UnboundedPrecedingOverFrame (Flink : Table : Runtime 1.18.1-cp3 API)

java.lang.Object
- org.apache.flink.table.runtime.operators.over.frame.UnboundedPrecedingOverFrame

All Implemented Interfaces:

Serializable, OverWindowFrame

Direct Known Subclasses:

RangeUnboundedPrecedingOverFrame, RowUnboundedPrecedingOverFrame
```
public abstract class UnboundedPrecedingOverFrame
extends Object
implements OverWindowFrame
```
The UnboundedPreceding window frame. See RowUnboundedPrecedingOverFrame and RangeUnboundedPrecedingOverFrame.

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

UnboundedPrecedingOverFrame(GeneratedAggsHandleFunction aggsHandleFunction)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`open(ExecutionContext ctx)`	Open to init with `ExecutionContext`.
`void`	`prepare(ResettableExternalBuffer rows)`	Prepare for next partition.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.flink.table.runtime.operators.over.frame.OverWindowFrame
process

- Constructor Detail
  - UnboundedPrecedingOverFrame
```
public UnboundedPrecedingOverFrame(GeneratedAggsHandleFunction aggsHandleFunction)
```
- Method Detail
  - open
```
public void open(ExecutionContext ctx)
          throws Exception
```
    Description copied from interface: OverWindowFrame
    
    Open to init with ExecutionContext.
    
    Specified by:
    
    open in interface OverWindowFrame
    
    Throws:
    
    Exception
  - prepare
```
public void prepare(ResettableExternalBuffer rows)
             throws Exception
```
    Description copied from interface: OverWindowFrame
    
    Prepare for next partition.
    
    Specified by:
    
    prepare in interface OverWindowFrame
    
    Throws:
    
    Exception