<?xml version="1.0" encoding="utf-8"?>
<Type Name="IMetadataExchange" FullName="System.ServiceModel.Description.IMetadataExchange">
<TypeSignature Language="C#" Value="public interface IMetadataExchange" />
<TypeSignature Language="ILAsm" Value=".class public interface auto ansi abstract IMetadataExchange" />
<AssemblyInfo>
<AssemblyName>System.ServiceModel</AssemblyName>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<Interfaces />
<Attributes>
<Attribute>
<AttributeName>System.ServiceModel.ServiceContract(Name="IMetadataExchange", Namespace="http://schemas.microsoft.com/2006/04/mex")</AttributeName>
</Attribute>
</Attributes>
<Docs>
<remarks>
<attribution license="cc4" from="Microsoft" modified="false" />
<para>When programming indigo1 services, it is useful to publish metadata about the service. For example, metadata can be a Web Services Description Language (WSDL) document that describes all of the methods and data types employed by a service. Returning metadata about an indigo2 service allows consumers of a service to easily create clients for the service. For more information about indigo2 metadata endpoints, see <format type="text/html"><a href="66a61bd0-18d3-4e7e-bf8b-177a10ac2f60">Metadata</a></format>.</para>
<para>Services implemented using indigo2 publish metadata by exposing one or more metadata endpoints. Metadata endpoints in indigo2 have an address, a binding and a contract like any other endpoint. The <see cref="T:System.ServiceModel.Description.MetadataReference" /> interface specifies the service contract implemented by all metadata endpoints in indigo2.</para>
<para>There is no need to implement the <see cref="T:System.ServiceModel.Description.MetadataReference" /> contract in your service implementation. Instead, add the <see cref="T:System.ServiceModel.Description.ServiceMetadataBehavior" /> to the service description. </para>
<para>Or, when using configuration, set the contract attribute of the endpoint element to IMetadataExchange. For an example, see <format type="text/html"><a href="f061443f-92df-4824-b36a-609c4cd14a17">How to: Publish Metadata for a Service Using a Configuration File</a></format>.</para>
<para>For details on publishing metadata in indigo2 see <format type="text/html"><a href="3a56831a-cabc-45c0-bd02-12e2e9bd7313">Publishing Metadata</a></format>.</para>
</remarks>
<summary>
<attribution license="cc4" from="Microsoft" modified="false" />
<para>Exposes methods used to return metadata about a service.</para>
</summary>
</Docs>
<Members>
<Member MemberName="BeginGet">
<MemberSignature Language="C#" Value="public IAsyncResult BeginGet (System.ServiceModel.Channels.Message request, AsyncCallback callback, object state);" />
<MemberSignature Language="ILAsm" Value=".method public hidebysig newslot virtual instance class System.IAsyncResult BeginGet(class System.ServiceModel.Channels.Message request, class System.AsyncCallback callback, object state) cil managed" />
<MemberType>Method</MemberType>
<AssemblyInfo>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<Attributes>
<Attribute>
<AttributeName>System.ServiceModel.OperationContract(Action="http://schemas.xmlsoap.org/ws/2004/09/transfer/Get", AsyncPattern=true, ReplyAction="http://schemas.xmlsoap.org/ws/2004/09/transfer/GetResponse")</AttributeName>
</Attribute>
</Attributes>
<ReturnValue>
<ReturnType>System.IAsyncResult</ReturnType>
</ReturnValue>
<Parameters>
<Parameter Name="request" Type="System.ServiceModel.Channels.Message" />
<Parameter Name="callback" Type="System.AsyncCallback" />
<Parameter Name="state" Type="System.Object" />
</Parameters>
<Docs>
<remarks>To be added.</remarks>
<summary>
<attribution license="cc4" from="Microsoft" modified="false" />
<para>Starts an asynchronous retrieval of metadata.</para>
</summary>
<returns>
<attribution license="cc4" from="Microsoft" modified="false" />
<para>An <see cref="T:System.IAsyncResult" /> that can be passed to the <see cref="M:System.ServiceModel.Description.IMetadataExchange.EndGet(System.IAsyncResult)" /> method.</para>
</returns>
<param name="request">
<attribution license="cc4" from="Microsoft" modified="false" />A <see cref="T:System.ServiceModel.Channels.Message" /> that should be processed to determine the metadata to return.</param>
<param name="callback">
<attribution license="cc4" from="Microsoft" modified="false" />An <see cref="T:System.AsyncCallback" /> that points to the method that will process the metadata.</param>
<param name="state">
<attribution license="cc4" from="Microsoft" modified="false" />Any data which allows the caller to determine which asynchronous call is being returned.</param>
</Docs>
</Member>
<Member MemberName="EndGet">
<MemberSignature Language="C#" Value="public System.ServiceModel.Channels.Message EndGet (IAsyncResult result);" />
<MemberSignature Language="ILAsm" Value=".method public hidebysig newslot virtual instance class System.ServiceModel.Channels.Message EndGet(class System.IAsyncResult result) cil managed" />
<MemberType>Method</MemberType>
<AssemblyInfo>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.ServiceModel.Channels.Message</ReturnType>
</ReturnValue>
<Parameters>
<Parameter Name="result" Type="System.IAsyncResult" />
</Parameters>
<Docs>
<remarks>To be added.</remarks>
<summary>
<attribution license="cc4" from="Microsoft" modified="false" />
<para>Concludes the retrieval of metadata.</para>
</summary>
<returns>
<attribution license="cc4" from="Microsoft" modified="false" />
<para>A <see cref="T:System.ServiceModel.Channels.Message" /> containing the processed metadata.</para>
</returns>
<param name="result">
<attribution license="cc4" from="Microsoft" modified="false" />An <see cref="T:System.IAsyncResult" /> that contains data used to further process the metadata.</param>
</Docs>
</Member>
<Member MemberName="Get">
<MemberSignature Language="C#" Value="public System.ServiceModel.Channels.Message Get (System.ServiceModel.Channels.Message request);" />
<MemberSignature Language="ILAsm" Value=".method public hidebysig newslot virtual instance class System.ServiceModel.Channels.Message Get(class System.ServiceModel.Channels.Message request) cil managed" />
<MemberType>Method</MemberType>
<AssemblyInfo>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<Attributes>
<Attribute>
<AttributeName>System.ServiceModel.OperationContract(Action="http://schemas.xmlsoap.org/ws/2004/09/transfer/Get", AsyncPattern=false, ReplyAction="http://schemas.xmlsoap.org/ws/2004/09/transfer/GetResponse")</AttributeName>
</Attribute>
</Attributes>
<ReturnValue>
<ReturnType>System.ServiceModel.Channels.Message</ReturnType>
</ReturnValue>
<Parameters>
<Parameter Name="request" Type="System.ServiceModel.Channels.Message" />
</Parameters>
<Docs>
<remarks>To be added.</remarks>
<summary>
<attribution license="cc4" from="Microsoft" modified="false" />
<para>Returns the service metadata.</para>
</summary>
<returns>
<attribution license="cc4" from="Microsoft" modified="false" />
<para>A <see cref="T:System.ServiceModel.Channels.Message" /> containing the metadata.</para>
</returns>
<param name="request">
<attribution license="cc4" from="Microsoft" modified="false" />A <see cref="T:System.ServiceModel.Channels.Message" /> that contains the request for metadata.</param>
</Docs>
</Member>
</Members>
</Type>