MessageQueryTable<TItem> クラス
定義
重要
一部の情報は、リリース前に大きく変更される可能性があるプレリリースされた製品に関するものです。 Microsoft は、ここに記載されている情報について、明示または黙示を問わず、一切保証しません。
メッセージ クエリ オブジェクトのコレクションを管理します。
generic <typename TItem>
public ref class MessageQueryTable : System::Collections::Generic::ICollection<System::Collections::Generic::KeyValuePair<System::ServiceModel::Dispatcher::MessageQuery ^, TItem>>, System::Collections::Generic::IDictionary<System::ServiceModel::Dispatcher::MessageQuery ^, TItem>, System::Collections::Generic::IEnumerable<System::Collections::Generic::KeyValuePair<System::ServiceModel::Dispatcher::MessageQuery ^, TItem>>public class MessageQueryTable<TItem> : System.Collections.Generic.ICollection<System.Collections.Generic.KeyValuePair<System.ServiceModel.Dispatcher.MessageQuery,TItem>>, System.Collections.Generic.IDictionary<System.ServiceModel.Dispatcher.MessageQuery,TItem>, System.Collections.Generic.IEnumerable<System.Collections.Generic.KeyValuePair<System.ServiceModel.Dispatcher.MessageQuery,TItem>>type MessageQueryTable<'Item> = class
interface IDictionary<MessageQuery, 'Item>
interface ICollection<KeyValuePair<MessageQuery, 'Item>>
interface seq<KeyValuePair<MessageQuery, 'Item>>
interface IEnumerablePublic Class MessageQueryTable(Of TItem)
Implements ICollection(Of KeyValuePair(Of MessageQuery, TItem)), IDictionary(Of MessageQuery, TItem), IEnumerable(Of KeyValuePair(Of MessageQuery, TItem))型パラメーター
- TItem
クエリによって返される値の型。
- 継承
-
MessageQueryTable<TItem>
- 実装
-
ICollection<KeyValuePair<MessageQuery,TItem>> ICollection<KeyValuePair<TKey,TValue>> IDictionary<MessageQuery,TItem> IEnumerable<KeyValuePair<MessageQuery,TItem>> IEnumerable<KeyValuePair<TKey,TValue>> IEnumerable<T> IEnumerable
例
次の例では、メッセージ クエリと XPath メッセージ クエリを作成します。 クエリは、XPathMessageQueryCollection オブジェクトに含まれる XPathMessageQuery オブジェクトによって評価されます。 各クエリの結果は、XPathResult クラスの ResultType プロパティを使用してテストされます。 代替コードのコメントを解除して、MessageQueryTable<TItem>を使用して示されている同様の機能を確認します。
using System;
using System.IO;
using System.Xml;
using System.ServiceModel.Dispatcher;
using System.ServiceModel;
using System.ServiceModel.Channels;
using System.Xml.XPath;
namespace MessageQueryExamples
{
class Program
{
static void Main(string[] args)
{
// The XPathMessageQueryCollection inherits from MessageQueryCollection.
XPathMessageQueryCollection queryCollection = MessageHelper.SetupQueryCollection();
// Create a message and a copy of the message. You must create a buffered copy to access the message body.
Message mess = MessageHelper.CreateMessage();
MessageBuffer mb = mess.CreateBufferedCopy(int.MaxValue);
// Evaluate every query in the collection.
foreach (XPathMessageQuery q in queryCollection)
{
// Evaluate the query. Note the result type is an XPathResult.
XPathResult qPathResult = q.Evaluate<XPathResult>(mb);
// Use the XPathResult to determine the result type.
Console.WriteLine("Result type: {0}", qPathResult.ResultType);
// The following code prints the result according to the result type.
if (qPathResult.ResultType == XPathResultType.String)
Console.WriteLine("{0} = {1}", q.Expression, qPathResult.GetResultAsString());
if (qPathResult.ResultType == XPathResultType.NodeSet)
{
// Iterate through the node set.
XPathNodeIterator ns = qPathResult.GetResultAsNodeset();
foreach (XPathNavigator n in ns)
Console.WriteLine("\t{0} = {1}", q.Expression, n.Value);
}
if (qPathResult.ResultType == XPathResultType.Number)
Console.WriteLine("\t{0} = {1}", q.Expression, qPathResult.GetResultAsNumber());
if (qPathResult.ResultType == XPathResultType.Boolean)
Console.WriteLine("\t{0} ={1}", q.Expression, qPathResult.GetResultAsBoolean());
if (qPathResult.ResultType == XPathResultType.Error)
Console.WriteLine("\tError!");
}
Console.WriteLine();
// The alternate code below demonstrates similar funcionality using a MessageQueryTable.
