Package org.apache.tapestry5.ioc.services

## Interface UpdateListener

- All Known Subinterfaces:
    `MessagesSource`
  All Known Implementing Classes:
    `AbstractReloadableObjectCreator`, `ComponentInstantiatorSourceImpl`, `ComponentMessagesSourceImpl`, `ComponentTemplateSourceImpl`, `DynamicTemplateParserImpl`, `MessagesSourceImpl`, `ReloadableObjectCreator`, `ReloadableServiceImplementationObjectCreator`, `ResourceChangeTrackerImpl`

      public interface UpdateListener

  Interface for objects which can periodically check for updates. Note that this interface has moved from module tapestry-core to tapestry-ioc, but has kept the same package (for backwards compatibility reasons).
  Since:
    5.1.0.0
  See Also:
    `UpdateListenerHub`

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | `checkForUpdates()` | Invoked to force the receiver to check for updates to whatever underlying resources it makes use of.

- - ### Method Detail

    - #### checkForUpdates

          void checkForUpdates()

      Invoked to force the receiver to check for updates to whatever underlying resources it makes use of.