CacheFile (The Adobe Experience Manager SDK 2021.8.5705.20210810T082946Z-210700)

```
@ProviderType
public interface CacheFile
```
A cache file contains the response headers and body that can be delivered on subsequent requests for the same resource. TODO: currently there are methods that only makes sense while either using an existing cache file or creating a new one: it might be more appropriate to create separate interfaces for that.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`discard()`	Discard this cache file.
`Headers`	`getHeaders()`	Return the HTTP response headers stored with this entry.
`String`	`getKey()`	Return the cache key.
`ServletOutputStream`	`getOutputStream(ServletOutputStream base)`	Open an output stream that will contain a copy of the response body.
`PrintWriter`	`getWriter(PrintWriter base, String encoding)`	Open a print writer.
`boolean`	`save()`	Keep this cache file.
`void`	`spool(HttpServletResponse response)`	Spool the cache file's contents to a response.

- Method Detail
  - getKey
```
String getKey()
```
    Return the cache key.
    
    Returns:
    
    cache key
  - getHeaders
```
Headers getHeaders()
```
    Return the HTTP response headers stored with this entry.
    
    Returns:
    
    response headers
  - spool
```
void spool(HttpServletResponse response)
    throws IOException
```
    Spool the cache file's contents to a response.
    
    Parameters:
    
    response - servlet response
    
    Throws:
    
    IOException - if an I/O error occurs
  - getOutputStream
```
ServletOutputStream getOutputStream(ServletOutputStream base)
                             throws IOException
```
    Open an output stream that will contain a copy of the response body.
    
    Parameters:
    
    base - base output stream
    
    Returns:
    
    servlet output stream
    
    Throws:
    
    IOException - if an I/O error occurs
  - getWriter
```
PrintWriter getWriter(PrintWriter base,
                      String encoding)
               throws IOException
```
    Open a print writer.
    
    Parameters:
    
    base - base writer
    
    encoding - response body encoding
    
    Returns:
    
    writer
    
    Throws:
    
    IOException - if an I/O error occurs
  - save
```
boolean save()
```
    Keep this cache file.
    
    Returns:
    
    true if the save was successful; false otherwise
  - discard
```
void discard()
```
    Discard this cache file.