// The difference is the KeyValuePair that requires a key to index each value.
// The code uses the expression as the key, and an arbitrary value for the value.
//MessageQueryTable<string> mq = MessageHelper.SetupTable();
//foreach (KeyValuePair<MessageQuery, string> kv in mq)
//{
// XPathMessageQuery xp = (XPathMessageQuery)kv.Key;
// Console.WriteLine("Value = {0}", kv.Value);
// Console.WriteLine("{0} = {1}", xp.Expression, xp.Evaluate<string>(mb));
//}
Console.ReadLine();
}
}
public class MessageHelper
{
static string messageBody =
"<PurchaseOrder date='today'>" +
"<Number>ABC-2009-XYZ</Number>" +
"<Department>OnlineSales</Department>" +
"<Items>" +
"<Item product='nail' quantity='1'>item1</Item>" +
"<Item product='screw' quantity='2'>item2</Item>" +
"<Item product='brad' quantity='3'>" +
"<SpecialOffer/>" +
"Special item4" +
"</Item>" +
"<Item product='SpecialNails' quantity='9'>item5</Item>" +
"<Item product='SpecialBrads' quantity='11'>" +
"<SpecialOffer/>" +
"Special item6" +
"</Item>" +
"<Item product='hammer' quantity='1'>item7</Item>" +
"<Item product='wrench' quantity='2'>item8</Item>" +
"</Items>" +
"<Comments>" +
"Rush order" +
"</Comments>" +
"</PurchaseOrder>";
public static string xpath = "/s12:Envelope/s12:Body/PurchaseOrder/Items/Item[@quantity = 1]";
public static string xpath2 = "/s12:Envelope/s12:Body/PurchaseOrder/Items/Item[@product = 'nail']";
public static string xpath3 = "/s12:Envelope/s12:Body/PurchaseOrder/Comments";
public static string xpath4 = "count(/s12:Envelope/s12:Body/PurchaseOrder/Items/Item)";
public static string xpath5 = "substring(string(/s12:Envelope/s12:Body/PurchaseOrder/Number),5,4)";
public static string xpath6 = "/s12:Envelope/s12:Body/PurchaseOrder/Department='OnlineSales'";
public static string xpath7 = "//PurchaseOrder/@date";
public static string xpath8 = "//SpecialOffer/ancestor::Item[@product = 'brad']";
// Invoke the correlation data function.
public static string xpath9 = "sm:correlation-data('CorrelationData1')";
public static string xpath10 = "sm:correlation-data('CorrelationData2')";
public static string xpath11 = "/s12:Envelope/s12:Body/PurchaseOrder/Items/Item[@quantity = 2]";
public static Message CreateMessage()
{
StringReader stringReader = new StringReader(messageBody);
XmlTextReader xmlReader = new XmlTextReader(stringReader);
Message message = Message.CreateMessage(MessageVersion.Soap12WSAddressing10, "http://purchaseorder", xmlReader);
// Add two correlation properties using lambda expressions. The property names are
// CorrelationData1 and CorrelationData2. The first goes to "value1" and the
// second to "value2". You can use your own property names and values.
CorrelationDataMessageProperty data = new CorrelationDataMessageProperty();
data.Add("CorrelationData1", () => "value1");
data.Add("CorrelationData2", () => "value2");
message.Properties[CorrelationDataMessageProperty.Name] = data;
return message;
}
public static XPathMessageQueryCollection SetupQueryCollection()
{
// Create the query collection and add the XPath queries to it. To create
// the query, you must also use a new XPathMessageContext.
XPathMessageQueryCollection queryCollection = new XPathMessageQueryCollection();
XPathMessageContext context = new XPathMessageContext();
queryCollection.Add(new XPathMessageQuery(xpath, context));
queryCollection.Add(new XPathMessageQuery(xpath2, context));
queryCollection.Add(new XPathMessageQuery(xpath3, context));
queryCollection.Add(new XPathMessageQuery(xpath4, context));
queryCollection.Add(new XPathMessageQuery(xpath5, context));
queryCollection.Add(new XPathMessageQuery(xpath6, context));
queryCollection.Add(new XPathMessageQuery(xpath7, context));
queryCollection.Add(new XPathMessageQuery(xpath8, context));
queryCollection.Add(new XPathMessageQuery(xpath9, context));
queryCollection.Add(new XPathMessageQuery(xpath10, context));
queryCollection.Add(new XPathMessageQuery(xpath11, context));
return queryCollection;
}
public static MessageQueryTable<string> SetupTable()
{
// This is optional code to demonstrate using a MessageQueryTable.
