Asposecpplib

Represents an XPath expression. 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.

Public Types

typedef SharedPtr< XPathExpressionPtr
 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...
 

Public Member Functions

virtual ~XPathExpression ()
 Destructor. More...
 
String get_Expression () const
 Returns a string representation of the XPath expression represented by the current object. More...
 
XPathResultType::XPathResultType_ get_ReturnType () const
 NOT SUPPORTED. More...
 
xmlXPathCompExpr * native () const
 Returns the underlying xmllib2 xmlXPathCompExpr object. More...
 
- Public Member Functions inherited from System::Object
 Object ()
 Creates object. Initializes all internal data structures. More...
 
virtual ~Object ()
 Destroys object. Frees all internal data structures. More...
 
 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 reference counter. More...
 
void Lock ()
 Implements C# lock() statement locking. Call directly or use LockContext sentry object. More...
 
void Unlock ()
 Implements C# lock() statement unlocking. Call directly or use LockContext sentry object. More...
 
virtual bool Equals (ptr obj)
 Compares objects using C# Object.Equals semantics. More...
 
virtual int32_t GetHashCode () const
 Analog of C# Object.GetHashCode() method. Enables hashing of custom objects. More...
 
virtual String ToString () const
 Analog of C# Object.ToString() method. Enables converting custom objects to string. More...
 
virtual ptr MemberwiseClone () const
 Analog of C# Object.MemberwiseClone() method. Enables cloning custom types. More...
 
virtual const TypeInfoGetType () const
 Gets actual type of object. Analog of C# System.Object.GetType() call. More...
 
virtual bool Is (const TypeInfo &targetType) const
 Check if object represents an instance of type described by targetType. Analog of C# 'is' operator. More...
 
virtual void SetTemplateWeakPtr (uint32_t argument)
 Set n'th template argument a weak pointer (rather than shared). Allows switching pointers in containers to weak mode. More...
 
virtual bool FastCast (const Details::FastRttiBase &helper, void **out_ptr) const
 For internal purposes only. 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...
 

Static Public Member Functions

static XPathExpression::Ptr Compile (const String &xpath)
 Constructs an XPathExpression object that represents the specified XPath expression. More...
 
- 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 ()
 Implements 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...
 

Protected Member Functions

 XPathExpression (const String &expr_str, xmlXPathCompExpr *expr)
 Constructs an XPathExprossion object that represents the specified XPath expression and initializes it with the specified xmlXPathCompExpr object. More...
 

Protected Attributes

String m_expr_str
 The string representation of the XPath expression represented by the current object. More...
 
xmlXPathCompExpr * m_expr
 The underlying xmllib2 xmlXPathCompExpr object used by the current object. More...
 

Detailed Description

Represents an XPath expression. 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.

Constructor & Destructor Documentation

◆ ~XPathExpression()

virtual System::Xml::XPath::XPathExpression::~XPathExpression ( )
virtual

Destructor.

◆ XPathExpression()

System::Xml::XPath::XPathExpression::XPathExpression ( const String expr_str,
xmlXPathCompExpr *  expr 
)
inlineprotected

Constructs an XPathExprossion object that represents the specified XPath expression and initializes it with the specified xmlXPathCompExpr object.

Parameters
expr_strThe string representation of the XPath expression to be represented by the object being created
exprAn instance of xmlXPathCompExpr class to be used by the object being created

Member Function Documentation

◆ Compile()

static XPathExpression::Ptr System::Xml::XPath::XPathExpression::Compile ( const String xpath)
static

Constructs an XPathExpression object that represents the specified XPath expression.

Parameters
xpathThe string representation of XPath expression
Returns
An instance of XPathExpression class that represents xpath expression

◆ get_Expression()

String System::Xml::XPath::XPathExpression::get_Expression ( ) const
inline

Returns a string representation of the XPath expression represented by the current object.

◆ get_ReturnType()

XPathResultType::XPathResultType_ System::Xml::XPath::XPathExpression::get_ReturnType ( ) const
inline

NOT SUPPORTED.

Exceptions
NotSupportedExceptionAlways

◆ native()

xmlXPathCompExpr* System::Xml::XPath::XPathExpression::native ( ) const
inline

Returns the underlying xmllib2 xmlXPathCompExpr object.

Member Data Documentation

◆ m_expr

xmlXPathCompExpr* System::Xml::XPath::XPathExpression::m_expr
protected

The underlying xmllib2 xmlXPathCompExpr object used by the current object.

◆ m_expr_str

String System::Xml::XPath::XPathExpression::m_expr_str
protected

The string representation of the XPath expression represented by the current object.