composite_pattern

namespace composite_pattern

Namespace for the Composite pattern.

class Component

#include <composite.hpp>

The Component interface declares common operations for both simple and complex objects.

Subclassed by composite_pattern::Composite, composite_pattern::Leaf

Public Functions

virtual void operation() const = 0

Performs the operation for the component.

inline virtual void add(std::shared_ptr<Component>)

Adds a child component (only meaningful for Composite).

inline virtual void remove(std::shared_ptr<Component>)

Removes a child component (only meaningful for Composite).

inline virtual bool isComposite() const

Checks if the component is a composite.

Returns:

True if composite, otherwise false.

class Composite : public composite_pattern::Component

#include <composite.hpp>

The Composite class represents the complex components that may have children.

A Composite object can have both Leaf and other Composite objects as children.

Public Functions

inline virtual void add(std::shared_ptr<Component> component) override

Adds a child component to the composite.

Parameters:

component – The child component to add.

inline virtual void remove(std::shared_ptr<Component> component) override

Removes a child component from the composite.

Parameters:

component – The child component to remove.

inline virtual bool isComposite() const override

Checks if the component is a composite.

Returns:

True, as this is a Composite.

inline virtual void operation() const override

Performs the operation for the composite and delegates to child components.

class Leaf : public composite_pattern::Component

#include <composite.hpp>

The Leaf class represents the end objects of a composition.

A Leaf cannot have any children. It implements the base Component interface.

Public Functions

inline explicit Leaf(const std::string &name)

Constructs a Leaf with a given name.

Parameters:

name – The name of the leaf.

inline virtual void operation() const override

Performs the operation specific to the Leaf.