// Compare this to the MessageQueryCollection.
MessageQueryTable<string> table = new MessageQueryTable<string>();
XPathMessageContext context = new XPathMessageContext();
// The code adds a KeyValuePair to the table. Each pair requires
// a query used as the Key, and a value that is paired to the key.
table.Add(new XPathMessageQuery(xpath, context), "value10");
table.Add(new XPathMessageQuery(xpath2, context), "value20");
table.Add(new XPathMessageQuery(xpath3, context), "value30");
table.Add(new XPathMessageQuery(xpath4, context), "value40");
table.Add(new XPathMessageQuery(xpath5, context), "value50");
table.Add(new XPathMessageQuery(xpath6, context), "value60");
table.Add(new XPathMessageQuery(xpath7, context), "value70");
table.Add(new XPathMessageQuery(xpath8, context), "value80");
table.Add(new XPathMessageQuery(xpath9, context), "value90");
table.Add(new XPathMessageQuery(xpath10, context), "value100");
table.Add(new XPathMessageQuery(xpath11, context), "value110");
return table;
}
}
}
Imports System.IO
Imports System.Xml
Imports System.ServiceModel.Dispatcher
Imports System.ServiceModel
Imports System.ServiceModel.Channels
Imports System.Xml.XPath
Namespace MessageQueryExamples
Public Class Program
Public Shared Sub Main(ByVal args As String())
' The XPathMessageQueryCollection inherits from MessageQueryCollection.
Dim queryCollection As XPathMessageQueryCollection = MessageHelper.SetupQueryCollection()
' Create a message and a copy of the message. You must create a buffered copy to access the message body.
Dim mess As Message = MessageHelper.CreateMessage()
Dim mb As MessageBuffer = mess.CreateBufferedCopy(Integer.MaxValue)
' Evaluate every query in the collection.
Dim q As XPathMessageQuery
For Each q In queryCollection
' Evaluate the query. Note the result type is an XPathResult.
Dim qPathResult As XPathResult = q.Evaluate(Of XPathResult)(mb)
' Use the XPathResult to determine the result type.
Console.WriteLine("Result type: {0}", qPathResult.ResultType)
' The following code prints the result according to the result type.
If qPathResult.ResultType = XPathResultType.String Then
Console.WriteLine("{0} = {1}", q.Expression, qPathResult.GetResultAsString())
End If
If (qPathResult.ResultType = XPathResultType.NodeSet) Then
' Iterate through the node set.
Dim ns As XPathNodeIterator = qPathResult.GetResultAsNodeset()
Dim n As XPathNavigator
For Each n In ns
Console.WriteLine(" {0} = {1}", q.Expression, n.Value)
Next
End If
If qPathResult.ResultType = XPathResultType.Number Then
Console.WriteLine(" {0} = {1}", q.Expression, qPathResult.GetResultAsNumber())
End If
If qPathResult.ResultType = XPathResultType.Boolean Then
Console.WriteLine(" {0} ={1}", q.Expression, qPathResult.GetResultAsBoolean())
End If
If qPathResult.ResultType = XPathResultType.Error Then
Console.WriteLine(" Error!")
End If
Next
Console.WriteLine()
' The alternate code below demonstrates similar funcionality using a MessageQueryTable.
' The difference is the KeyValuePair that requires a key to index each value.
' The code uses the expression as the key, and an arbitrary value for the value.
