ExtensionLoader (Apache OpenNLP Tools 2.1.1 API)

java.lang.Object
- opennlp.tools.util.ext.ExtensionLoader

```
@Internal
public class ExtensionLoader
extends Object
```
The ExtensionLoader is responsible to load extensions to the OpenNLP library.
Note: Do not use this class, internal use only!

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static <T> T`	`instantiateExtension(Class<T> clazz, String extensionClassName)`	Instantiates a user provided extension to OpenNLP.

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - instantiateExtension
```
public static <T> T instantiateExtension(Class<T> clazz,
                                         String extensionClassName)
```
    Instantiates a user provided extension to OpenNLP.
    The extension is loaded from the class path.
    Initially, the load is conducted using the public no-arg constructor. If no such constructor is not found, it is checked if the class follows the Singleton pattern: a static field named INSTANCE that returns an object of the type ExtensionLoader.
    
    Parameters:
    
    clazz - A reference to Class.
    
    extensionClassName - The (fully-qualified) name of the class by which the extension shall be loaded.
    
    Returns:
    
    the instance of the extension class
    
    Throws:
    
    ExtensionNotLoadedException - Thrown if the load operation failed.