UriTemplateEquivalenceComparer Class
A class used to compare UriTemplate instances for structural (instead of reference) equivalence.
Assembly: System.ServiceModel (in System.ServiceModel.dll)
| Name | Description | |
|---|---|---|
![]() | UriTemplateEquivalenceComparer() | Initializes a new instance of the UriTemplateEquivalenceComparer class. |
| Name | Description | |
|---|---|---|
![]() | Equals(Object) | Determines whether the specified object is equal to the current object.(Inherited from Object.) |
![]() | Equals(UriTemplate, UriTemplate) | Compares two UriTemplate instances for equivalence. |
![]() | Finalize() | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.) |
![]() | GetHashCode() | Serves as the default hash function. (Inherited from Object.) |
![]() | GetHashCode(UriTemplate) | Gets a hash code for the specified UriTemplate instance. |
![]() | GetType() | |
![]() | MemberwiseClone() | |
![]() | ToString() | Returns a string that represents the current object.(Inherited from Object.) |
UriTemplate instances are compared using reference equality by default. The UriTemplateEquivalenceComparer class evaluates equivalence using IsEquivalentTo(UriTemplate) instead of the default reference equality check. This class is useful when you wish to compare two UriTemplate instances based on the URIs they match instead of strict reference equality.
The following example shows the difference between reference equality and structural equality. 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");
Available since 3.5
Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

