Asposecpplib
System::Xml::XPath::XPathItem Class Referenceabstract

Represents an item in the XQuery 1.0 and XPath 2.0 Data Model. Objects of this class should only be allocated using System::MakeObject() function. Never create instance of this type on stack or using operator new, as it will result in runtime errors and/or assertion faults. Always wrap this class into System::SmartPtr pointer and use this pointer to pass it to functions as argument. More...

Inherits System::Object.

Inherited by System::Xml::XPath::XPathNavigator.

Public Types

typedef SharedPtr< XPathItemPtr
 An alias for shared pointer to an instance of this class. More...
 
- Public Types inherited from System::Object
typedef SmartPtr< Objectptr
 Alias for smart pointer type. More...
 
typedef System::Details::SharedMembersType shared_members_type
 structure to keep list of shared pointers contained in object. More...
 

Public Member Functions

virtual ASPOSECPP_SHARED_API String get_Value () const =0
 Returns the item's value as a string. More...
 
virtual ASPOSECPP_SHARED_API int get_ValueAsInt () const =0
 Returns the item's value as a 32-bit integer. More...
 
virtual ASPOSECPP_SHARED_API System::DateTime get_ValueAsDateTime () const =0
 Returns the item's value as an instance of DateTime object. More...
 
virtual ASPOSECPP_SHARED_API double get_ValueAsDouble () const =0
 Returns the item's value as a double-precision floating point number. More...
 
virtual ASPOSECPP_SHARED_API int64_t get_ValueAsLong () const =0
 Returns the item's value as a 64-bit integer. More...
 
- Public Member Functions inherited from System::Object
ASPOSECPP_SHARED_API Object ()
 Creates object. Initializes all internal data structures. More...
 
virtual ASPOSECPP_SHARED_API ~Object ()
 Destroys object. Frees all internal data structures. More...
 
ASPOSECPP_SHARED_API Object (Object const &x)
 Copy constructor. Doesn't copy anything, really, just initializes new object and enables copy constructing subclasses. More...
 
Objectoperator= (Object const &x)
 Assignment operator. Doesn't copy anything, really, just initializes new object and enables copy constructing subclasses. More...
 
ObjectSharedRefAdded ()
 Increments shared reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...
 
int SharedRefRemovedSafe ()
 Decrements and returns shared reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...
 
int RemovedSharedRefs (int count)
 Decreases shared reference count by specified value. More...
 
Detail::SmartPtrCounter * WeakRefAdded ()
 Increments weak reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...
 
void WeakRefRemoved ()
 Decrements weak reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...
 
Detail::SmartPtrCounter * GetCounter ()
 Gets reference counter data structure associated with the object. More...
 
int SharedCount () const
 Gets current value of shared refernce counter. More...
 
ASPOSECPP_SHARED_API void Lock ()
 Implements C# lock() statement locking. Call directly or use LockContext sentry object. More...
 
ASPOSECPP_SHARED_API void Unlock ()
 Implements C# lock() statement unlocking. Call directly or use LockContext sentry object. More...
 
virtual ASPOSECPP_SHARED_API bool Equals (ptr obj)
 Compares objects using C# Object.Equals semantics. More...
 
virtual ASPOSECPP_SHARED_API int32_t GetHashCode () const
 Analog of C# Object.GetHashCode() method. Enables hashing of custom objects. More...
 
virtual ASPOSECPP_SHARED_API String ToString () const
 Analog of C# Object.ToString() method. Enables converting custom objects to string. More...
 
virtual ASPOSECPP_SHARED_API ptr MemberwiseClone () const
 Analog of C# Object.MemberwiseClone() method. Enables cloning custom types. More...
 
virtual ASPOSECPP_SHARED_API const TypeInfoGetType () const
 Gets actual type of object. Analog of C# System.Object.GetType() call. More...
 
virtual ASPOSECPP_SHARED_API bool Is (const TypeInfo &targetType) const
 Check if object represents an instance of type described by targetType. Analog of C# 'is' operator. More...
 
virtual ASPOSECPP_SHARED_API void SetTemplateWeakPtr (unsigned int argument)
 Set n'th template argument a weak pointer (rather than shared). Allows switching pointers in containers to weak mode. More...
 
template<>
bool ReferenceEquals (String const &str, std::nullptr_t)
 Specialization of Object::ReferenceEquals for case of string and nullptr. More...
 
template<>
bool ReferenceEquals (String const &str1, String const &str2)
 Specialization of Object::ReferenceEquals for case of strings. More...
 

