CeresEngine::EntityManager::QueryExecutor< P > Class Template Reference

The query executor is responsible for iterating over entities and filtering them based on a given predicate. More...

#include <CeresEngine/Entity/EntityManager.hpp>

Public Types
using	Predicate = P
	The predicate type.

Public Member Functions
	QueryExecutor (Predicate &&predicate)
	Creates a new query executor instance.
Generator< const Entity >	operator() (const EntityManager &entityManager) const noexcept
	Executes the query.

Private Attributes
Predicate	mPredicate
	The predicate to filter selected entities.

Detailed Description

template<typename P>
class CeresEngine::EntityManager::QueryExecutor< P >

The query executor is responsible for iterating over entities and filtering them based on a given predicate.

Implementations can provide an optimized executor by specializing for predicate types.

Template Parameters

P	the predicate type

Member Typedef Documentation

Predicate

template<typename P >

using CeresEngine::EntityManager::QueryExecutor< P >::Predicate = P

The predicate type.

Constructor & Destructor Documentation

QueryExecutor()

template<typename P >

CeresEngine::EntityManager::QueryExecutor< P >::QueryExecutor ( Predicate &&  predicate )

inlineexplicit

Creates a new query executor instance.

Parameters

predicate

The predicate to filter selected entities

Member Function Documentation

operator()()

template<typename P >

Generator< const Entity > CeresEngine::EntityManager::QueryExecutor< P >::operator() ( const EntityManager &  entityManager ) const

noexcept

Executes the query.

Parameters

entityManager

The entity manager to execute the query on

Returns

The query result generator

Member Data Documentation

mPredicate

template<typename P >

Predicate CeresEngine::EntityManager::QueryExecutor< P >::mPredicate

private

The predicate to filter selected entities.

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The documentation for this class was generated from the following file:

• /Users/Rogiel/Developer/CeresEngine/Engine/Sources/CeresEngine/Entity/EntityManager.hpp