SPIClassIterator (Jackrabbit Oak 1.78.0 API)

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

All Implemented Interfaces:

Iterator<Class<? extends S>>
```
public final class SPIClassIterator<S>
extends Object
implements Iterator<Class<? extends S>>
```
Helper class for loading SPI classes from classpath (META-INF files). This is a light impl of ServiceLoader but is guaranteed to be bug-free regarding classpath order and does not instantiate or initialize the classes found.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static <S> SPIClassIterator<S>`	`get(Class<S> clazz)`
`static <S> SPIClassIterator<S>`	`get(Class<S> clazz, ClassLoader loader)`
`boolean`	`hasNext()`
`static boolean`	`isParentClassLoader(ClassLoader parent, ClassLoader child)`	Utility method to check if some class loader is a (grand-)parent of or the same as another one.
`Class<? extends S>`	`next()`
`void`	`remove()`

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

Methods inherited from interface java.util.Iterator
forEachRemaining

Method Detail

get

public static <S> SPIClassIterator<S> get(Class<S> clazz)

get

public static <S> SPIClassIterator<S> get(Class<S> clazz,
                                          ClassLoader loader)

isParentClassLoader
```
public static boolean isParentClassLoader(ClassLoader parent,
                                          ClassLoader child)
```
Utility method to check if some class loader is a (grand-)parent of or the same as another one. This means the child will be able to load all classes from the parent, too.

hasNext
```
public boolean hasNext()
```
Specified by:

hasNext in interface Iterator<S>

next
```
public Class<? extends S> next()
```
Specified by:

next in interface Iterator<S>

remove
```
public void remove()
```
Specified by:

remove in interface Iterator<S>