Package rekit.util

Class ReflectUtils

java.lang.Object

rekit.util.ReflectUtils

public final class ReflectUtils
extends Object

This class contains several methods for using Java Reflections in a proper way.

Author:

Dominik Fuchss

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static @interface	ReflectUtils.LoadMe	This annotation has to be applied to Classes which shall be loaded as implementation of a specific class and shall be instantiated. If a class wants to be loaded, the class needs a default constructor

Method Summary

Modifier and Type	Method	Description
static <T> Set<Class<? extends T>>	getClasses(String searchPath, ClassLoader loader, Class<T> type)	Get all implementations of a class by search path (-> classpath) .
static Set<Class<?>>	getClassesAnnotated(String searchPath, Class<? extends Annotation> annotation)	Get all classes which are annotated with ...
static <T> Set<T>	loadInstances(String searchPath, ClassLoader loader, Class<T> type)	Load all implementations that shall be loaded (see ReflectUtils.LoadMe) of a class by search path (-> classpath).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

loadInstances

public static <T> Set<T> loadInstances(String searchPath,
 ClassLoader loader,
 Class<T> type)

Load all implementations that shall be loaded (see ReflectUtils.LoadMe) of a class by search path (-> classpath).
If a class wants to be loaded, the class needs a default constructor

Type Parameters:

T - the class-type

Parameters:

searchPath - the search path (e.g. java.lang)

loader - the class loader

type - the class

Returns:

a set of instances of the found classes

getClasses

public static <T> Set<Class<? extends T>> getClasses(String searchPath,
 ClassLoader loader,
 Class<T> type)

Get all implementations of a class by search path (-> classpath) .

Type Parameters:

T - the class-type

Parameters:

searchPath - the search path (e.g. java.lang)

loader - the class loader

type - the class

Returns:

a set of the found classes

getClassesAnnotated

public static Set<Class<?>> getClassesAnnotated(String searchPath,
 Class<? extends Annotation> annotation)

Get all classes which are annotated with ... by search path (-> classpath).
No subtypes will be returned except if they are annotated too.

Parameters:

searchPath - the search path (e.g. java.lang)

annotation - the class annotation

Returns:

a set of the found classes