UriTemplateEquivalenceComparer UriTemplateEquivalenceComparer UriTemplateEquivalenceComparer UriTemplateEquivalenceComparer Class

Definice

Třída, která slouží k UriTemplate porovnání instancí pro strukturální (místo odkazu), je rovnocenná.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)
Dědičnost
UriTemplateEquivalenceComparerUriTemplateEquivalenceComparerUriTemplateEquivalenceComparerUriTemplateEquivalenceComparer
Implementuje

Příklady

Následující příklad ukazuje rozdíl mezi rovností referencí a strukturální rovností.The following example shows the difference between reference equality and structural equality. Také ukazuje, jak použít UriTemplateEquivalenceComparer jako porovnávací ve slovníku.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

Poznámky

UriTemplateinstance jsou porovnány pomocí rovnosti odkazů ve výchozím nastavení.UriTemplate instances are compared using reference equality by default. Třída vyhodnocuje ekvivalenci pomocí IsEquivalentTo(UriTemplate) místo výchozí referenční kontroly rovnosti. UriTemplateEquivalenceComparerThe UriTemplateEquivalenceComparer class evaluates equivalence using IsEquivalentTo(UriTemplate) instead of the default reference equality check. Tato třída je užitečná v případě, že chcete porovnat UriTemplate dvě instance na základě identifikátorů URI, které odpovídají, místo striktní referenční rovnosti.This class is useful when you wish to compare two UriTemplate instances based on the URIs they match instead of strict reference equality.

Konstruktory

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

Inicializuje novou instanci třídy UriTemplateEquivalenceComparer třídy.Initializes a new instance of the UriTemplateEquivalenceComparer class.

Metody

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

Určuje, zda se zadaný objekt rovná aktuálnímu objektu.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)

Porovná UriTemplate dvě instance pro ekvivalenci.Compares two UriTemplate instances for equivalence.

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

Slouží jako výchozí funkce hash.Serves as the default hash function.

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

Získá kód hodnoty hash pro zadanou UriTemplate instanci.Gets a hash code for the specified UriTemplate instance.

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

Získá Type aktuální instance.Gets the Type of the current instance.

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

Vytvoří Mělkou kopii aktuální Object.Creates a shallow copy of the current Object.

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

Vrací řetězec, který představuje aktuální objekt.Returns a string that represents the current object.

(Inherited from Object)

Platí pro