Package org.codehaus.groovy.runtime.metaclass

Class ReflectorLoader

  • public class ReflectorLoader
extends java.lang.ClassLoader
    Reflector creation helper. This class is used to define the Reflector classes. For each ClassLoader such a loader will be created by MetaClass. Special about this loader is, that it knows the classes form the Groovy Runtime. The Reflector class is resolved in different ways: During the definition of a class Reflector will resolve to the Reflector class of the runtime, even if there is another Reflector class in the parent loader. After the new class is defined Reflector will resolve like other Groovy classes. This loader is able to resolve all Groovy classes even if the parent does not know them, but the parent serves first (Reflector during a class definition is different).

    • Constructor Summary

      Constructors 
      Constructor Description
      ReflectorLoader​(java.lang.ClassLoader parent)
      creates a ReflectorLoader.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.Class defineClass​(java.lang.String name, byte[] bytecode, java.security.ProtectionDomain domain)
      helper method to define Reflector classes.
      protected java.lang.Class findClass​(java.lang.String name)
      Tries to find a Groovy class.
      java.lang.Class getLoadedClass​(java.lang.String name)
      try to load one of the defined Reflector classes by name.
      protected java.lang.Class loadClass​(java.lang.String name, boolean resolve)
      Loads a class per name.

      • Methods inherited from class java.lang.ClassLoader

        clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findClass, findLibrary, findLoadedClass, findResource, findResource, findResources, findSystemClass, getClassLoadingLock, getDefinedPackage, getDefinedPackages, getName, getPackage, getPackages, getParent, getPlatformClassLoader, getResource, getResourceAsStream, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, getUnnamedModule, isRegisteredAsParallelCapable, loadClass, registerAsParallelCapable, resolveClass, resources, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • ReflectorLoader

        public ReflectorLoader​(java.lang.ClassLoader parent)
        creates a ReflectorLoader.
        Parameters:
        parent - the parent loader. This should never be null!

    • Method Detail

      • findClass

        protected java.lang.Class findClass​(java.lang.String name)
                             throws java.lang.ClassNotFoundException
        Tries to find a Groovy class.
        Overrides:
        findClass in class java.lang.ClassLoader
        Returns:
        the class if found
        Throws:
        java.lang.ClassNotFoundException - if not found

      • loadClass

        protected java.lang.Class loadClass​(java.lang.String name,
                                    boolean resolve)
                             throws java.lang.ClassNotFoundException
        Loads a class per name. Unlike a normal loadClass this version behaves different during a class definition. In that case it checks if the class we want to load is Reflector and returns class if the check is successful. If it is not during a class definition it just calls the super class version of loadClass.
        Overrides:
        loadClass in class java.lang.ClassLoader
        Parameters:
        name - of the class to load
        resolve - is true if the class should be resolved
        Throws:
        java.lang.ClassNotFoundException
        See Also:
        Reflector, ClassLoader.loadClass(String, boolean)

      • defineClass

        public java.lang.Class defineClass​(java.lang.String name,
                                   byte[] bytecode,
                                   java.security.ProtectionDomain domain)
        helper method to define Reflector classes.
        Parameters:
        name - of the Reflector
        bytecode - the bytecode
        domain - the protection domain
        Returns:
        the generated class

      • getLoadedClass

        public java.lang.Class getLoadedClass​(java.lang.String name)
        try to load one of the defined Reflector classes by name.
        Parameters:
        name - of the Reflector class
        Returns:
        the Reflector class if defined else null.