Java Doc for AppClassLoader.java in  » Testing » abbot-1.0.1 » abbot » script » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Testing » abbot 1.0.1 » abbot.script 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.net.URLClassLoader
   abbot.util.PathClassLoader
      abbot.util.NonDelegatingClassLoader
         abbot.script.AppClassLoader

AppClassLoader
public class AppClassLoader extends NonDelegatingClassLoader (Code)
A custom class loader which installs itself as if it were the application class loader. A classpath of null is equivalent to the system property java.class.path.

The class loader may optionally load a class before the parent class loader gets a chance to look for the class (instead of the default behavior, which always delegates to the parent class loader first). This behavior enables the class to be reloaded simply by using a new instance of this class loader with each launch of the app.

This class mimics the behavior of sun.misc.Launcher$AppClassLoader as much as possible.

Bootstrap classes are always delegated to the bootstrap loader, with the exception of the sun.applet package, which should never be delegated, since it does not work properly unless it is reloaded.

The parent of this class loader will be the normal, default AppClassLoader (specifically, the class loader which loaded this class will be used).




Constructor Summary
public  AppClassLoader()
     Constructs an AppClassLoader using the current classpath (as found in java.class.path).
public  AppClassLoader(String classPath)
    

Method Summary
public  ClassfindClass(String name)
     Finds and loads the class with the specified name from the search path.
public  voidinstall()
     Ensure that everything else subsequently loaded on the same thread or any subsequently spawned threads uses the given class loader.
public  booleanisEventDispatchThread()
    
public  booleanisInstalled()
    
protected  booleanshouldDelegate(String name)
    
public  StringtoString()
    
public  voiduninstall()
     Reverse the effects of install.


Constructor Detail
AppClassLoader
public AppClassLoader()(Code)
Constructs an AppClassLoader using the current classpath (as found in java.class.path).



AppClassLoader
public AppClassLoader(String classPath)(Code)
Constructs a AppClassLoader with a custom classpath, indicating whether the class loader should delegate to its parent class loader prior to searching for a given resource.

The class path argument may use either a colon or semicolon to separate its elements.





Method Detail
findClass
public Class findClass(String name) throws ClassNotFoundException(Code)
Finds and loads the class with the specified name from the search path. If the class is a bootstrap class and must be preloaded, use our own bootstrap loader. If it is an extension class, use our own extensions loader.
Parameters:
  name - the name of the class the resulting class
exception:
  ClassNotFoundException - if the class could not be found



install
public void install()(Code)
Ensure that everything else subsequently loaded on the same thread or any subsequently spawned threads uses the given class loader. Also ensure that classes loaded by the event dispatch thread and threads it spawns use the given class loader.



isEventDispatchThread
public boolean isEventDispatchThread()(Code)



isInstalled
public boolean isInstalled()(Code)



shouldDelegate
protected boolean shouldDelegate(String name)(Code)
Should the parent class loader try to load this class first?



toString
public String toString()(Code)



uninstall
public void uninstall()(Code)
Reverse the effects of install. Has no effect if the class loader has not been installed on any thread.



Methods inherited from abbot.util.NonDelegatingClassLoader
public Class findClass(String name) throws ClassNotFoundException(Code)(Java Doc)
protected synchronized Class loadClass(String name, boolean resolve) throws ClassNotFoundException(Code)(Java Doc)
protected boolean shouldDelegate(String name)(Code)(Java Doc)

Methods inherited from abbot.util.PathClassLoader
public static String[] convertPathToFilenames(String path)(Code)(Java Doc)
public static File[] convertPathToFiles(String path, String seps)(Code)(Java Doc)
public String getClassPath()(Code)(Java Doc)
protected synchronized Class loadClass(String name, boolean resolve) throws ClassNotFoundException(Code)(Java Doc)
public String toString()(Code)(Java Doc)

Methods inherited from java.net.URLClassLoader
protected void addURL(URL url)(Code)(Java Doc)
protected Package definePackage(String name, Manifest man, URL url) throws IllegalArgumentException(Code)(Java Doc)
protected Class findClass(String name) throws ClassNotFoundException(Code)(Java Doc)
public URL findResource(String name)(Code)(Java Doc)
public Enumeration<URL> findResources(String name) throws IOException(Code)(Java Doc)
protected PermissionCollection getPermissions(CodeSource codesource)(Code)(Java Doc)
public URL[] getURLs()(Code)(Java Doc)
public static URLClassLoader newInstance(URL[] urls, ClassLoader parent)(Code)(Java Doc)
public static URLClassLoader newInstance(URL[] urls)(Code)(Java Doc)

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