Package org.eclipse.epsilon.common.dt.extensions

Class ClassBasedExtension

  • public class ClassBasedExtension
extends java.lang.Object
    Class which looks up and creates the instances of the classes referred to through the specified extension point. The extension point must declare an attribute of type "java" and name CLASS_PROPERTY. Referenced classes should implement a certain interface or inherit from a certain class.
    Version:
    1.0
    Author:
    Antonio García-Domínguez

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static java.lang.String CLASS_PROPERTY  

    • Constructor Summary

      Constructors 
      Constructor Description
      ClassBasedExtension​(org.eclipse.core.runtime.IConfigurationElement configElement, java.lang.Class<?> expectedClass)
      Creates a new instance.

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.Object createInstance()
      Instantiates the referenced class.
      java.lang.String getClassName()
      Returns the fully qualified class name of the referenced class, as set in the extension.
      static <T> java.util.List<T> getImplementations​(java.lang.String extensionPointID, java.lang.Class<T> expectedClass)
      Returns a list with instances of the classes registered in the available extensions for this extension point.
      static java.util.List<ClassBasedExtension> getInstances​(java.lang.String extensionPointID, java.lang.Class<?> expectedClass)
      Returns a list with the available extensions for this extension point.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • ClassBasedExtension

        public ClassBasedExtension​(org.eclipse.core.runtime.IConfigurationElement configElement,
                           java.lang.Class<?> expectedClass)
        Creates a new instance.
        Parameters:
        configElement - Configuration element from the extension element.
        expectedClass - Superclass or interface to which the referenced class should comply.

    • Method Detail

      • getInstances

        public static java.util.List<ClassBasedExtension> getInstances​(java.lang.String extensionPointID,
                                                               java.lang.Class<?> expectedClass)
        Returns a list with the available extensions for this extension point.

      • getImplementations

        public static <T> java.util.List<T> getImplementations​(java.lang.String extensionPointID,
                                                       java.lang.Class<T> expectedClass)
                                                throws IllegalExtensionException
        Returns a list with instances of the classes registered in the available extensions for this extension point.
        Throws:
        IllegalExtensionException

      • getClassName

        public java.lang.String getClassName()
        Returns the fully qualified class name of the referenced class, as set in the extension.