Package edu.mit.simile.butterfly

Class ButterflyClassLoader

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

edu.mit.simile.butterfly.ButterflyClassLoader

All Implemented Interfaces:

Closeable, AutoCloseable

public class ButterflyClassLoader
extends URLClassLoader

This is Butterfly's own classloader that allows it to load classes and libraries from modules directly, instead of forcing them to be in the container's classpath or in the WEB-INF/(classes|lib) folders. This allows modules to be developed in isolation. Also, this classloader is capable of monitoring changes to the loaded classes (or to special files that we want watched for changes) and it's capable of executing a given Runnable action when such changes occur.

Constructor Summary

Constructors

Constructor	Description
ButterflyClassLoader(ClassLoader parent)

Method Summary

Modifier and Type	Method	Description
void	addRepository(File repository)
TimerTask	getClassLoaderWatcher(Runnable trigger)
void	watch(File file)

Methods inherited from class java.net.URLClassLoader

addURL, close, definePackage, findClass, findResource, findResources, getPermissions, getResourceAsStream, getURLs, newInstance, newInstance

Methods inherited from class java.security.SecureClassLoader

defineClass, defineClass

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findClass, findLibrary, findLoadedClass, findResource, findSystemClass, getClassLoadingLock, getDefinedPackage, getDefinedPackages, getName, getPackage, getPackages, getParent, getPlatformClassLoader, getResource, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, getUnnamedModule, isRegisteredAsParallelCapable, loadClass, 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

ButterflyClassLoader

public ButterflyClassLoader(ClassLoader parent)

Method Details

getClassLoaderWatcher

public TimerTask getClassLoaderWatcher(Runnable trigger)

addRepository

public void addRepository(File repository)

watch

public void watch(File file)