This class provides utility methods for Observable instance for Feature. More...

#include <luciad/models/features/ObservableFeatureUtil.h>

Public Member Functions
	ObservableFeatureUtil ()=delete

Static Public Member Functions
static std::shared_ptr< Observable< std::shared_ptr< Geometry > > >	deriveGeometry (const std::shared_ptr< Observable< Feature > > &observableFeature, const std::shared_ptr< IFeatureGeometryProvider > &geometryProvider)
	Derives an `Observable` `Geometry` from the given observable feature. More...

Detailed Description

This class provides utility methods for Observable instance for Feature.

Constructor & Destructor Documentation

luciad::ObservableFeatureUtil::ObservableFeatureUtil ( )

delete

static std::shared_ptr< Observable< std::shared_ptr< Geometry > > > luciad::ObservableFeatureUtil::deriveGeometry	(	const std::shared_ptr< Observable< Feature > > &	observableFeature,
		const std::shared_ptr< IFeatureGeometryProvider > &	geometryProvider
	)

static

Derives an Observable Geometry from the given observable feature.

This observable geometry will be updated when the given observable feature is updated.

Notes:

When this method can not derive a geometry instance using the given IFeatureGeometryProvider, an Observable instance will be created with a nullptr value.
A nullptr value can also be set on an existing Observable Geometry instance after Observable Feature changes, and no geometry instance can be derived.
Observable::setValue will throw an exception for derived instances.

Parameters

observableFeature	an observable feature from which to derive a geometry. Cannot be `nullptr`.
geometryProvider	the geometry provider used to extract a geometry from the feature. This provider is used initially, and when the given ObservableFeature changes. Cannot be `nullptr`.

Exceptions

NullArgumentException when passing nullptr values.