java.lang.Object
- org.springframework.core.io.support.SpringFactoriesLoader

```
public final class SpringFactoriesLoader
extends Object
```
General purpose factory loading mechanism for internal use within the framework.
SpringFactoriesLoaderloads and instantiates factories of a given type from "META-INF/spring.factories" files which may be present in multiple JAR files in the classpath. The spring.factories file must be in Properties format, where the key is the fully qualified name of the interface or abstract class, and the value is a comma-separated list of implementation class names. For example:
```
example.MyService=example.MyServiceImpl1,example.MyServiceImpl2
```
where example.MyService is the name of the interface, and MyServiceImpl1 and MyServiceImpl2 are two implementations.
Since:
3.2
Author:
Arjen Poutsma, Juergen Hoeller, Sam Brannen

Field Summary
Fields
Modifier and Type Field Description
static String FACTORIES_RESOURCE_LOCATION
The location to look for factories.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static <T> List<T>`	`loadFactories(Class<T> factoryType, ClassLoader classLoader)`	Load and instantiate the factory implementations of the given type from "META-INF/spring.factories", using the given class loader.
`static List<String>`	`loadFactoryNames(Class<?> factoryType, ClassLoader classLoader)`	Load the fully qualified class names of factory implementations of the given type from "META-INF/spring.factories", using the given class loader.

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

- Field Detail
  - FACTORIES_RESOURCE_LOCATION
```
public static final String FACTORIES_RESOURCE_LOCATION
```
    The location to look for factories.
    Can be present in multiple JAR files.
    See Also:
    Constant Field Values
- Method Detail
  - loadFactories
```
public static <T> List<T> loadFactories(Class<T> factoryType,
                                        @Nullable
                                        ClassLoader classLoader)
```
    Load and instantiate the factory implementations of the given type from "META-INF/spring.factories", using the given class loader.
    The returned factories are sorted through AnnotationAwareOrderComparator.
    If a custom instantiation strategy is required, use loadFactoryNames(java.lang.Class<?>, java.lang.ClassLoader) to obtain all registered factory names.
    Parameters:
    factoryType - the interface or abstract class representing the factory
    classLoader - the ClassLoader to use for loading (can be null to use the default)
    Throws:
    IllegalArgumentException - if any factory implementation class cannot be loaded or if an error occurs while instantiating any factory
    See Also:
    loadFactoryNames(java.lang.Class<?>, java.lang.ClassLoader)
  - loadFactoryNames
```
public static List<String> loadFactoryNames(Class<?> factoryType,
                                            @Nullable
                                            ClassLoader classLoader)
```
    Load the fully qualified class names of factory implementations of the given type from "META-INF/spring.factories", using the given class loader.
    Parameters:
    factoryType - the interface or abstract class representing the factory
    classLoader - the ClassLoader to use for loading resources; can be null to use the default
    Throws:
    IllegalArgumentException - if an error occurs while loading factory names
    See Also:
    loadFactories(java.lang.Class<T>, java.lang.ClassLoader)

Class SpringFactoriesLoader

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

FACTORIES_RESOURCE_LOCATION

Method Detail

loadFactories

loadFactoryNames