Package dev.getelements.elements.sdk.spi

Class ElementClassLoader

java.lang.Object

java.lang.ClassLoader

dev.getelements.elements.sdk.spi.ElementClassLoader

public class ElementClassLoader
extends ClassLoader

A ClassLoader type which inspects classes at load time processing the visibility annotations provided by the Elements' SDK. Such annotations include ElementPrivate and ElementPublic. This implementation allows for a separate hierarchy of classes to be loaded for each Element, while still allowing some parts of the core system through. The delegate ClassLoader is typically the system class loader.

Constructor Summary

Constructors

Constructor	Description
ElementClassLoader(ClassLoader delegate)	Creates a new instance of ElementClassLoader with the specified delegate class loader.
ElementClassLoader(ClassLoader delegate, ClassLoader parent)	Creates a new instance of ElementClassLoader with the specified delegate class loader.

Method Summary

Modifier and Type	Method	Description
protected URL	findResource(String name)
protected Enumeration<URL>	findResources(String name)
ElementRecord	getElementRecord()
protected Class<?>	loadClass(String name, boolean resolve)
void	setElementRecord(ElementRecord elementRecord)

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findClass, findClass, findLibrary, findLoadedClass, findResource, 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 Details

ElementClassLoader

public ElementClassLoader(ClassLoader delegate)

Creates a new instance of ElementClassLoader with the specified delegate class loader. The delegate loader will be the sources for classes that are not found in this class loader. This is typically the system class path and the Element's class path. This constructor uses the bootstrap as the parent class loader.

Parameters:

delegate - the delegate class loader to use for loading classes that are not found in this class loader.

ElementClassLoader

public ElementClassLoader(ClassLoader delegate,
 ClassLoader parent)

Creates a new instance of ElementClassLoader with the specified delegate class loader. The delegate loader will be the sources for classes that are not found in this class loader. This is typically the system class path and the Element's class path.

Parameters:

delegate - the delegate class loader to use for loading classes that are not found in this class loader.

parent - the parent class loader to use for loading classes that are not found in this class loader.

Method Details

getElementRecord

public ElementRecord getElementRecord()

setElementRecord

public void setElementRecord(ElementRecord elementRecord)

findResource

protected URL findResource(String name)

Overrides:

findResource in class ClassLoader

findResources

protected Enumeration<URL> findResources(String name)
                                  throws IOException

Overrides:

findResources in class ClassLoader

Throws:

IOException

loadClass

protected Class<?> loadClass(String name,
 boolean resolve)
                      throws ClassNotFoundException

Overrides:

loadClass in class ClassLoader

Throws:

ClassNotFoundException