luciad::IFeatureQueryCallback Class Reference

A callback class that is called with the results of a query. More...

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

Public Member Functions
virtual	~IFeatureQueryCallback ()=default
virtual bool	handleFeature (Feature feature)=0
	Implement this method to handle a feature that is returned by the IFeatureModel::query method. More...

Static Public Member Functions
static std::shared_ptr< IFeatureQueryCallback >	create (std::function< bool(Feature)> function)
	Creates a default IFeatureQueryCallback instance that delegates the IFeatureQueryCallback::handleFeature to the given function. More...

Detailed Description

A callback class that is called with the results of a query.

See IFeatureModel::query.

Constructor & Destructor Documentation

~IFeatureQueryCallback()

virtual luciad::IFeatureQueryCallback::~IFeatureQueryCallback ( )

virtualdefault

Member Function Documentation

create()

static std::shared_ptr< IFeatureQueryCallback > luciad::IFeatureQueryCallback::create ( std::function< bool(Feature)>  function )

static

Creates a default IFeatureQueryCallback instance that delegates the IFeatureQueryCallback::handleFeature to the given function.

This is a convenience method that allows to reduce boiler plate code using lambdas.

Parameters

function

the function that is called by IFeatureQueryCallback::handleFeature

Returns

an IFeatureQueryCallback instance based on the given function.

handleFeature()

virtual bool luciad::IFeatureQueryCallback::handleFeature ( Feature  feature )

pure virtual

Implement this method to handle a feature that is returned by the IFeatureModel::query method.

Parameters

feature

the feature to handle.

Returns

false to indicate that the query can stop.