org.apache.flink.table.runtime.operators.over.frame

类 UnboundedPrecedingOverFrame

java.lang.Object

org.apache.flink.table.runtime.operators.over.frame.UnboundedPrecedingOverFrame

所有已实现的接口:

Serializable, OverWindowFrame

直接已知子类:

RangeUnboundedPrecedingOverFrame, RowUnboundedPrecedingOverFrame

public abstract class UnboundedPrecedingOverFrame
extends Object
implements OverWindowFrame

The UnboundedPreceding window frame. See RowUnboundedPrecedingOverFrame and RangeUnboundedPrecedingOverFrame.

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
UnboundedPrecedingOverFrame(GeneratedAggsHandleFunction aggsHandleFunction)

方法概要

限定符和类型	方法和说明
void	open(ExecutionContext ctx) Open to init with ExecutionContext.
void	prepare(ResettableExternalBuffer rows) Prepare for next partition.

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.table.runtime.operators.over.frame.OverWindowFrame

getNextOrNull, process

构造器详细资料

UnboundedPrecedingOverFrame

public UnboundedPrecedingOverFrame(GeneratedAggsHandleFunction aggsHandleFunction)

方法详细资料

open

public void open(ExecutionContext ctx)
          throws Exception

从接口复制的说明: OverWindowFrame

Open to init with ExecutionContext.

指定者:

open 在接口中 OverWindowFrame

抛出:

Exception

prepare

public void prepare(ResettableExternalBuffer rows)
             throws Exception

从接口复制的说明: OverWindowFrame

Prepare for next partition.

指定者:

prepare 在接口中 OverWindowFrame

抛出:

Exception