vrml
Class FWJavaScriptClassLoader 
java.lang.Object
java.lang.ClassLoader
java.security.SecureClassLoader
vrml.FWJavaScriptClassLoader
- public final class FWJavaScriptClassLoader
- extends java.security.SecureClassLoader
| Nested classes inherited from class java.lang.ClassLoader |
|
| Methods inherited from class java.lang.ClassLoader |
clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findLibrary, findLoadedClass, findSystemClass, getPackage, getPackages, getParent, getResource, getResourceAsStream, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, loadClass, loadClass, resolveClass, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
baseURL
java.net.URL baseURL
myCodeSource
java.security.CodeSource myCodeSource
props
private static final java.lang.String[] props
FWJavaScriptClassLoader
public FWJavaScriptClassLoader(java.lang.String url)
findClass
protected java.lang.Class findClass(java.lang.String name)
throws java.lang.ClassNotFoundException
- Description copied from class:
java.lang.ClassLoader
- Called for every class name that is needed but has not yet been
defined by this classloader or one of its parents. It is called by
loadClass() after both findLoadedClass() and
parent.loadClass() couldn't provide the requested class.
The default implementation throws a
ClassNotFoundException. Subclasses should override this
method. An implementation of this method in a subclass should get the
class bytes of the class (if it can find them), if the package of the
requested class doesn't exist it should define the package and finally
it should call define the actual class. It does not have to resolve the
class. It should look something like the following:
// Get the bytes that describe the requested class
byte[] classBytes = classLoaderSpecificWayToFindClassBytes(name);
// Get the package name
int lastDot = name.lastIndexOf('.');
if (lastDot != -1)
{
String packageName = name.substring(0, lastDot);
// Look if the package already exists
if (getPackage(packageName) == null)
{
// define the package
definePackage(packageName, ...);
}
}
// Define and return the class
return defineClass(name, classBytes, 0, classBytes.length);
loadClass() makes sure that the Class
returned by findClass() will later be returned by
findLoadedClass() when the same class name is requested.
getPermissions
protected java.security.PermissionCollection getPermissions(java.security.CodeSource codesource)
- Description copied from class:
java.security.SecureClassLoader
- Returns a PermissionCollection for the specified CodeSource.
The default implementation invokes
java.security.Policy.getPermissions.
This method is called by defineClass that takes a CodeSource
arguement to build a proper ProtectionDomain for the class
being defined.
readFile
private byte[] readFile(java.lang.String name)
throws java.io.IOException
findResource
protected java.net.URL findResource(java.lang.String name)
- Description copied from class:
java.lang.ClassLoader
- Called whenever a resource is needed that could not be provided by
one of the parents of this classloader. It is called by
getResource() after parent.getResource()
couldn't provide the requested resource.
The default implementation always returns null. Subclasses should
override this method when they can provide a way to return a URL
to a named resource.
findResources
protected java.util.Enumeration findResources(java.lang.String name)
throws java.io.IOException
- Description copied from class:
java.lang.ClassLoader
- Called whenever all locations of a named resource are needed.
It is called by
getResources() after it has called
parent.getResources(). The results are combined by
the getResources() method.
The default implementation always returns an empty Enumeration.
Subclasses should override it when they can provide an Enumeration of
URLs (possibly just one element) to the named resource.
The first URL of the Enumeration should be the same as the one
returned by findResource.
JAVADOC |