Package org.eclipse.jetty.webapp

Class CachingWebAppClassLoader

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

org.eclipse.jetty.webapp.WebAppClassLoader

org.eclipse.jetty.webapp.CachingWebAppClassLoader

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, ClassVisibilityChecker

@ManagedObject
public class CachingWebAppClassLoader
extends WebAppClassLoader

A WebAppClassLoader that caches getResource(String) results. Specifically this ClassLoader caches not found classes and resources, which can greatly increase performance for applications that search for resources.

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.jetty.webapp.WebAppClassLoader

WebAppClassLoader.Context

Constructor Summary

Constructors

Constructor	Description
CachingWebAppClassLoader(java.lang.ClassLoader parent, WebAppClassLoader.Context context)
CachingWebAppClassLoader(WebAppClassLoader.Context context)

Method Summary

Modifier and Type	Method	Description
void	clearCache()
java.net.URL	getResource(java.lang.String name)	Get a resource from the classloader NOTE: this method provides a convenience of hacking off a leading / should one be present.
java.lang.Class<?>	loadClass(java.lang.String name)
java.lang.String	toString()

Methods inherited from class org.eclipse.jetty.webapp.WebAppClassLoader

addClassFileTransformer, addClassPath, addClassPath, addJars, addTransformer, close, findClass, foundClass, getContext, getName, getPermissions, getResources, isServerClass, isSystemClass, loadAsResource, loadClass, removeClassFileTransformer, removeTransformer, runWithServerClassAccess, setName

Methods inherited from class java.net.URLClassLoader

addURL, definePackage, findResource, findResources, 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, getPackage, getPackages, getParent, getPlatformClassLoader, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, getUnnamedModule, isRegisteredAsParallelCapable, registerAsParallelCapable, resolveClass, resources, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

Methods inherited from class java.lang.Object

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

Constructor Detail

CachingWebAppClassLoader

public CachingWebAppClassLoader(java.lang.ClassLoader parent,
                                WebAppClassLoader.Context context)
                         throws java.io.IOException

Throws:

java.io.IOException

CachingWebAppClassLoader

public CachingWebAppClassLoader(WebAppClassLoader.Context context)
                         throws java.io.IOException

Throws:

java.io.IOException

Method Detail

getResource

public java.net.URL getResource(java.lang.String name)

Description copied from class: WebAppClassLoader

Get a resource from the classloader NOTE: this method provides a convenience of hacking off a leading / should one be present. This is non-standard and it is recommended to not rely on this behavior

Overrides:

getResource in class WebAppClassLoader

loadClass

public java.lang.Class<?> loadClass(java.lang.String name)
                             throws java.lang.ClassNotFoundException

Overrides:

loadClass in class java.lang.ClassLoader

Throws:

java.lang.ClassNotFoundException

clearCache

@ManagedOperation
public void clearCache()

toString

public java.lang.String toString()

Overrides:

toString in class WebAppClassLoader