RequestCartVersionResolver (Broadleaf Cart Operation Services 1.7.2-SNAPSHOT API)

All Known Implementing Classes:

HeaderRequestCartVersionResolver
```
public interface RequestCartVersionResolver
```
Used for determining what version of the cart the client is using based off of attributes from the request.

Author:

Jacob Mitash

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Optional<Integer>`	`resolveCartVersion(javax.servlet.http.HttpServletRequest request)`	Determines the client's cart version based off of some attribute of the request.

- Method Detail
  - resolveCartVersion
```
Optional<Integer> resolveCartVersion(javax.servlet.http.HttpServletRequest request)
```
    Determines the client's cart version based off of some attribute of the request.
    
    Parameters:
    
    request - the request to examine to determine the client's cart version
    
    Returns:
    
    the cart version, or empty if unavailable