ResourceBundleControlProvider (Java SE 12 & JDK 12 )
Keywords: java.util.spi.ResourceBundleControlProvider interface

Module java.base
Package java.util.spi

## Interface ResourceBundleControlProvider

-     public interface ResourceBundleControlProvider

  An interface for service providers that provide implementations of `ResourceBundle.Control`. The default resource bundle loading behavior of the `ResourceBundle.getBundle` factory methods that take no `ResourceBundle.Control` instance can be modified with `ResourceBundleControlProvider` implementations.

  Provider implementations are loaded from the application's class path using `ServiceLoader` at the first invocation of the `ResourceBundle.getBundle` factory method that takes no `ResourceBundle.Control` instance.

  All `ResourceBundleControlProvider`s are ignored in named modules.

  Since:
    1.8
  See Also:
    `ResourceBundle.getBundle`, `ServiceLoader.load(Class)`

- - ### Method Summary

    Modifier and Type | Method | Description
    --- | --- | ---
    `ResourceBundle.Control` | `getControl​(String baseName)` | Returns a `ResourceBundle.Control` instance that is used to handle resource bundle loading for the given `baseName`.

- - ### Method Detail

    - #### getControl

          ResourceBundle.Control getControl​(String baseName)

      Returns a `ResourceBundle.Control` instance that is used to handle resource bundle loading for the given `baseName`. This method must return `null` if the given `baseName` isn't handled by this provider.
      Parameters:
        `baseName` - the base name of the resource bundle
      Returns:
        a `ResourceBundle.Control` instance, or `null` if the given `baseName` is not applicable to this provider.
      Throws:
        `NullPointerException` - if `baseName` is `null`