Additional Inherited Members

- Static Public Member Functions inherited from System::Object
static bool ReferenceEquals (ptr const &objA, ptr const &objB)
 Compares objects by reference. More...
 
template<typename T >
static std::enable_if<!IsSmartPtr< T >::value, bool >::type ReferenceEquals (T const &objA, T const &objB)
 Compares objects by reference. More...
 
template<typename T >
static std::enable_if<!IsSmartPtr< T >::value, bool >::type ReferenceEquals (T const &objA, std::nullptr_t)
 Reference-compares value type object with nullptr. More...
 
template<typename T1 , typename T2 >
static std::enable_if< IsSmartPtr< T1 >::value &&IsSmartPtr< T2 >::value, bool >::type Equals (T1 const &objA, T2 const &objB)
 Compares reference type objects in C# style. More...
 
template<typename T1 , typename T2 >
static std::enable_if<!IsSmartPtr< T1 >::value &&!IsSmartPtr< T2 >::value, bool >::type Equals (T1 const &objA, T2 const &objB)
 Compares value type objects in C# style. More...
 
static const TypeInfoType ()
 Impleemnts C# typeof(System.Object) construct. More...
 
template<>
bool Equals (float const &objA, float const &objB)
 Emulates C#-style floating point comparison where two NaNs are considered equal even though according to IEC 60559:1989 NaN is not equal to any value, including NaN. More...
 
template<>
bool Equals (double const &objA, double const &objB)
 Emulates C#-style floating point comparison where two NaNs are considered equal even though according to IEC 60559:1989 NaN is not equal to any value, including NaN. More...
 

Detailed Description

Represents an item in the XQuery 1.0 and XPath 2.0 Data Model. Objects of this class should only be allocated using System::MakeObject() function. Never create instance of this type on stack or using operator new, as it will result in runtime errors and/or assertion faults. Always wrap this class into System::SmartPtr pointer and use this pointer to pass it to functions as argument.

Member Typedef Documentation

◆ Ptr

An alias for shared pointer to an instance of this class.

Member Function Documentation

◆ get_Value()

virtual ASPOSECPP_SHARED_API String System::Xml::XPath::XPathItem::get_Value ( ) const
pure virtual

Returns the item's value as a string.

Implemented in System::Xml::XPath::XPathNavigator.

◆ get_ValueAsDateTime()

virtual ASPOSECPP_SHARED_API System::DateTime System::Xml::XPath::XPathItem::get_ValueAsDateTime ( ) const
pure virtual

Returns the item's value as an instance of DateTime object.

Implemented in System::Xml::XPath::XPathNavigator.

◆ get_ValueAsDouble()

virtual ASPOSECPP_SHARED_API double System::Xml::XPath::XPathItem::get_ValueAsDouble ( ) const
pure virtual

Returns the item's value as a double-precision floating point number.

Implemented in System::Xml::XPath::XPathNavigator.

◆ get_ValueAsInt()

virtual ASPOSECPP_SHARED_API int System::Xml::XPath::XPathItem::get_ValueAsInt ( ) const
pure virtual

Returns the item's value as a 32-bit integer.

Implemented in System::Xml::XPath::XPathNavigator.

◆ get_ValueAsLong()

virtual ASPOSECPP_SHARED_API int64_t System::Xml::XPath::XPathItem::get_ValueAsLong ( ) const
pure virtual

Returns the item's value as a 64-bit integer.

Implemented in System::Xml::XPath::XPathNavigator.