org.springframework.core.io.support

Class SpringFactoriesLoader

java.lang.Object

org.springframework.core.io.support.SpringFactoriesLoader

public abstract class SpringFactoriesLoader
extends Object

General purpose factory loading mechanism for internal use within the framework.

The SpringFactoriesLoader loads and instantiates factories of a given type from "META-INF/spring.factories" files. The file should be in Properties format, where the key is the fully qualified interface or abstract class name, and the value is a comma-separated list of implementation class names. For instance:

example.MyService=example.MyServiceImpl1,example.MyServiceImpl2

where MyService is the name of the interface, and MyServiceImpl1 and MyServiceImpl2 are the two implementations.

Since:

3.2

Author:

Arjen Poutsma, Juergen Hoeller

Constructor Summary

Constructors

Constructor and Description
SpringFactoriesLoader()

Method Summary

Methods

Modifier and Type	Method and Description
static <T> List<T>	loadFactories(Class<T> factoryClass, ClassLoader classLoader) Load the factory implementations of the given type from the default location, using the given class loader.
static List<String>	loadFactoryNames(Class<?> factoryClass, ClassLoader classLoader)

Methods inherited from class java.lang.Object

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

Constructor Detail

SpringFactoriesLoader

public SpringFactoriesLoader()

Method Detail

loadFactories

public static <T> List<T> loadFactories(Class<T> factoryClass,
                        ClassLoader classLoader)

Load the factory implementations of the given type from the default location, using the given class loader.

The returned factories are ordered in accordance with the OrderComparator.

Parameters:

factoryClass - the interface or abstract class representing the factory

classLoader - the ClassLoader to use for loading (can be null to use the default)

loadFactoryNames

public static List<String> loadFactoryNames(Class<?> factoryClass,
                            ClassLoader classLoader)