NamedSPILoader (Jackrabbit Oak 1.71-SNAPSHOT API)

java.lang.Object
- org.apache.lucene.util.NamedSPILoader<S>

All Implemented Interfaces:

Iterable<S>
```
public final class NamedSPILoader<S extends NamedSPILoader.NamedSPI>
extends Object
implements Iterable<S>
```
Helper class for loading named SPIs from classpath (e.g. Codec, PostingsFormat).

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static interface NamedSPILoader.NamedSPI
Interface to support lookup(String) by name.

Constructor Summary

Constructors
Constructor Description

NamedSPILoader(Class<S> clazz)

NamedSPILoader(Class<S> clazz, ClassLoader classloader)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Set<String>`	`availableServices()`
`static void`	`checkServiceName(String name)`	Validates that a service name meets the requirements of `NamedSPILoader.NamedSPI`
`Iterator<S>`	`iterator()`
`S`	`lookup(String name)`
`void`	`reload(ClassLoader classloader)`	Reloads the internal SPI list from the given `ClassLoader`.

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

Methods inherited from interface java.lang.Iterable
forEach, spliterator

- Constructor Detail
  - NamedSPILoader
```
public NamedSPILoader(Class<S> clazz)
```
  - NamedSPILoader
```
public NamedSPILoader(Class<S> clazz,
                      ClassLoader classloader)
```
- Method Detail
  - reload
```
public void reload(ClassLoader classloader)
```
    Reloads the internal SPI list from the given ClassLoader. Changes to the service list are visible after the method ends, all iterators (iterator(),...) stay consistent.
    NOTE: Only new service providers are added, existing ones are never removed or replaced.
    This method is expensive and should only be called for discovery of new service providers on the given classpath/classloader!
  - checkServiceName
```
public static void checkServiceName(String name)
```
    Validates that a service name meets the requirements of NamedSPILoader.NamedSPI
  - lookup
```
public S lookup(String name)
```
  - availableServices
```
public Set<String> availableServices()
```
  - iterator
```
public Iterator<S> iterator()
```
    Specified by:
    
    iterator in interface Iterable<S extends NamedSPILoader.NamedSPI>