CompositeServiceLoader (central-repository 4.0.0-RC API)

java.lang.Object
- ej.service.loader.SimpleServiceLoader
- - ej.service.loader.CompositeServiceLoader

All Implemented Interfaces:

ServiceLoader

Direct Known Subclasses:

ServiceLoaderKF
```
public class CompositeServiceLoader
extends SimpleServiceLoader
```
A composite service loader contains a list a service loaders. It searches the requested services in its children sequentially respecting the order they are added.

Field Summary
- Fields inherited from class ej.service.loader.SimpleServiceLoader
  services

Constructor Summary

Constructors
Constructor Description

CompositeServiceLoader()
Creates a new empty composite service loader.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addServiceLoader(ServiceLoader serviceLoader)`	Adds a service loader at the end of the list a service loaders used by this composite service loader.
`<T> T`	`getService(Class<T> service)`	Gets the instance of the given service.

Methods inherited from class ej.service.loader.SimpleServiceLoader
checkServicePermission, createAlternativeImplementation, putService

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

- Constructor Detail
  - CompositeServiceLoader
```
public CompositeServiceLoader()
```
    Creates a new empty composite service loader.
- Method Detail
  - addServiceLoader
```
public void addServiceLoader(ServiceLoader serviceLoader)
```
    Adds a service loader at the end of the list a service loaders used by this composite service loader.
    
    Parameters:
    
    serviceLoader - the service loader to add.
    
    Throws:
    
    NullPointerException - if the given service loader is null.
  - getService
```
@Nullable
public <T> T getService(Class<T> service)
```
    Description copied from interface: ServiceLoader
    
    Gets the instance of the given service.
    If there is already an instance in cache, it is returned otherwise a new one is created.
    May return null if the service is not defined.
    
    Specified by:
    
    getService in interface ServiceLoader
    
    Overrides:
    
    getService in class SimpleServiceLoader
    
    Type Parameters:
    
    T - the service type.
    
    Parameters:
    
    service - the service.
    
    Returns:
    
    the instance of the given service.