Package opennlp.tools.util.ext

Class ExtensionLoader

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

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 Details

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<T>.

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.