com.hp.device

Interface FacetProvider

All Known Subinterfaces:

DeviceHandler, DeviceInfo, MutableDeviceInfo

All Known Implementing Classes:

AbstractDeviceInfo, DefaultDeviceHandler, DefaultDeviceInfo, DeviceInfoAdapter, KeyDeviceInfo

public interface FacetProvider

Provides Facet implementations.

Author:

Simon Hunt

Method Summary

Modifier and Type	Method and Description
<T extends Facet> T	getFacet(Class<T> facetClass) Returns an implementation of the specified facet class, or null if that facet is not supported by this provider.
Set<Class<? extends Facet>>	getFacetClasses() Returns the set of facet classes for the facets that this provider provides.
Set<String>	getFacetClassNames() Returns the set of facet class names for the facets that this provider provides.
boolean	isSupported(Class<? extends Facet> facetClass) Returns true if the specified facet class is supported by this provider.

Method Detail

getFacetClasses

Set<Class<? extends Facet>> getFacetClasses()

Returns the set of facet classes for the facets that this provider provides.

Returns:

the set of facet classes

getFacetClassNames

Set<String> getFacetClassNames()

Returns the set of facet class names for the facets that this provider provides. Implementations should iterate across their implementation of getFacetClasses() and populate the returned set with the result of calling Class.getName() on each class.

Returns:

the set of facet class names

isSupported

boolean isSupported(Class<? extends Facet> facetClass)

Returns true if the specified facet class is supported by this provider. The following implementation (or its equivalent) should hold true:

 public boolean isSupported(Class<? extends Facet> facetClass) {
     return getFacetClasses()().contains(facetClass);
 }
 

Parameters:

facetClass - a facet class

Returns:

true if this provider supports that class of facet

getFacet

<T extends Facet> T getFacet(Class<T> facetClass)

Returns an implementation of the specified facet class, or null if that facet is not supported by this provider.

Type Parameters:

T - Facet type

Parameters:

facetClass - the class of the required facet

Returns:

a facet implementation