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177
nodes/util/ntxmaptor.h
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177
nodes/util/ntxmaptor.h
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#ifndef NTX_MAPTOR_H
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#define NTX_MAPTOR_H
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#include "ntxmapindex.h"
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#include <vector>
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#include <string>
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#include <optional>
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#include <stdexcept>
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#include <memory>
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#include <algorithm>
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#include <utility>
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namespace ntx
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{
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/**
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* @brief Generischer Maptor (Vector + Map), adaptiert an das NtxIPayload-Interface.
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*
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* Entfernt die STL-Container-Schnittstelle (push_back, begin, end, etc.) zugunsten
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* der expliziten Payload-Methodik (setProperty, getProperty, etc.).
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*/
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template <typename T>
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class NtxMaptor
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{
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public:
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using NtxMapIndexPtr = std::shared_ptr<NtxMapIndex>;
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// Zugriff auf Iteratoren für Range-Based Loops (via valuesBegin/End)
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using iterator = typename std::vector<T>::iterator;
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using const_iterator = typename std::vector<T>::const_iterator;
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// --- Konstruktoren ---
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NtxMaptor()
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: m_index(std::make_shared<NtxMapIndex>())
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{
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}
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explicit NtxMaptor(const NtxMapIndexPtr& index)
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{
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if (!index)
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throw std::invalid_argument("NtxMaptor: index must not be null");
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m_index = index;
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}
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NtxMaptor(const NtxMaptor&) = default;
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NtxMaptor& operator=(const NtxMaptor&) = default;
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NtxMaptor(NtxMaptor&&) noexcept = default;
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NtxMaptor& operator=(NtxMaptor&&) noexcept = default;
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virtual ~NtxMaptor() = default;
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// =========================================================================
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// NtxIPayload Interface-Adaption
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// =========================================================================
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// --- Kapazität ---
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[[nodiscard]] size_t getPropertyCount() const noexcept
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{
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return m_data.size();
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}
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void clearProperties()
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{
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m_data.clear();
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m_index->clear();
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}
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// --- Key-basierter Zugriff ---
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bool hasProperty(const std::string& key) const
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{
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return m_index->containsKey(key);
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}
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/**
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* @brief Setzt oder fügt einen Wert hinzu (Upsert).
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* Wenn der Key existiert, wird der Wert überschrieben.
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* Wenn nicht, wird er angehängt.
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*/
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void setProperty(const std::string& key, const T& value)
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{
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auto idx = m_index->indexOf(key);
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if (idx)
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{
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m_data[*idx] = value;
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}
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else
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{
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m_index->addKey(key, m_data.size());
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m_data.push_back(value);
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}
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}
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// "Deducing this" für const/non-const getProperty(key)
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template <typename Self>
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auto&& getProperty(this Self&& self, const std::string& key)
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{
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auto idx = self.m_index->indexOf(key);
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if (!idx)
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throw std::out_of_range("NtxMaptor: Key not found: " + key);
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return std::forward<Self>(self).m_data[*idx];
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}
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void removeProperty(const std::string& key)
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{
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auto idx = m_index->indexOf(key);
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if (!idx)
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return;
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size_t index = *idx;
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// Index entfernen und nachfolgende Indizes im Index-Objekt korrigieren
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m_index->removeAt(index);
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// Daten aus Vektor entfernen
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m_data.erase(m_data.begin() + static_cast<std::ptrdiff_t>(index));
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}
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// --- Index-basierter Zugriff ---
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bool hasProperty(size_t index) const
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{
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return index < m_data.size();
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}
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void setProperty(size_t index, const T& value)
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{
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if (index >= m_data.size())
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{
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throw std::out_of_range("NtxMaptor: Index out of range");
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}
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m_data[index] = value;
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}
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// "Deducing this" für const/non-const getProperty(index)
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template <typename Self>
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auto&& getProperty(this Self&& self, size_t index)
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{
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return std::forward<Self>(self).m_data.at(index);
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}
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// --- Iteratoren (NtxIPayload Style) ---
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// Erlaubt das Iterieren über die internen Werte
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template <typename Self>
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auto begin(this Self&& self) { return std::forward<Self>(self).m_data.begin(); }
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template <typename Self>
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auto end(this Self&& self) { return std::forward<Self>(self).m_data.end(); }
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// =========================================================================
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// Erweiterte Index-Funktionen (Alias, Replace)
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// Diese bleiben erhalten, da sie spezifische NtxMapIndex Features sind
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// =========================================================================
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bool replaceKey(const std::string& oldKey, const std::string& newKey)
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{
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return m_index->replaceKey(oldKey, newKey);
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}
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bool addAlias(const std::string& key, const std::string& alias)
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{
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return m_index->addAlias(key, alias);
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}
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private:
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std::vector<T> m_data;
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NtxMapIndexPtr m_index;
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};
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} // namespace ntx
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#endif // NTX_MAPTOR_H
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