTriggerWindowElementsIterator, getTriggerWindow, hasTriggerWindow, reset

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

HeapWindowsGrouping

public HeapWindowsGrouping(int maxSizeLimit,
                           long windowSize,
                           long slideSize,
                           int timeIndex,
                           boolean isDate)

HeapWindowsGrouping

public HeapWindowsGrouping(int maxSizeLimit,
                           long offset,
                           long windowSize,
                           long slideSize,
                           int timeIndex,
                           boolean isDate)

方法详细资料

resetBuffer

protected void resetBuffer()

指定者:

resetBuffer 在类中 WindowsGrouping

onBufferEvict

protected void onBufferEvict(int limitIndex)

指定者:

onBufferEvict 在类中 WindowsGrouping

addIntoBuffer

protected void addIntoBuffer(org.apache.flink.table.data.binary.BinaryRowData input)
                      throws IOException

指定者:

addIntoBuffer 在类中 WindowsGrouping

抛出:

IOException

newBufferIterator

protected RowIterator<org.apache.flink.table.data.binary.BinaryRowData> newBufferIterator(int startIndex)

指定者:

newBufferIterator 在类中 WindowsGrouping

close

public void close()
           throws IOException

抛出:

IOException