Class PluginClassDescriptor<T>

  • Type Parameters:
    T - Type of the instances created from this descriptor.
    Direct Known Subclasses:
    EqualityHelperExtensionProviderDescriptorRCPImpl, PostProcessorDescriptor, WeightProviderDescriptorRCPImpl

    public class PluginClassDescriptor<T>
    extends Object
    Simple utility class to create proxy of extension that are instantiable.

    No test of the validity of the wrapped IConfigurationElement is performed. As such you should always extend this class while listening to the IExtensionRegistry and react properly the removal of the wrapped IConfigurationElement.

    Note: this is based on org.eclipse.emf.ecore.plugin.RegistryReader.PluginClassDescriptor

    • Field Detail

      • element

        protected org.eclipse.core.runtime.IConfigurationElement element
        The element from which create an instance.
      • attributeName

        protected String attributeName
        The name of the attribute that holds the class full name to be instantiated.
    • Constructor Detail

      • PluginClassDescriptor

        public PluginClassDescriptor​(org.eclipse.core.runtime.IConfigurationElement element,
                                     String attributeName)
        Creates a new descriptor for given element keeping the class name to be instantiated in an attribute named attributeName.
        Parameters:
        element - The element from which create an instance.
        attributeName - The name of the attribute that holds the class full name to be instantiated.
    • Method Detail

      • createInstance

        protected T createInstance()
        Creates a new instance.
        Returns:
        the new instance.
        Throws:
        RuntimeException - wraps a CoreException if an instance of the executable extension could not be created for any reason.