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50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
#pragma once
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#include <iostream>
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#include "mixins/LazyLinkMixin.h"
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#include <memory>
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#include "links/OneToManyLink.h"
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#include "links/OneToOneLink.h"
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#include "Logger.h"
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class HierarchicalLinkMixin : public LazyLinkMixin<OneToOneLink<ILinkMixin>> {
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public:
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HierarchicalLinkMixin() {}
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~HierarchicalLinkMixin() override {
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Logger::get("Mixin").dbg("--- Destructor called for: HierarchicalLinkMixin");
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}
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void linkChild(const MixinPtr& child) override {
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hierarchicalInit(child);
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LazyLinkMixin<OneToOneLink<ILinkMixin>>::linkChild(child);
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}
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protected:
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void hierarchicalInit(const MixinPtr& child) {
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Logger::get("Mixin").dbg("--- hierarchicalInit called");
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if (this->link_ && !this->link_->getChildren().empty())
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return; // already have children, do nothing
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/* 1. Have no link_ —
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* 2. Has OneToOne with parent or not
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* 3. Has OneToOne with child
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*/
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LinkPtr newLink;
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if (typeid(*child) == typeid(*this)) {
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Logger::get("Mixin").dbg("--- Mutate to OneToMany");
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newLink = std::make_shared<OneToManyLink<ILinkMixin>>(this->getNode());
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} else {
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Logger::get("Mixin").dbg("--- Mutate to OneToOne");
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newLink = std::make_shared<OneToOneLink<ILinkMixin>>(this->getNode());
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}
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if (newLink && this->link_)
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newLink->setParent(this->link_->getParent());
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this->link_ = newLink;
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}
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};
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