WatermarkHandlingResult (Flink : Core API 2.1.2-cp1 API)

java.lang.Object
- java.lang.Enum<WatermarkHandlingResult>
- - org.apache.flink.api.common.watermark.WatermarkHandlingResult

All Implemented Interfaces:

Serializable, Comparable<WatermarkHandlingResult>
```
@Experimental
public enum WatermarkHandlingResult
extends Enum<WatermarkHandlingResult>
```
This class defines watermark handling result for user-defined process function.

Enum Constant Summary

Enum Constants
Enum Constant	Description
`PEEK`	Process function only peek the watermark, and it's framework's responsibility to handle this watermark.
`POLL`	This watermark should be sent to downstream by process function itself.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static WatermarkHandlingResult`	`valueOf(String name)`	Returns the enum constant of this type with the specified name.
`static WatermarkHandlingResult[]`	`values()`	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Enum Constant Detail
  - PEEK
```
public static final WatermarkHandlingResult PEEK
```
    Process function only peek the watermark, and it's framework's responsibility to handle this watermark.
  - POLL
```
public static final WatermarkHandlingResult POLL
```
    This watermark should be sent to downstream by process function itself. The framework does no additional processing.
- Method Detail
  - values
```
public static WatermarkHandlingResult[] values()
```
    Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
    for (WatermarkHandlingResult c : WatermarkHandlingResult.values()) System.out.println(c);
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static WatermarkHandlingResult valueOf(String name)
```
    Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
    
    Parameters:
    
    name - the name of the enum constant to be returned.
    
    Returns:
    
    the enum constant with the specified name
    
    Throws:
    
    IllegalArgumentException - if this enum type has no constant with the specified name
    
    NullPointerException - if the argument is null