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Copy JSON from SandBox to trunk
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‎JSON/Makefile‎

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#
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# Makefile
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#
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# $Id$
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#
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# Makefile for Poco JSON
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#
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include $(POCO_BASE)/build/rules/global
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INCLUDE += -I $(POCO_BASE)/JSON/include/Poco/JSON
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objects = Array Object Parser Handler \
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Stringifier DefaultHandler Query JSONException \
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Template TemplateCache
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target = PocoJSON
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target_version = $(LIBVERSION)
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target_libs = PocoFoundation
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include $(POCO_BASE)/build/rules/lib

‎JSON/include/Poco/JSON/Array.h‎

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//
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// Array.h
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//
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// $Id$
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//
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// Library: JSON
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// Package: JSON
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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 JSON_Array_INCLUDED
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#define JSON_Array_INCLUDED
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#include <vector>
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#include <sstream>
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#include "Poco/JSON/JSON.h"
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#include "Poco/SharedPtr.h"
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#include "Poco/DynamicAny.h"
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namespace Poco
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{
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namespace JSON
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{
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class Object;
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class JSON_API Array
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{
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public:
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typedef std::vector<DynamicAny> ValueVector;
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typedef SharedPtr<Array> Ptr;
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Array();
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/// Default constructor
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Array(const Array& copy);
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/// Copy Constructor
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virtual ~Array();
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/// Destructor
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ValueVector::const_iterator begin() const;
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/// Returns iterator
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ValueVector::const_iterator end() const;
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/// Returns iterator
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DynamicAny get(unsigned int index) const;
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/// Retrieves an element. Will return an empty value
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/// when the element doesn't exist.
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Array::Ptr getArray(unsigned int index) const;
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/// Retrieves an array. When the element is not
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/// an array or doesn't exist, an empty SharedPtr is returned.
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template<typename T>
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T getElement(unsigned int index) const
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/// Retrieves an element and tries to convert it to the
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/// template type. The convert<T> method of
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/// Dynamic is called which can also throw
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/// exceptions for invalid values.
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/// Note: This will not work for an array or an object.
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{
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DynamicAny value = get(index);
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return value.convert<T>();
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}
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SharedPtr<Object> getObject(unsigned int index) const;
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/// Retrieves an object. When the element is not
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/// an object or doesn't exist, an empty SharedPtr is returned.
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unsigned int size() const;
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/// Returns the size of the array
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bool isArray(unsigned int index) const;
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/// Returns true when the element is an array
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bool isNull(unsigned int index) const;
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/// Returns true when the element is null or
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/// when the element doesn't exist.
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bool isObject(unsigned int index) const;
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/// Returns true when the element is an object
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template<typename T>
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T optElement(unsigned int index, const T& def) const
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/// Returns the element at the given index. When
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/// the element is null, doesn't exist or can't
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/// be converted to the given type, the default
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/// value will be returned
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{
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T value = def;
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if ( index < _values.size() )
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{
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try
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{
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value = _values[index].convert<T>();
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}
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catch(...)
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{
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// Default value is returned.
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}
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}
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return value;
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}
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void add(const DynamicAny& value)
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/// Add the given value to the array
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{
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_values.push_back(value);
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}
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void stringify(std::ostream& out, unsigned int indent) const;
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/// Prints the array to out. When indent is 0, the array
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/// will be printed on one line without indentation.
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void remove(unsigned int index);
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/// Removes the element on the given index.
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private:
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ValueVector _values;
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};
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inline Array::ValueVector::const_iterator Array::begin() const
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{
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return _values.begin();
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}
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inline Array::ValueVector::const_iterator Array::end() const
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{
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return _values.end();
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}
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inline unsigned int Array::size() const
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{
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return _values.size();
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}
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inline bool Array::isArray(unsigned int index) const
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{
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DynamicAny value = get(index);
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return value.type() == typeid(Array::Ptr);
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}
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inline bool Array::isNull(unsigned int index) const
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{
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if ( index < _values.size() )
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{
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DynamicAny value = _values[index];
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return value.isEmpty();
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}
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return true;
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}
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inline void Array::remove(unsigned int index)
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{
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_values.erase(_values.begin() + index);
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}
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}} // Namespace Poco::JSON
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namespace Poco
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{
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template <>
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class DynamicAnyHolderImpl<JSON::Array::Ptr>: public DynamicAnyHolder
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{
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public:
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DynamicAnyHolderImpl(const JSON::Array::Ptr& val): _val(val)
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{
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}
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~DynamicAnyHolderImpl()
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{
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}
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const std::type_info& type() const
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{
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return typeid(JSON::Array::Ptr);
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}
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void convert(Int8&) const
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{
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throw BadCastException();
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}
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void convert(Int16&) const
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{
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throw BadCastException();
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}
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void convert(Int32&) const
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{
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throw BadCastException();
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}
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void convert(Int64&) const
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{
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throw BadCastException();
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}
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void convert(UInt8&) const
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{
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throw BadCastException();
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}
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void convert(UInt16&) const
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{
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throw BadCastException();
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}
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void convert(UInt32&) const
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{
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throw BadCastException();
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}
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void convert(UInt64&) const
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{
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throw BadCastException();
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}
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void convert(bool& value) const
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{
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value = !_val.isNull() && _val->size() > 0;
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}
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void convert(float&) const
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{
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throw BadCastException();
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}
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void convert(double&) const
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{
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throw BadCastException();
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}
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void convert(char&) const
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{
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throw BadCastException();
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}
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void convert(std::string& s) const
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{
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std::ostringstream oss;
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_val->stringify(oss, 2);
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s = oss.str();
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}
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void convert(DateTime& val) const
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{
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throw BadCastException();
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}
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void convert(LocalDateTime& ldt) const
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{
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throw BadCastException();
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}
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void convert(Timestamp& ts) const
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{
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throw BadCastException();
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}
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DynamicAnyHolder* clone() const
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{
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return new DynamicAnyHolderImpl(_val);
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}
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const JSON::Array::Ptr& value() const
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{
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return _val;
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}
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bool isArray() const
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{
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return false;
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}
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bool isInteger() const
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{
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return false;
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}
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bool isSigned() const
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{
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return false;
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}
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bool isNumeric() const
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{
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return false;
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}
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bool isString() const
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{
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return false;
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}
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private:
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JSON::Array::Ptr _val;
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};
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} // Namespace Poco
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#endif // JSON_Array_INCLUDED

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