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: 4.8.23 Reference Object

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`@Nullable java.lang.String`	`getDescription()`
`java.lang.String`	`getRef()`	$ref value.
`@Nullable java.lang.String`	`getSummary()`
`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 // todo do not throw, let getRefObject() throw
  - getSummary
```
@Nullable java.lang.String getSummary()
```
  - getDescription
```
@Nullable java.lang.String getDescription()
```