Java Class New Instance newInstance(Class interfaceDefinition, String className, ClassLoader classLoader)

License

Declaration

@SuppressWarnings("unchecked")
private static <I> I newInstance(Class<I> interfaceDefinition, String className, ClassLoader classLoader) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

public class Main {

    @SuppressWarnings("unchecked")
    private static <I> I newInstance(Class<I> interfaceDefinition, String className, ClassLoader classLoader) {
        try {//w  ww.  j ava  2 s.  c  o m
            Class<I> spiClass;

            if (classLoader == null) {
                spiClass = (Class<I>) Class.forName(className);
            } else {
                spiClass = (Class<I>) classLoader.loadClass(className);
            }

            return spiClass.newInstance();
        } catch (ClassNotFoundException x) {
            throw new java.lang.RuntimeException("Provider " + className + " not found", x);
        } catch (Exception ex) {
            throw new java.lang.RuntimeException("Provider " + className + " could not be instantiated: " + ex, ex);
        }
    }
}

Related

1. newInstance(Class cls)
2. newInstance(Class cls, Map, Constructor> cache)
3. newInstance(Class componentType, int... dimensions)
4. newInstance(Class entity)
5. newInstance(Class theClass, Class expected)
6. newInstance(Class aClass, Object... args)
7. newInstance(Class arrayComponentClass, T value)
8. newInstance(Class beanClass)
9. newInstance(Class c)