org.apache.tapestry5.internal.services

## Class UrlAsset

- java.lang.Object
- - org.apache.tapestry5.internal.services.AbstractAsset
  - - org.apache.tapestry5.internal.services.UrlAsset

- All Implemented Interfaces:
    Asset, Asset2

      public class UrlAsset
      extends AbstractAsset

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `UrlAsset(String url, Resource resource)`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `Resource` | `getResource()` Returns the underlying Resource for the Asset.
    `String` | `toClientURL()` Returns a URL that can be passed, unchanged, to the client in order for it to access the resource.

    - ### Methods inherited from class org.apache.tapestry5.internal.services.AbstractAsset

      `isInvariant, toString`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

- - ### Constructor Detail

    - #### UrlAsset

          public UrlAsset(String url,
                          Resource resource)

  - ### Method Detail

    - #### toClientURL

          public String toClientURL()

      Description copied from interface: `Asset`
      Returns a URL that can be passed, unchanged, to the client in order for it to access the resource. The same value is returned from `toString()`. Tapestry's built-in asset types (context and classpath) always incorporate a checksum as part of the path, and alternate implementations are encouraged to do so as well. In addition, Tapestry ensures that context and classpath assets have a far-future expires header (to ensure aggressive caching by the client). Note that starting in Tapestry 5.4, it is expected that Asset instances recognize when the underlying Resource's content has changed, and update the clientURL to reflect the new content's checksum. This wasn't an issue in earlier releases where the clientURL incorporated a version number. Finally, starting in 5.4, this value will often be variant: the exact URL returned will depend on whether the underlying resource content is compressable, whether the current `Request` supports compression.
      See Also:
        `AssetSource`, `AssetPathConverter`

    - #### getResource

          public Resource getResource()

      Description copied from interface: `Asset`
      Returns the underlying Resource for the Asset.

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