UriTemplateEquivalenceComparer UriTemplateEquivalenceComparer UriTemplateEquivalenceComparer UriTemplateEquivalenceComparer Class

Definition

Eine Klasse, mit der UriTemplate-Instanzen hinsichtlich ihrer Strukturgleichheit (anstelle ihrer Verweisgleichheit) verglichen werden.A class used to compare UriTemplate instances for structural (instead of reference) equivalence.

public ref class UriTemplateEquivalenceComparer : System::Collections::Generic::IEqualityComparer<UriTemplate ^>
public class UriTemplateEquivalenceComparer : System.Collections.Generic.IEqualityComparer<UriTemplate>
type UriTemplateEquivalenceComparer = class
    interface IEqualityComparer<UriTemplate>
Public Class UriTemplateEquivalenceComparer
Implements IEqualityComparer(Of UriTemplate)
Vererbung
UriTemplateEquivalenceComparerUriTemplateEquivalenceComparerUriTemplateEquivalenceComparerUriTemplateEquivalenceComparer
Implementiert

Beispiele

Im folgenden Beispiel wird der Unterschied zwischen Verweisgleichheit und Strukturgleichheit veranschaulicht.The following example shows the difference between reference equality and structural equality. Außerdem wird die Verwendung von UriTemplateEquivalenceComparer als Vergleich in einem Wörterbuch veranschaulicht.It also shows how to use the UriTemplateEquivalenceComparer as a comparer in a dictionary.

// Define two structurally equivalent templates
UriTemplate temp1 = new UriTemplate("weather/{state}/{city}");
UriTemplate temp2 = new UriTemplate("weather/{country}/{village}");

// Notice they are not reference equal, in other words
// they are do not refer to the same object
if (temp1 == temp2)
    Console.WriteLine("{0} and {1} are reference equal", temp1, temp2);
else
    Console.WriteLine("{0} and {1} are NOT reference equal", temp1, temp2);

// Notice they are structrually equal
if (temp1.IsEquivalentTo(temp2))
    Console.WriteLine("{0} and {1} are structurally equal", temp1, temp2);
else
    Console.WriteLine("{0} and {1} are NOT structurally equal", temp1, temp2);

// Create a dictionary and use UriTemplateEquivalenceComparer as the comparer
Dictionary<UriTemplate, object> templates = new Dictionary<UriTemplate, object>(new UriTemplateEquivalenceComparer());

// Add template 1 into the dictionary
templates.Add(temp1, "template1");

// The UriTemplateEquivalenceComparer will be used here to compare the template in the table with template2
// they are structurally equivalent, so ContainsKey will return true.
if (templates.ContainsKey(temp2))
    Console.WriteLine("Both templates hash to the same value");
else
    Console.WriteLine("Both templates do NOT hash to the same value");
'Define two structurally equivalent templates
Dim temp1 As UriTemplate = New UriTemplate("weather/{state}/{city}")
Dim temp2 As UriTemplate = New UriTemplate("weather/{country}/{village}")

'Notice they are not reference equal, in other words
'they are do not refer to the same object
If temp1.Equals(temp2) Then
    Console.WriteLine("{0} and {1} are reference equal", temp1, temp2)
Else
    Console.WriteLine("{0} and {1} are NOT reference equal", temp1, temp2)
End If

'Notice they are structrually equal
If (temp1.IsEquivalentTo(temp2)) Then
    Console.WriteLine("{0} and {1} are structurally equal", temp1, temp2)
Else
    Console.WriteLine("{0} and {1} are NOT structurally equal", temp1, temp2)
End If

'Create a dictionary and use UriTemplateEquivalenceComparer as the comparer
Dim templates As Dictionary(Of UriTemplate, Object) = New Dictionary(Of UriTemplate, Object)(New UriTemplateEquivalenceComparer())

'Add template 1 into the dictionary
templates.Add(temp1, "template1")

'The UriTemplateEquivalenceComparer will be used here to compare the template in the table with template2
'they are structurally equivalent, so ContainsKey will return true.
If (templates.ContainsKey(temp2)) Then
    Console.WriteLine("Both templates hash to the same value")
Else
    Console.WriteLine("Both templates do NOT hash to the same value")
End If

Hinweise

UriTemplate-Instanzen werden standardmäßig mithilfe von Verweisgleichheit verglichen.UriTemplate instances are compared using reference equality by default. Die UriTemplateEquivalenceComparer-Klasse wertet Übereinstimmungen anstelle der standardmäßigen Verweisgleichheit mithilfe von IsEquivalentTo(UriTemplate) aus.The UriTemplateEquivalenceComparer class evaluates equivalence using IsEquivalentTo(UriTemplate) instead of the default reference equality check. Diese Klasse ist hilfreich, wenn Sie zwei UriTemplate-Instanzen auf Basis ihrer übereinstimmenden URIs vergleichen möchten und nicht mithilfe strikter Verweisgleichheit.This class is useful when you wish to compare two UriTemplate instances based on the URIs they match instead of strict reference equality.

Konstruktoren

UriTemplateEquivalenceComparer() UriTemplateEquivalenceComparer() UriTemplateEquivalenceComparer() UriTemplateEquivalenceComparer()

Initialisiert eine neue Instanz der UriTemplateEquivalenceComparer-Klasse.Initializes a new instance of the UriTemplateEquivalenceComparer class.

Methoden

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Bestimmt, ob das angegebene Objekt mit dem aktuellen Objekt identisch ist.Determines whether the specified object is equal to the current object.

(Inherited from Object)
Equals(UriTemplate, UriTemplate) Equals(UriTemplate, UriTemplate) Equals(UriTemplate, UriTemplate) Equals(UriTemplate, UriTemplate)

Vergleicht zwei UriTemplate-Instanzen hinsichtlich ihrer Gleichheit.Compares two UriTemplate instances for equivalence.

GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Fungiert als Standardhashfunktion.Serves as the default hash function.

(Inherited from Object)
GetHashCode(UriTemplate) GetHashCode(UriTemplate) GetHashCode(UriTemplate) GetHashCode(UriTemplate)

Ruft einen Hashcode für die angegebene UriTemplate-Instanz ab.Gets a hash code for the specified UriTemplate instance.

GetType() GetType() GetType() GetType()

Ruft den Type der aktuellen Instanz ab.Gets the Type of the current instance.

(Inherited from Object)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Erstellt eine flache Kopie des aktuellen Object.Creates a shallow copy of the current Object.

(Inherited from Object)
ToString() ToString() ToString() ToString()

Gibt eine Zeichenfolge zurück, die das aktuelle Objekt darstellt.Returns a string that represents the current object.

(Inherited from Object)

Gilt für: