org.apache.uima.internal.util
Class UIMAClassLoader

java.lang.Object
  extended by java.lang.ClassLoader
      extended by java.security.SecureClassLoader
          extended by java.net.URLClassLoader
              extended by org.apache.uima.internal.util.UIMAClassLoader

public class UIMAClassLoader
extends java.net.URLClassLoader

UIMAClassLoader is used as extension ClassLoader for UIMA to load additional components like annotators and resources. The classpath of the classloader is specified as string. The strategy for this ClassLoader tries to load the class itself before the classloading is delegated to the application class loader.


Constructor Summary
UIMAClassLoader(java.lang.String classpath)
          Creates a new UIMAClassLoader based on a classpath string
UIMAClassLoader(java.lang.String classpath, java.lang.ClassLoader parent)
          Creates a new UIMAClassLoader based on a classpath string.
UIMAClassLoader(java.net.URL[] classpath)
          Creates a new UIMAClassLoader based on a classpath URL's
UIMAClassLoader(java.net.URL[] classpath, java.lang.ClassLoader parent)
          Creates a new UIMAClassLoader based on a classpath URL's.
 
Method Summary
protected  java.lang.Class<?> loadClass(java.lang.String name, boolean resolve)
           
static java.net.URLClassLoader newInstance(java.net.URL[] urls)
          Do not use this factory method - throws unsupportedOperationException
static java.net.URLClassLoader newInstance(java.net.URL[] urls, java.lang.ClassLoader parent)
          Do not use this factory method - throws unsupportedOperationException
static java.net.URL[] transformClasspath(java.lang.String classpath)
          Transforms the string classpath to and URL array based classpath.
 
Methods inherited from class java.net.URLClassLoader
addURL, definePackage, findClass, findResource, findResources, getPermissions, getURLs
 
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, getPackage, getPackages, getParent, getResource, getResourceAsStream, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, loadClass, resolveClass, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

UIMAClassLoader

public UIMAClassLoader(java.lang.String classpath)
                throws java.net.MalformedURLException
Creates a new UIMAClassLoader based on a classpath string

Parameters:
classpath - a classpath string
Throws:
java.net.MalformedURLException - if a malformed URL has occurred in the classpath string.

UIMAClassLoader

public UIMAClassLoader(java.net.URL[] classpath)
Creates a new UIMAClassLoader based on a classpath URL's

Parameters:
classpath - an array of wellformed classpath URL's

UIMAClassLoader

public UIMAClassLoader(java.net.URL[] classpath,
                       java.lang.ClassLoader parent)
Creates a new UIMAClassLoader based on a classpath URL's. Also a parent ClassLoader can be specified.

Parameters:
classpath - an array of wellformed classpath URL's
parent - specify the parent of the classloader

UIMAClassLoader

public UIMAClassLoader(java.lang.String classpath,
                       java.lang.ClassLoader parent)
                throws java.net.MalformedURLException
Creates a new UIMAClassLoader based on a classpath string. Also a parent ClassLoader can be specified.

Parameters:
classpath - a classpath string
parent - specify the parent of the classloader
Throws:
java.net.MalformedURLException - if a malformed URL has occurred in the classpath string.
Method Detail

transformClasspath

public static java.net.URL[] transformClasspath(java.lang.String classpath)
                                         throws java.net.MalformedURLException
Transforms the string classpath to and URL array based classpath. The classpath string must be separated with the filesystem path separator.

Parameters:
classpath - a classpath string
Returns:
URL[] array of wellformed URL's
Throws:
java.net.MalformedURLException - if a malformed URL has occurred in the classpath string.

newInstance

public static java.net.URLClassLoader newInstance(java.net.URL[] urls)
Do not use this factory method - throws unsupportedOperationException


newInstance

public static java.net.URLClassLoader newInstance(java.net.URL[] urls,
                                                  java.lang.ClassLoader parent)
Do not use this factory method - throws unsupportedOperationException


loadClass

protected java.lang.Class<?> loadClass(java.lang.String name,
                                       boolean resolve)
                                throws java.lang.ClassNotFoundException
Overrides:
loadClass in class java.lang.ClassLoader
Throws:
java.lang.ClassNotFoundException


Copyright © 2010 The Apache Software Foundation. All Rights Reserved.