DeviceFactoryHelper (diozero - Core 1.3.3 API)

java.lang.Object
- com.diozero.sbc.DeviceFactoryHelper

```
public class DeviceFactoryHelper
extends Object
```
Helper class for automatically detecting the native device factory that will be used for provisioning I/O devices. Uses the Java ServiceLoader to detect NativeDeviceFactoryInterface implementations that are available on the class-path as defined in META-INF/services/com.diozero.internal.provider.NativeDeviceFactoryInterface. The first entry is used if there are multiple implementations present on the class-path. Alternatively you can specify the class to use via the command line or environment property diozero.devicefactory. The built-in device factory is used if the above logic fails to instantiate a device factory implementation.

Field Summary

Fields
Modifier and Type Field Description

static String DEVICE_FACTORY_PROP

Constructor Summary

Constructors
Constructor Description

DeviceFactoryHelper()

Method Summary

All Methods Static Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`static void`	`close()`	Close the default native device factory.
`static NativeDeviceFactoryInterface`	`getNativeDeviceFactory()`	Auto-detect the native device factory class to be used for provisioning I/O devices in this lookup order: Command line `property / environment` variable `diozero.devicefactory` Java `ServiceLoader` using the class `com.diozero.internal.provider.NativeDeviceFactoryInterface` The `built-in device factory`
`static void`	`registerForShutdown(AutoCloseable... closeableArray)`	Deprecated. Use `Diozero.registerForShutdown(java.lang.AutoCloseable...)` instead
`static void`	`shutdown()`	Deprecated. Use `Diozero.shutdown` instead

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

- Field Detail
  - DEVICE_FACTORY_PROP
```
public static final String DEVICE_FACTORY_PROP
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - DeviceFactoryHelper
```
public DeviceFactoryHelper()
```
- Method Detail
  - getNativeDeviceFactory
```
public static NativeDeviceFactoryInterface getNativeDeviceFactory()
```
    Auto-detect the native device factory class to be used for provisioning I/O devices in this lookup order:
    
    Command line property / environment variable diozero.devicefactory
    
    Java ServiceLoader using the class com.diozero.internal.provider.NativeDeviceFactoryInterface
    
    The built-in device factory
    Returns:
    
    the native device factory instance to use for provisioning I/O devices.
  - registerForShutdown
```
@Deprecated
public static void registerForShutdown(AutoCloseable... closeableArray)
```
    Deprecated.
    Use Diozero.registerForShutdown(java.lang.AutoCloseable...) instead
    
    Register an object to be shutdown in the case of abnormal shutdown
    
    Parameters:
    
    closeableArray - Array of closeable objects to close on shutdown
  - shutdown
```
@Deprecated
public static void shutdown()
```
    Deprecated.
    Use Diozero.shutdown instead
    
    Shutdown diozero.
  - close
```
public static void close()
```
    Close the default native device factory.