UriTemplateTable Class

Definition

Namespace:

System

Assembly:

System.ServiceModel.dll

A class that represents an associative set of UriTemplate objects.

public ref class UriTemplateTable

public class UriTemplateTable

type UriTemplateTable = class

Public Class UriTemplateTable

Inheritance

Object

UriTemplateTable

Examples

The following code shows how to create a UriTemplateTable, populate it, and use it to match against a candidate Uri.

Uri prefix = new Uri("http://localhost/");

//Create a series of templates
UriTemplate weatherByCity  = new UriTemplate("weather/{state}/{city}");
UriTemplate weatherByCountry = new UriTemplate("weather/{country}/{village}");
UriTemplate weatherByState = new UriTemplate("weather/{state}");
UriTemplate traffic = new UriTemplate("traffic/*");
UriTemplate wildcard = new UriTemplate("*");

//Create a template table
UriTemplateTable table = new UriTemplateTable(prefix);
//Add each template to the table with some associated data
table.KeyValuePairs.Add(new KeyValuePair<UriTemplate, Object>(weatherByCity, "weatherByCity"));
table.KeyValuePairs.Add(new KeyValuePair<UriTemplate, Object>(weatherByCountry, "weatherByCountry"));
table.KeyValuePairs.Add(new KeyValuePair<UriTemplate, Object>(weatherByState, "weatherByState"));
table.KeyValuePairs.Add(new KeyValuePair<UriTemplate, Object>(traffic, "traffic"));

table.MakeReadOnly(true);
Console.WriteLine("KeyValuePairs:");
foreach (KeyValuePair<UriTemplate, Object> keyPair in table.KeyValuePairs)
{
    Console.WriteLine($"{keyPair.Key}, {keyPair.Value}");
}

Console.WriteLine();

//Call MatchSingle to retrieve some match results:
ICollection<UriTemplateMatch> results = null;
Uri weatherInSeattle = new Uri("http://localhost/weather/Washington/Seattle");

results = table.Match(weatherInSeattle);
if( results != null)
{
    Console.WriteLine("Matching templates:");
    foreach (UriTemplateMatch match in results)
    {
        Console.WriteLine(match.Template);
    }
}

Dim prefix As New Uri("http://localhost/")

' Create a series of templates
Dim weatherByCity As New UriTemplate("weather/ state}/ city}")
Dim weatherByCountry As New UriTemplate("weather/ country}/ village}")
Dim weatherByState As New UriTemplate("weather/ state}")
Dim traffic As New UriTemplate("traffic/*")
Dim wildcard As New UriTemplate("*")

' Create a template table
Dim table As New UriTemplateTable(prefix)
' Add each template to the table with some associated data
table.KeyValuePairs.Add(New KeyValuePair(Of UriTemplate, Object)(weatherByCity, "weatherByCity"))
table.KeyValuePairs.Add(New KeyValuePair(Of UriTemplate, Object)(weatherByCountry, "weatherByCountry"))
table.KeyValuePairs.Add(New KeyValuePair(Of UriTemplate, Object)(weatherByState, "weatherByState"))
table.KeyValuePairs.Add(New KeyValuePair(Of UriTemplate, Object)(traffic, "traffic"))

table.MakeReadOnly(True)
Console.WriteLine("KeyValuePairs:")
For Each keyPair As KeyValuePair(Of UriTemplate, Object) In table.KeyValuePairs
    Console.WriteLine("     0},  1}", keyPair.Key, keyPair.Value)
Next

Console.WriteLine()

' Call MatchSingle to retrieve some match results:
Dim results As System.Collections.Generic.ICollection(Of UriTemplateMatch) = Nothing
Dim weatherInSeattle As Uri = New Uri("http://localhost/weather/Washington/Seattle")

results = table.Match(weatherInSeattle)
If results IsNot Nothing Then
    Console.WriteLine("Matching templates:")
    For Each match As UriTemplateMatch In results
        Console.WriteLine("    0}", match.Template)
    Next
End If

Remarks

A UriTemplateTable is an associative set of UriTemplate objects bound to an object of the developer's choosing. It allows you to match candidate Uniform Resource Identifiers (URIs) against the templates in the set and retrieve the data associated with the matching templates. The contents of UriTemplateTable can be changed until the MakeReadOnly(Boolean) method is called, at which time one of following types of validation occurs:

• When MakeReadOnly(Boolean) is called passing in false, the UriTemplateTable checks to make sure the table contains no multiple structurally-equivalent templates. If it finds such templates, it throws an exception. This type of validation is used in conjunction with MatchSingle(Uri) when you want to ensure only one template matches an incoming URI.

• When MakeReadOnly(Boolean) is called passing in true, multiple structurally-equivalent templates can be contained within a UriTemplateTable. However, any query strings in the templates must not be ambiguous; identical query strings are allowed. For more information about ambiguous query strings, see UriTemplate and UriTemplateTable.

Constructors

UriTemplateTable()	Initializes a new instance of the UriTemplateTable class.
UriTemplateTable(IEnumerable<KeyValuePair<UriTemplate,Object>>)	Initializes a new instance of the UriTemplateTable class with the specified collection of key/value pairs.
UriTemplateTable(Uri)	Initializes a new instance of the UriTemplateTable class with the specified base address.
UriTemplateTable(Uri, IEnumerable<KeyValuePair<UriTemplate,Object>>)	Initializes a new instance of the UriTemplateTable class with the specified base address and collection of key/value pairs.

Properties

BaseAddress	Gets or sets the base address for the UriTemplateTable instance.
IsReadOnly	Gets a value that specifies whether the UriTemplateTable is read only.
KeyValuePairs	Gets a collection of key/value pairs that consist of UriTemplate objects and their associated data.
OriginalBaseAddress	Gets the original base address.

Methods

Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetType()	Gets the Type of the current instance. (Inherited from Object)
MakeReadOnly(Boolean)	Makes the UriTemplateTable read only.
Match(Uri)	Attempts to match a candidate Uri to the UriTemplateTable.
MatchSingle(Uri)	Attempts to match a candidate Uri to the UriTemplateTable.
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
ToString()	Returns a string that represents the current object. (Inherited from Object)