Load Class : ClassLoader « Reflection « Java

Home
Java
1.2D Graphics GUI
2.3D
3.Advanced Graphics
4.Ant
5.Apache Common
6.Chart
7.Class
8.Collections Data Structure
9.Data Type
10.Database SQL JDBC
11.Design Pattern
12.Development Class
13.EJB3
14.Email
15.Event
16.File Input Output
17.Game
18.Generics
19.GWT
20.Hibernate
21.I18N
22.J2EE
23.J2ME
24.JavaFX
25.JDK 6
26.JDK 7
27.JNDI LDAP
28.JPA
29.JSP
30.JSTL
31.Language Basics
32.Network Protocol
33.PDF RTF
34.Reflection
35.Regular Expressions
36.Scripting
37.Security
38.Servlets
39.Spring
40.Swing Components
41.Swing JFC
42.SWT JFace Eclipse
43.Threads
44.Tiny Application
45.Velocity
46.Web Services SOA
47.XML
Java » Reflection » ClassLoader 




Load Class
     

// $Id: ReflectionHelper.java 16271 2009-04-07 20:20:12Z hardy.ferentschik $
/*
* JBoss, Home of Professional Open Source
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,  
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/


import java.beans.Introspector;
import java.lang.annotation.Annotation;
import java.lang.reflect.AccessibleObject;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Member;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.lang.reflect.WildcardType;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import java.util.Map;


/**
 * Some reflection utility methods.
 *
 @author Hardy Ferentschik
 */
public class ReflectionHelper {

  public static Class<?> loadClass(String name, Class<?> callerthrows ClassNotFoundException {
    try {
      //try context classloader, if fails try caller classloader
      ClassLoader loader = Thread.currentThread().getContextClassLoader();
      if loader != null ) {
        return loader.loadClassname );
      }
    }
    catch ClassNotFoundException e ) {
      //trying caller classloader
      if caller == null ) {
        throw e;
      }
    }
    return Class.forNamename, true, caller.getClassLoader() );
  }
}

   
    
    
    
    
  














Related examples in the same category
1.Determining from Where a Class Was Loaded
2.Loading a Class That Is Not on the Classpath
3.Dynamically Reloading a Modified Class
4.Get the path from where a class is loaded
5.Using the forName() method
6.Unqualified names
7.Return the context classloader.
8.Jar Class Loader
9.Zip Class Loader
10.Load class from Thread's ContextClassLoader, classloader of derived class or the system ClassLoader
11.Various Class Loader utilities
12.Load classes
13.Class Finder
14.Class For Name
15.Context ClassLoader
16.Analyze ClassLoader hierarchy for any given object or class loader
17.A class loader which loads classes using a searchlist of other classloaders
18.Equivalently to invoking Thread.currentThread().getContextClassLoader().loadClass(className); but it supports primitive types and array classes of object types or primitive types.
19.A class to simplify access to resources through the classloader
20.Get a compatible constructor for the given value type
21.Force the given class to be loaded fully.
22.does Class Exist
23.Java interpreter replacement
24.Utility to essentially do Class forName and allow configurable Classloaders.
25.Attempts to list all the classes in the specified package as determined by the context class loader...
26.Resolve class and load class
java2s.com  | Contact Us | Privacy Policy
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.