ErrorOnUnknown (opensearch-x-content 1.3.12 API)

```
public interface ErrorOnUnknown
```
Extension point to customize the error message for unknown fields. We expect OpenSearch to plug a fancy implementation that uses Lucene's spelling correction infrastructure to suggest corrections.

Field Summary

Fields
Modifier and Type Field Description

static ErrorOnUnknown IMPLEMENTATION
The implementation of this interface that was loaded from SPI.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.lang.String`	`errorMessage(java.lang.String parserName, java.lang.String unknownField, java.lang.Iterable<java.lang.String> candidates)`	Build the error message to use when `ObjectParser` encounters an unknown field.
`static ErrorOnUnknown`	`findImplementation()`
`int`	`priority()`	Priority that this error message handler should be used.

- Field Detail
  - IMPLEMENTATION
```
static final ErrorOnUnknown IMPLEMENTATION
```
    The implementation of this interface that was loaded from SPI.
- Method Detail
  - errorMessage
```
java.lang.String errorMessage(java.lang.String parserName,
                              java.lang.String unknownField,
                              java.lang.Iterable<java.lang.String> candidates)
```
    Build the error message to use when ObjectParser encounters an unknown field.
    
    Parameters:
    
    parserName - the name of the thing we're parsing
    
    unknownField - the field that we couldn't recognize
    
    candidates - the possible fields
  - priority
```
int priority()
```
    Priority that this error message handler should be used.
  - findImplementation
```
static ErrorOnUnknown findImplementation()
```