Package javax.el

Class FactoryFinder

  • class FactoryFinder
extends java.lang.Object

    • Constructor Summary

      Constructors 
      Constructor Description
      FactoryFinder()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      (package private) static java.lang.Object find​(java.lang.String factoryId, java.lang.String fallbackClassName, java.util.Properties properties)
      Finds the implementation Class object for the given factory name, or if that fails, finds the Class object for the given fallback class name.
      private static java.lang.Object newInstance​(java.lang.String className, java.lang.ClassLoader classLoader, java.util.Properties properties)
      Creates an instance of the specified class using the specified ClassLoader object.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • FactoryFinder

        FactoryFinder()

    • Method Detail

      • newInstance

        private static java.lang.Object newInstance​(java.lang.String className,
                                            java.lang.ClassLoader classLoader,
                                            java.util.Properties properties)
        Creates an instance of the specified class using the specified ClassLoader object.
        Throws:
        ELException - if the given class could not be found or could not be instantiated

      • find

        static java.lang.Object find​(java.lang.String factoryId,
                             java.lang.String fallbackClassName,
                             java.util.Properties properties)
        Finds the implementation Class object for the given factory name, or if that fails, finds the Class object for the given fallback class name. The arguments supplied must be used in order. If using the first argument is successful, the second one will not be used.

        This method is package private so that this code can be shared.

        Parameters:
        factoryId - the name of the factory to find, which is a system property
        fallbackClassName - the implementation class name, which is to be used only if nothing else is found; null to indicate that there is no fallback class name
        Returns:
        the Class object of the specified message factory; may not be null
        Throws:
        ELException - if there is an error