ResourceResolverChain (Spring Framework 4.3.30.RELEASE API)

```
public interface ResourceResolverChain
```
A contract for invoking a chain of ResourceResolvers where each resolver is given a reference to the chain allowing it to delegate when necessary.
Since:
4.1
Author:
Jeremy Grelle, Rossen Stoyanchev, Sam Brannen

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Resource`	`resolveResource(HttpServletRequest request, String requestPath, List<? extends Resource> locations)`	Resolve the supplied request and request path to a `Resource` that exists under one of the given resource locations.
`String`	`resolveUrlPath(String resourcePath, List<? extends Resource> locations)`	Resolve the externally facing public URL path for clients to use to access the resource that is located at the given internal resource path.

- Method Detail
  - resolveResource
```
Resource resolveResource(HttpServletRequest request,
                         String requestPath,
                         List<? extends Resource> locations)
```
    Resolve the supplied request and request path to a Resource that exists under one of the given resource locations.
    Parameters:
    request - the current request
    requestPath - the portion of the request path to use
    locations - the locations to search in when looking up resources
    Returns:
    the resolved resource or null if unresolved
  - resolveUrlPath
```
String resolveUrlPath(String resourcePath,
                      List<? extends Resource> locations)
```
    Resolve the externally facing public URL path for clients to use to access the resource that is located at the given internal resource path.
    This is useful when rendering URL links to clients.
    Parameters:
    resourcePath - the internal resource path
    locations - the locations to search in when looking up resources
    Returns:
    the resolved public URL path or null if unresolved