NullsConstantProvider (jackson-databind 2.14.2)

java.lang.Object
- com.fasterxml.jackson.databind.deser.impl.NullsConstantProvider

All Implemented Interfaces:

NullValueProvider, Serializable
```
public class NullsConstantProvider
extends Object
implements NullValueProvider, Serializable
```
Simple NullValueProvider that will simply return given constant value when a null is encountered; or, with a specially constructed instance (see skipper(), indicate the need for special behavior of skipping property altogether (not setting as anything OR throwing exception).

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type Field and Description

protected AccessPattern _access

protected Object _nullValue

Fields
Modifier and Type	Field and Description
`protected AccessPattern`	`_access`
`protected Object`	`_nullValue`

Constructor Summary

Constructors
Modifier Constructor and Description

protected NullsConstantProvider(Object nvl)

Constructors
Modifier	Constructor and Description
`protected`	`NullsConstantProvider(Object nvl)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`static NullsConstantProvider`	`forValue(Object nvl)`
`AccessPattern`	`getNullAccessPattern()` Accessor that may be used to determine if and when provider must be called to access null replacement value.
`Object`	`getNullValue(DeserializationContext ctxt)` Method called to possibly convert incoming `null` token (read via underlying streaming input source) into other value of type accessor supports.
`static boolean`	`isNuller(NullValueProvider p)` Utility method that can be used to check if given null value provider is "nuller", no-operation provider that will always simply return Java `null` for any and all input `null`s.
`static boolean`	`isSkipper(NullValueProvider p)` Utility method that can be used to check if given null value provider is "skipper", marker provider that means that all input `null`s should be skipped (ignored), instead of converted
`static NullsConstantProvider`	`nuller()`
`static NullsConstantProvider`	`skipper()` Static accessor for a stateless instance used as marker, to indicate that all input `null` values should be skipped (ignored), so that no corresponding property value is set (with POJOs), and no content values (array/Collection elements, Map entries) are added.

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

Methods inherited from interface com.fasterxml.jackson.databind.deser.NullValueProvider
getAbsentValue

- Field Detail
  - _nullValue
```
protected final Object _nullValue
```
  - _access
```
protected final AccessPattern _access
```
- Constructor Detail
  - NullsConstantProvider
```
protected NullsConstantProvider(Object nvl)
```
- Method Detail
  - skipper
```
public static NullsConstantProvider skipper()
```
    Static accessor for a stateless instance used as marker, to indicate that all input `null` values should be skipped (ignored), so that no corresponding property value is set (with POJOs), and no content values (array/Collection elements, Map entries) are added.
  - nuller
```
public static NullsConstantProvider nuller()
```
  - forValue
```
public static NullsConstantProvider forValue(Object nvl)
```
  - isSkipper
```
public static boolean isSkipper(NullValueProvider p)
```
    Utility method that can be used to check if given null value provider is "skipper", marker provider that means that all input `null`s should be skipped (ignored), instead of converted
  - isNuller
```
public static boolean isNuller(NullValueProvider p)
```
    Utility method that can be used to check if given null value provider is "nuller", no-operation provider that will always simply return Java `null` for any and all input `null`s.
  - getNullAccessPattern
```
public AccessPattern getNullAccessPattern()
```
    Description copied from interface: NullValueProvider
    
    Accessor that may be used to determine if and when provider must be called to access null replacement value.
    
    Specified by:
    
    getNullAccessPattern in interface NullValueProvider
  - getNullValue
```
public Object getNullValue(DeserializationContext ctxt)
```
    Description copied from interface: NullValueProvider
    
    Method called to possibly convert incoming `null` token (read via underlying streaming input source) into other value of type accessor supports. May return `null`, or value compatible with type binding.
    NOTE: if NullValueProvider.getNullAccessPattern() returns `ALWAYS_NULL` or `CONSTANT`, this method WILL NOT use provided `ctxt` and it may thus be passed as `null`.
    
    Specified by:
    
    getNullValue in interface NullValueProvider

Class NullsConstantProvider

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface com.fasterxml.jackson.databind.deser.NullValueProvider

Field Detail

_nullValue

_access

Constructor Detail

NullsConstantProvider

Method Detail

skipper

nuller

forValue

isSkipper

isNuller

getNullAccessPattern

getNullValue