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

类 UnboundedOverWindowFrame

java.lang.Object

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

所有已实现的接口:

Serializable, OverWindowFrame

public class UnboundedOverWindowFrame
extends Object
implements OverWindowFrame

The unbounded window frame calculates frames with the following SQL forms: ... (No Frame Definition) ... BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
UnboundedOverWindowFrame(GeneratedAggsHandleFunction aggsHandleFunction, org.apache.flink.table.types.logical.RowType valueType)

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.
org.apache.flink.table.data.RowData	process(int index, org.apache.flink.table.data.RowData current) return the ACC of the window frame.

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

构造器详细资料

UnboundedOverWindowFrame

public UnboundedOverWindowFrame(GeneratedAggsHandleFunction aggsHandleFunction,
                                org.apache.flink.table.types.logical.RowType valueType)

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

process

public org.apache.flink.table.data.RowData process(int index,
                                                   org.apache.flink.table.data.RowData current)
                                            throws Exception

从接口复制的说明: OverWindowFrame

return the ACC of the window frame.

指定者:

process 在接口中 OverWindowFrame

抛出:

Exception