JsonOnNull (Flink : 2.0-SNAPSHOT API)

java.lang.Object
- java.lang.Enum<JsonOnNull>
- - org.apache.flink.table.api.JsonOnNull

All Implemented Interfaces:

Serializable, Comparable<JsonOnNull>, TableSymbol
```
@PublicEvolving
public enum JsonOnNull
extends Enum<JsonOnNull>
implements TableSymbol
```
Behavior for entries with a null value for BuiltInFunctionDefinitions.JSON_OBJECT and BuiltInFunctionDefinitions.JSON_ARRAY.

Enum Constant Summary

Enum Constants
Enum Constant Description

ABSENT
Omit this key from the resulting JSON.

NULL
Use a JSON null value.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static JsonOnNull`	`valueOf(String name)`	Returns the enum constant of this type with the specified name.
`static JsonOnNull[]`	`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
  - NULL
```
public static final JsonOnNull NULL
```
    Use a JSON null value.
  - ABSENT
```
public static final JsonOnNull ABSENT
```
    Omit this key from the resulting JSON.
- Method Detail
  - values
```
public static JsonOnNull[] 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 (JsonOnNull c : JsonOnNull.values()) System.out.println(c);
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static JsonOnNull 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