#include <DistributedSystem.hpp>

Collaboration diagram for samchon::templates::distributed::DistributedSystem:

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Public Member Functions
virtual void	replyData (std::shared_ptr< protocol::Invoke > invoke) override

Public Member Functions inherited from samchon::templates::parallel::ParallelSystem
virtual	~ParallelSystem ()

virtual void	construct (std::shared_ptr< library::XML > xml) override
	Construct data of the Entity from an XML object. More...

auto	getPerformance () const -> double

void	setPerformance (double val)

void	enforcePerformance (double val)

virtual auto	toXML () const -> std::shared_ptr< library::XML > override
	Get an XML object represents the EntityGroup. More...

Public Member Functions inherited from samchon::templates::external::ExternalSystem
	ExternalSystem ()

	ExternalSystem (base::ExternalSystemArrayBase *systemArray)

	ExternalSystem (base::ExternalSystemArrayBase *systemArray, std::shared_ptr< protocol::ClientDriver > driver)

virtual	~ExternalSystem ()=default

virtual auto	key () const -> std::string

auto	getName () const -> std::string

void	close ()

virtual void	sendData (std::shared_ptr< protocol::Invoke > invoke) override

virtual auto	CHILD_TAG () const -> std::string override
	A tag name of children. More...

Public Member Functions inherited from samchon::protocol::EntityGroup< Container, T, Key >
auto	find (const typename child_type::key_type &key) -> typename container_type::iterator
	Get iterator to element. More...

auto	find (const typename child_type::key_type &key) const -> typename container_type::const_iterator
	Get const iterator to element. More...

auto	has (const typename child_type::key_type &key) const -> bool
	Indicates whether a container has an object having the specified identifier. More...

auto	count (const typename child_type::key_type &key) const -> size_t
	Count elements with a specific key. More...

auto	get (const typename child_type::key_type &key) -> typename container_type::value_type &
	Access the element by specified identifier(key). More...

auto	get (const typename child_type::key_type &key) const -> const typename container_type::value_type &
	Access the const element by specified identifier(key). More...

Public Member Functions inherited from samchon::protocol::IProtocol
virtual void	replyData (std::shared_ptr< Invoke >)=0

virtual void	sendData (std::shared_ptr< Invoke >)=0

Protected Member Functions
virtual auto	createChild (std::shared_ptr< library::XML >) -> external::ExternalSystemRole *override

Additional Inherited Members
Protected Attributes inherited from samchon::templates::external::ExternalSystem
std::string	name

Detailed Description

A driver for a distributed slave system.

The DistributedSystem is an abstract class represents a slave system in Distributed Processing System, connected with this master system. This DistributedSystem takes full charge of network communication with the remote, distributed slave system has connected.

This DistributedSystem has a performance index that indicates how much the slave system is fast. The performance index is referenced and revaluated whenever those methods are called:

Requesting a parallel process
- DistributedSystemArray.sendSegmentData
- DistributedSystemArray.sendPieceData
Requesting a distributed process: DistributedProcess.sendData

Note that, this DistributedSystem class derived from the ExternalSystem class. Thus, this DistributedSystem can also have children ExternalSystemRole objects exclusively. However, the children roles objects are different with the DistributedProcess. The domestic roles are belonged to only a specific DistributedSystem object. Otherwise, the DistributedProcess objects are belonged to a DistributedSystemArray object. Furthermore, the relationship between this DistributedSystem and DistributedProcess classes are M: N Associative.

Articles	DistributedProcess	ExternalSystemRole
Belonged to	DistributedSystemArray	DistributedSystem
Relationship	M: N Associative	1: N Composite
Ownership	References	Exclusive possession

Templates - Distributed System

Author: Jeongho Nam http://samchon.org

Definition at line 51 of file DistributedSystem.hpp.

Member Function Documentation

virtual auto samchon::templates::distributed::DistributedSystem::createChild ( std::shared_ptr< library::XML > ) -> external::ExternalSystemRole*

inlineoverrideprotectedvirtual

Factory method creating a child object.

In distributed module, the process class DistributedProcess is not belonged to a specific DistributedSystem object. It only belongs to a DistributedSystemArray object and has a M: N Associative Relationship between this DistributedSystem class.

By that reason, it's the normal case that the DistributedSystem object does not have any children ExternalSystemRole object. Thus, default createChild returns null.

However, if you want a DistributedSystem to have its own domestic ExternalSystemRole objects without reference to the DistributedProcess objects, it is possible. Creates and returns the domestic ExternalSystemRole object.

Parameters