NullFieldException (Flink : Core 1.20.2-cp1 API)

java.lang.Object
- java.lang.Throwable
- - java.lang.Exception
  - - java.lang.RuntimeException
    - - org.apache.flink.types.NullFieldException

All Implemented Interfaces:

Serializable
```
@Public
public class NullFieldException
extends RuntimeException
```
An exception specifying that a required field was not set in a record, i.e. was null .

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor	Description
`NullFieldException()`	Constructs an `NullFieldException` with `null` as its error detail message.
`NullFieldException(int fieldIdx)`	Constructs an `NullFieldException` with a default message, referring to given field number as the null field.
`NullFieldException(int fieldIdx, Throwable cause)`	Constructs an `NullFieldException` with a default message, referring to given field number as the null field and a cause (Throwable)
`NullFieldException(String message)`	Constructs an `NullFieldException` with the specified detail message.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method Description

int getFieldPos()
Gets the field number that was attempted to access.
- Methods inherited from class java.lang.Throwable
  addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - NullFieldException
```
public NullFieldException()
```
    Constructs an NullFieldException with null as its error detail message.
  - NullFieldException
```
public NullFieldException(String message)
```
    Constructs an NullFieldException with the specified detail message.
    
    Parameters:
    
    message - The detail message.
  - NullFieldException
```
public NullFieldException(int fieldIdx)
```
    Constructs an NullFieldException with a default message, referring to given field number as the null field.
    
    Parameters:
    
    fieldIdx - The index of the field that was null, but expected to hold a value.
  - NullFieldException
```
public NullFieldException(int fieldIdx,
                          Throwable cause)
```
    Constructs an NullFieldException with a default message, referring to given field number as the null field and a cause (Throwable)
    
    Parameters:
    
    fieldIdx - The index of the field that was null, but expected to hold a value.
    
    cause - Pass the root cause of the error
- Method Detail
  - getFieldPos
```
public int getFieldPos()
```
    Gets the field number that was attempted to access. If the number is not set, this method returns -1.
    
    Returns:
    
    The field number that was attempted to access, or -1, if not set.