org.springframework.web.servlet.resource

## Interface VersionStrategy

- All Superinterfaces:
    VersionPathStrategy
  All Known Implementing Classes:
    AbstractVersionStrategy, ContentVersionStrategy, FixedVersionStrategy

      public interface VersionStrategy
      extends VersionPathStrategy

  An extension of `VersionPathStrategy` that adds a method to determine the actual version of a `Resource`.
  Since:
    4.1
  Author:
    Brian Clozel, Rossen Stoyanchev
  See Also:
    `VersionResourceResolver`

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `String` | `getResourceVersion(Resource resource)` Determine the version for the given resource.

    - ### Methods inherited from interface org.springframework.web.servlet.resource.VersionPathStrategy

      `addVersion, extractVersion, removeVersion`

- - ### Method Detail

    - #### getResourceVersion

          String getResourceVersion(Resource resource)

      Determine the version for the given resource.
      Parameters:
        `resource` - the resource to check
      Returns:
        the version (never `null`)