IResourceVersion (Wicket Core 9.0.0-SNAPSHOT API)

All Known Implementing Classes:

CachingResourceVersion, LastModifiedResourceVersion, MessageDigestResourceVersion, RequestCycleCachedResourceVersion, StaticResourceVersion
```
public interface IResourceVersion
```
Provides a version string for a cacheable resource specified by IStaticCacheableResource
the version string will be used as a distinguishing mark when rendering resources

Since:

1.5

Author:

Peter Ertl

See Also:

QueryStringWithVersionResourceCachingStrategy, FilenameWithVersionResourceCachingStrategy

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.lang.String`	`getVersion(IStaticCacheableResource resource)`	get unique string identifying the version of the resource
`java.util.regex.Pattern`	`getVersionPattern()`	a pattern that matches returned versions

- Method Detail
  - getVersion
```
java.lang.String getVersion(IStaticCacheableResource resource)
```
    get unique string identifying the version of the resource
    
    Parameters:
    
    resource - cacheable resource
    
    Returns:
    
    unique version string or null if version string could not be calculated
  - getVersionPattern
```
java.util.regex.Pattern getVersionPattern()
```
    a pattern that matches returned versions
    
    Returns:
    
    a pattern or null if no pattern is available