Reference (openapi-parser 2023.2 API)

All Known Implementing Classes:

Example, Header, Parameter, PathItem, RequestBody, Response, Schema
```
public interface Reference
```
the Reference object.
See specification: 4.7.23 Reference Object JSON Reference

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  java.lang.String getRef()
  $ref value.
  
  boolean isRef()
  check if this is a $ref object.

- Method Detail
  - isRef
```
boolean isRef()
```
    check if this is a $ref object.
    
    Returns:
    
    true if $ref else false.
  - getRef
```
@Required
java.lang.String getRef()
```
    $ref value. Should be guarded by isRef(). Throws if isRef() is false.
    
    Returns:
    
    ref
    
    Throws:
    
    io.openapiprocessor.jsonschema.converter.NoValueException - if isRef() is false