org.codehaus.groovy.runtime.metaclass

## Class ReflectorLoader

- java.lang.Object
- - java.lang.ClassLoader
  - - org.codehaus.groovy.runtime.metaclass.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).
  Author:
    Jochen Theodorou

- - ### Constructor Summary

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

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and 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, findLibrary, findLoadedClass, findResource, findResources, findSystemClass, getClassLoadingLock, getPackage, getPackages, getParent, getResource, getResourceAsStream, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, loadClass, registerAsParallelCapable, resolveClass, 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.