mirror of https://github.com/Icinga/icinga2.git
99 lines
3.3 KiB
C++
99 lines
3.3 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#ifndef VARIANT_H
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#define VARIANT_H
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namespace icinga
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{
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/**
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* The type of a Variant object.
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*
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* @ingroup base
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*/
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enum VariantType
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{
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VariantEmpty, /**< Denotes that the Variant is empty. */
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VariantInteger, /**< Denotes that the Variant is holding an integer. */
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VariantString, /**< Denotes that the Variant is holding a string. */
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VariantObject /**< Denotes that the Variant is holding an object
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that inherits from the Object class. */
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};
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/**
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* A type that can hold an arbitrary value.
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*
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* @ingroup base
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*/
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class I2_BASE_API Variant
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{
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public:
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inline Variant(void) : m_Type(VariantEmpty) { }
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inline Variant(int value)
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: m_Type(VariantInteger), m_IntegerValue(value) { }
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inline Variant(bool value)
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: m_Type(VariantInteger), m_IntegerValue(value ? 1 : 0) { }
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inline Variant(long value)
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: m_Type(VariantInteger), m_IntegerValue(value) { }
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inline Variant(const char *value)
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: m_Type(VariantString), m_StringValue(string(value)) { }
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inline Variant(string value)
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: m_Type(VariantString), m_StringValue(value) { }
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template<typename T>
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Variant(const shared_ptr<T>& value)
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: m_Type(VariantObject), m_ObjectValue(value) { }
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VariantType GetType(void) const;
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long GetInteger(void) const;
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bool GetBool(void) const;
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string GetString(void) const;
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Object::Ptr GetObject(void) const;
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bool IsEmpty(void) const;
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operator long(void) const;
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operator bool(void) const;
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operator string(void) const;
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operator Object::Ptr(void) const;
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private:
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mutable VariantType m_Type; /**< The type of the Variant. */
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mutable long m_IntegerValue; /**< The value of the Variant
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if m_Type == VariantInteger */
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mutable string m_StringValue; /**< The value of the Variant
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if m_Type == VariantString */
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mutable Object::Ptr m_ObjectValue; /**< The value of the Variant
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if m_Type == VariantObject */
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void Convert(VariantType newType) const;
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};
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}
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#endif /* VARIANT_H */
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