Class ConfigurationSpi



  • public abstract class ConfigurationSpi
    extends Object
    This class defines the Service Provider Interface ( SPI) for the Configuration class. All the abstract methods in this class must be implemented by each service provider who wishes to supply a Configuration implementation.

    Subclass implementations of this abstract class must provide a public constructor that takes a Configuration.Parameters object as an input parameter. This constructor also must throw an IllegalArgumentException if it does not understand the Configuration.Parameters input.

    Since:
    1.6
    • Constructor Detail

      • ConfigurationSpi

        public ConfigurationSpi()
    • Method Detail

      • engineGetAppConfigurationEntry

        protected abstract AppConfigurationEntry[] engineGetAppConfigurationEntry(String name)
        Retrieve the AppConfigurationEntries for the specified name.

        Parameters:
        name - the name used to index the Configuration.
        Returns:
        an array of AppConfigurationEntries for the specified name, or null if there are no entries.
      • engineRefresh

        protected void engineRefresh()
        Refresh and reload the Configuration.

        This method causes this Configuration object to refresh/reload its contents in an implementation-dependent manner. For example, if this Configuration object stores its entries in a file, calling refresh may cause the file to be re-read.

        The default implementation of this method does nothing. This method should be overridden if a refresh operation is supported by the implementation.

        Throws:
        SecurityException - if the caller does not have permission to refresh its Configuration.