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127 lines
3.5 KiB
C++
127 lines
3.5 KiB
C++
//
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// Array.h
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//
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// $Id$
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//
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// Library: MongoDB
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// Package: MongoDB
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// Module: Array
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//
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// Definition of the Array class.
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//
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// Copyright (c) 2012, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#ifndef MongoDB_Array_INCLUDED
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#define MongoDB_Array_INCLUDED
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#include "Poco/NumberFormatter.h"
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#include "Poco/MongoDB/MongoDB.h"
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#include "Poco/MongoDB/Document.h"
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namespace Poco {
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namespace MongoDB {
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class MongoDB_API Array : public Document
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/// Implements the BSON Array
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{
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public:
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typedef SharedPtr<Array> Ptr;
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Array();
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/// Constructor
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virtual ~Array();
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/// Destructor
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template<typename T>
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T get(int pos) const
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/// Returns the element on the given index and tries to convert
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/// it to the template type. When the element is not found, a
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/// NotFoundException will be thrown. When the element can't be
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/// converted a BadCastException will be thrown.
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{
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return Document::get<T>(Poco::NumberFormatter::format(pos));
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}
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template<typename T>
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T get(int pos, const T& def) const
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/// Returns the element on the given index and tries to convert
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/// it to the template type. When the element is not found, or
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/// has the wrong type, the def argument will be returned.
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{
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return Document::get<T>(Poco::NumberFormatter::format(pos), def);
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}
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Element::Ptr get(int pos) const;
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/// Returns the element on the given index.
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/// An empty element will be returned when the element is not found.
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template<typename T>
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bool isType(int pos)
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/// Returns true when the type of the element equals the TypeId of ElementTrait
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{
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return Document::isType<T>(Poco::NumberFormatter::format(pos));
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}
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std::string toString(int indent = 0) const;
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};
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// BSON Embedded Array
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// spec: document
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template<>
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struct ElementTraits<Array::Ptr>
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{
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enum { TypeId = 0x04 };
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static std::string toString(const Array::Ptr& value, int indent = 0)
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{
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//TODO:
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return value.isNull() ? "null" : value->toString(indent);
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}
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};
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template<>
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inline void BSONReader::read<Array::Ptr>(Array::Ptr& to)
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{
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to->read(_reader);
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}
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template<>
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inline void BSONWriter::write<Array::Ptr>(Array::Ptr& from)
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{
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from->write(_writer);
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}
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} } // namespace Poco::MongoDB
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#endif //MongoDB_Array_INCLUDED
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