UriTemplateEquivalenceComparer Clase

Definición

Una clase utilizada para comparar las instancias UriTemplate por su equivalencia estructural (en lugar de la referencia).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)
Herencia
UriTemplateEquivalenceComparer
Implementaciones

Ejemplos

El ejemplo siguiente muestra la diferencia entre la igualdad de la referencia y la igualdad estructural.The following example shows the difference between reference equality and structural equality. También muestra cómo utilizar UriTemplateEquivalenceComparer como comparador en un diccionario.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

Comentarios

Las instancias UriTemplate se comparan utilizando de forma predeterminada la igualdad de la referencia.UriTemplate instances are compared using reference equality by default. La clase UriTemplateEquivalenceComparer evalúa la equivalencia utilizando IsEquivalentTo(UriTemplate) en lugar de la comprobación de igualdad de referencia predeterminada.The UriTemplateEquivalenceComparer class evaluates equivalence using IsEquivalentTo(UriTemplate) instead of the default reference equality check. Esta clase es útil cuando se desea comparar dos instancias de UriTemplate en función de los URI con los que coinciden en lugar de la igualdad de la referencia estricta.This class is useful when you wish to compare two UriTemplate instances based on the URIs they match instead of strict reference equality.

Constructores

UriTemplateEquivalenceComparer()

Inicializa una nueva instancia de la clase UriTemplateEquivalenceComparer.Initializes a new instance of the UriTemplateEquivalenceComparer class.

Métodos

Equals(Object)

Determina si el objeto especificado es igual al objeto actual.Determines whether the specified object is equal to the current object.

(Heredado de Object)
Equals(UriTemplate, UriTemplate)

Compara dos instancias UriTemplate para determinar si son equivalentes.Compares two UriTemplate instances for equivalence.

GetHashCode()

Sirve como función hash predeterminada.Serves as the default hash function.

(Heredado de Object)
GetHashCode(UriTemplate)

Obtiene un código hash para la instancia UriTemplate especificada.Gets a hash code for the specified UriTemplate instance.

GetType()

Obtiene el Type de la instancia actual.Gets the Type of the current instance.

(Heredado de Object)
MemberwiseClone()

Crea una copia superficial del Object actual.Creates a shallow copy of the current Object.

(Heredado de Object)
ToString()

Devuelve un valor de tipo string que representa el objeto actual.Returns a string that represents the current object.

(Heredado de Object)

Se aplica a