org.apache.tez.common

Class TezClassLoader

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

org.apache.tez.common.TezClassLoader

All Implemented Interfaces:

Closeable, AutoCloseable

public class TezClassLoader
extends URLClassLoader

ClassLoader to allow addition of new paths to classpath in the runtime. It uses URLClassLoader with this class' classloader as parent classloader. And hence first delegates the resource loading to parent and then to the URLs added. The process must be setup to use by invoking setupTezClassLoader() which sets the global TezClassLoader as current thread context class loader. All threads created will inherit the classloader and hence will resolve the class/resource from TezClassLoader.

Method Summary

Modifier and Type	Method and Description
void	addURL(URL url)
static TezClassLoader	getInstance()
static void	setupForConfiguration(org.apache.hadoop.conf.Configuration configuration)
static void	setupTezClassLoader()

Methods inherited from class java.net.URLClassLoader

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, findLibrary, findLoadedClass, findSystemClass, getClassLoadingLock, getPackage, getPackages, getParent, getResource, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, loadClass, 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

Method Detail

addURL

public void addURL(URL url)

Overrides:

addURL in class URLClassLoader

getInstance

public static TezClassLoader getInstance()

setupTezClassLoader

public static void setupTezClassLoader()

setupForConfiguration

public static void setupForConfiguration(org.apache.hadoop.conf.Configuration configuration)