public final class UnoClassLoader extends URLClassLoader
This class loader is able to load all published URE classes, including the
classes representing the published URE UNO types. For consistency, it is
important that within each Java UNO environment there is one instance of this
class loader that is the defining class loader of all published URE classes
(and hence of all unpublished URE classes, too) and of all classes
representing UNO types (the published URE UNO types, any unpublished URE UNO
types, and any additional UNO types introduced by components; for the latter,
URLClassLoader.addURL(java.net.URL) may be necessary).
This is an internal, unstable class of the Uno Runtime Environment; it should not be used by client code.
| Constructor and Description |
|---|
UnoClassLoader(URL base,
URL[] classPath,
ClassLoader parent)
Instantiates the root UNO class loader.
|
| Modifier and Type | Method and Description |
|---|---|
void |
execute(URL jar,
String[] arguments)
Executes a UNO JAR.
|
ClassLoader |
getClassLoader(URL jar,
Attributes mainAttributes)
Obtains a class loader for a UNO JAR.
|
static Attributes |
getJarMainAttributes(URL jar)
Obtains the main section of the manifest of a JAR.
|
addURL, close, definePackage, findClass, findResource, findResources, getPermissions, getResourceAsStream, getURLs, newInstance, newInstancedefineClass, defineClassclearAssertionStatus, 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, setSignerspublic UnoClassLoader(URL base, URL[] classPath, ClassLoader parent) throws MalformedURLException
base - a base URL relative to which the URE JARs
(java_uno.jar, juh.jar, jurt.jar,
ridl.jar) can be found; must not be null.classPath - an array of URLs that form the class path of this class
loader; may be null, which is the same as an empty array.
The URLs are interpreted in the same way as the arguments of a URLClassLoader.parent - the parent class loader for delegation.MalformedURLException - if the given base URL is
malformed.public ClassLoader getClassLoader(URL jar, Attributes mainAttributes) throws MalformedURLException
jar - the URL of a UNO JAR; must not be null.mainAttributes - represents the main section of the manifest of the
given JAR jar; null if the given JAR does not
have a manifest. (This redundant parameter is there for performance
reasons, as typically the caller of this method already has this
information available.)null.MalformedURLException - if the given jar URL or any of
the UNO-Type-Path URLs specified in the given JAR are malformed.public void execute(URL jar, String[] arguments) throws IOException, ClassNotFoundException, NoSuchMethodException, InvocationTargetException
jar - the URL of a UNO JAR that specifies a Main-Class; must not be
null.arguments - any arguments passed to the main method of
the specified Main-Class of the given JAR jar; must not be
null.IOException - if there are any problems processing the given JAR
jar.ClassNotFoundException - if the given JAR jar does not
specify a Main-Class, or if the specified Main-Class cannot be found.NoSuchMethodException - if the specified Main-Class of the given
JAR jar does not have an appropriate main
method.InvocationTargetException - if an exception occurs while executing
the main method of the specified Main-Class of the given JAR
jar.public static Attributes getJarMainAttributes(URL jar) throws IOException
jar - the URL of a JAR; must not be null.jar, or null if the given JAR does
not have a manifest.IOException - if there are any problems processing the given JAR
jar.