70 lines
1.3 KiB
C++
70 lines
1.3 KiB
C++
#ifndef PGCONTAINER_H
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#define PGCONTAINER_H
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#include <QString>
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#include <vector>
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#include <libpq-fe.h>
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class PgsqlDatabaseCatalogue;
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template<typename T>
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class PgContainer {
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public:
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using t_Container = std::vector<T>; ///< Do not assume it will stay a vector only expect bidirectional access
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explicit PgContainer(PgsqlDatabaseCatalogue *cat)
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: m_catalogue(cat)
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{}
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typename t_Container::const_iterator begin() const
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{
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return m_container.begin();
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}
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typename t_Container::const_iterator end() const
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{
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return m_container.end();
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}
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void clear()
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{
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m_container.clear();
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}
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int count() const
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{
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return (int)m_container.size();
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}
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const T& getByOid(Oid oid) const
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{
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auto lb_result = std::lower_bound(m_container.begin(), m_container.end(), oid);
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if (lb_result != m_container.end() && lb_result->oid == oid)
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return *lb_result;
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return m_invalidInstance;
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}
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const T& getByName(const QString &name) const
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{
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auto find_res = std::find(m_container.begin(), m_container.end(), name);
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if (find_res != m_container.end())
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return *find_res;
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return m_invalidInstance;
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}
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const T& getByIdx(int idx) const
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{
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return m_container.at(idx);
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}
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protected:
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PgsqlDatabaseCatalogue *m_catalogue;
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t_Container m_container;
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private:
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T m_invalidInstance;
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};
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#endif // PGCONTAINER_H
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