XPathItem

XPathItem class

Represents an item in the XQuery 1.0 and XPath 2.0 Data Model.

class XPathItem : public virtual System::Object

Methods

MethodDescription
virtual bool Equals(ptr)Compares objects using C# Object.Equals semantics.
static std::enable_if<IsSmartPtr<T1>::value&&IsSmartPtr<T2>::value, bool>::type Equals(T1 const&, T2 const&)Compares reference type objects in C# style.
static std::enable_if<!IsSmartPtr<T1>::value&&!IsSmartPtr<T2>::value, bool>::type Equals(T1 const&, T2 const&)Compares value type objects in C# style.
static bool Equals(float const&, float const&)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.
static bool Equals(double const&, double const&)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.
virtual bool FastCast(const Details::FastRttiBase&, void **) constFor internal purposes only.
virtual bool get_IsNode()When overridden in a derived class, gets a value indicating whether the item represents an XPath node or an atomic value.
virtual SharedPtr<Object> get_TypedValue()When overridden in a derived class, gets the current item as a boxed object of the most appropriate type according to its schema type.
virtual String get_Value()When overridden in a derived class, gets the string value of the item.
virtual bool get_ValueAsBoolean()When overridden in a derived class, gets the item’s value as a Boolean.
virtual DateTime get_ValueAsDateTime()When overridden in a derived class, gets the item’s value as a DateTime.
virtual double get_ValueAsDouble()When overridden in a derived class, gets the item’s value as a Double.
virtual int32_t get_ValueAsInt()When overridden in a derived class, gets the item’s value as an Int32.
virtual int64_t get_ValueAsLong()When overridden in a derived class, gets the item’s value as an Int64.
virtual TypeInfo get_ValueType()When overridden in a derived class, gets the type of the item.
virtual SharedPtr<System::Xml::Schema::XmlSchemaType> get_XmlType()When overridden in a derived class, gets the XmlSchemaType for the item.
Detail::SmartPtrCounter * GetCounter()Gets reference counter data structure associated with the object.
virtual int32_t GetHashCode() constAnalog of C# Object.GetHashCode() method. Enables hashing of custom objects.
virtual const TypeInfo& GetType() constGets actual type of object. Analog of C# System.Object.GetType() call.
virtual bool Is(const TypeInfo&) constCheck if object represents an instance of type described by targetType. Analog of C# ‘is’ operator.
void Lock()Implements C# lock() statement locking. Call directly or use LockContext sentry object.
virtual ptr MemberwiseClone() constAnalog of C# Object.MemberwiseClone() method. Enables cloning custom types.
Object()Creates object. Initializes all internal data structures.
Object(Object const&)Copy constructor. Doesn’t copy anything, really, just initializes new object and enables copy constructing subclasses.
Object& operator=(Object const&)Assignment operator. Doesn’t copy anything, really, just initializes new object and enables copy constructing subclasses.
static bool ReferenceEquals(ptr const&, ptr const&)Compares objects by reference.
static std::enable_if<!IsSmartPtr<T>::value, bool>::type ReferenceEquals(T const&, T const&)Compares objects by reference.
static std::enable_if<!IsSmartPtr<T>::value, bool>::type ReferenceEquals(T const&, std::nullptr_t)Reference-compares value type object with nullptr.
bool ReferenceEquals(String const&, std::nullptr_t)Specialization of Object::ReferenceEquals for case of string and nullptr.
bool ReferenceEquals(String const&, String const&)Specialization of Object::ReferenceEquals for case of strings.
int RemovedSharedRefs(int)Decreases shared reference count by specified value.
virtual void SetTemplateWeakPtr(uint32_t)Set n’th template argument a weak pointer (rather than shared). Allows switching pointers in containers to weak mode.
int SharedCount() constGets current value of shared reference counter.
Object * SharedRefAdded()Increments shared reference count. Shouldn’t be called directly; instead, use smart pointers or ThisProtector.
int SharedRefRemovedSafe()Decrements and returns shared reference count. Shouldn’t be called directly; instead, use smart pointers or ThisProtector.
virtual String ToString() constAnalog of C# Object.ToString() method. Enables converting custom objects to string.
static const TypeInfo& Type()Implements C# typeof(System.Object) construct.
void Unlock()Implements C# lock() statement unlocking. Call directly or use LockContext sentry object.
virtual SharedPtr<Object> ValueAs(const TypeInfo&)Returns the item’s value as the specified type.
virtual SharedPtr<Object> ValueAs(const TypeInfo&, SharedPtr<IXmlNamespaceResolver>)When overridden in a derived class, returns the item’s value as the type specified using the IXmlNamespaceResolver object specified to resolve namespace prefixes.
Detail::SmartPtrCounter * WeakRefAdded()Increments weak reference count. Shouldn’t be called directly; instead, use smart pointers or ThisProtector.
void WeakRefRemoved()Decrements weak reference count. Shouldn’t be called directly; instead, use smart pointers or ThisProtector.
virtual ~Object()Destroys object. Frees all internal data structures.

Typedefs

TypedefDescription
PtrAn alias for shared pointer to an instance of this class.

See Also