'Dim mq As MessageQueryTable(Of String) = MessageHelper.SetupTable()
'Dim kv As KeyValuePair(Of MessageQuery, String)
'For Each kv In mq
' '
' Dim xp As XPathMessageQuery = CType(kv.Key, XPathMessageQuery)
' Console.WriteLine("Value = {0}", kv.Value)
' Console.WriteLine("{0} = {1}", xp.Expression, xp.Evaluate(Of String)(mb))
'Next
Console.ReadLine()
End Sub
Private Shared Sub Evaluate(ByVal p1 As Object)
Throw New NotImplementedException
End Sub
End Class
Public Class MessageHelper
Shared messageBody As String = _
"<PurchaseOrder date='today'>" + _
"<Number>ABC-2009-XYZ</Number>" + _
"<Department>OnlineSales</Department>" + _
"<Items>" + _
"<Item product='nail' quantity='1'>item1</Item>" + _
"<Item product='screw' quantity='2'>item2</Item>" + _
"<Item product='brad' quantity='3'>" + _
"<SpecialOffer/>" + _
"Special item4" + _
"</Item>" + _
"<Item product='SpecialNails' quantity='9'>item5</Item>" + _
"<Item product='SpecialBrads' quantity='11'>" + _
"<SpecialOffer/>" + _
"Special item6" + _
"</Item>" + _
"<Item product='hammer' quantity='1'>item7</Item>" + _
"<Item product='wrench' quantity='2'>item8</Item>" + _
"</Items>" + _
"<Comments>" + _
"Rush order" + _
"</Comments>" + _
"</PurchaseOrder>"
Public Shared xpath As String = "/s12:Envelope/s12:Body/PurchaseOrder/Items/Item[@quantity = 1]"
Public Shared xpath2 As String = "/s12:Envelope/s12:Body/PurchaseOrder/Items/Item[@product = 'nail']"
Public Shared xpath3 As String = "/s12:Envelope/s12:Body/PurchaseOrder/Comments"
Public Shared xpath4 As String = "count(/s12:Envelope/s12:Body/PurchaseOrder/Items/Item)"
Public Shared xpath5 As String = "substring(string(/s12:Envelope/s12:Body/PurchaseOrder/Number),5,4)"
Public Shared xpath6 As String = "/s12:Envelope/s12:Body/PurchaseOrder/Department='OnlineSales'"
Public Shared xpath7 As String = "//PurchaseOrder/@date"
Public Shared xpath8 As String = "//SpecialOffer/ancestor::Item[@product = 'brad']"
' Invoke the correlation data function.
Public Shared xpath9 As String = "sm:correlation-data('CorrelationData1')"
Public Shared xpath10 As String = "sm:correlation-data('CorrelationData2')"
Public Shared xpath11 As String = "/s12:Envelope/s12:Body/PurchaseOrder/Items/Item[@quantity = 2]"
Public Shared Function CreateMessage() As Message
Dim stringReader As New StringReader(messageBody)
Dim xmlReader As New XmlTextReader(stringReader)
Dim message As Message = message.CreateMessage( _
MessageVersion.Soap12WSAddressing10, "http://purchaseorder", xmlReader)
' Add two correlation properties using lambda expressions. The property names are
' CorrelationData1 and CorrelationData2. The first goes to "value1" and the
' second to "value2". You can use your own property names and values.
Dim data As New CorrelationDataMessageProperty()
data.Add("CorrelationData1", Function() "value1")
data.Add("CorrelationData2", Function() "value2")
message.Properties(CorrelationDataMessageProperty.Name) = data
Return message
End Function
Public Shared Function SetupQueryCollection() As XPathMessageQueryCollection
' Create the query collection and add the XPath queries to it. To create
' the query, you must also use a new XPathMessageContext.
Dim queryCollection As New XPathMessageQueryCollection()
Dim context As XPathMessageContext = New XPathMessageContext()
queryCollection.Add(New XPathMessageQuery(xpath, context))
queryCollection.Add(New XPathMessageQuery(xpath2, context))
queryCollection.Add(New XPathMessageQuery(xpath3, context))
queryCollection.Add(New XPathMessageQuery(xpath4, context))
queryCollection.Add(New XPathMessageQuery(xpath5, context))
queryCollection.Add(New XPathMessageQuery(xpath6, context))
queryCollection.Add(New XPathMessageQuery(xpath7, context))
queryCollection.Add(New XPathMessageQuery(xpath8, context))
queryCollection.Add(New XPathMessageQuery(xpath9, context))
queryCollection.Add(New XPathMessageQuery(xpath10, context))
queryCollection.Add(New XPathMessageQuery(xpath11, context))
Return queryCollection
End Function
Public Shared Function SetupTable() As MessageQueryTable(Of String)
' This is optional code to demonstrate using a MessageQueryTable.
' Compare this to the MessageQueryCollection.
Dim table As MessageQueryTable(Of String) = New MessageQueryTable(Of String)()
Dim context As XPathMessageContext = New XPathMessageContext()
' The code adds a KeyValuePair to the table. Each pair requires
' a query used as the Key, and a value that is paired to the key.
table.Add(New XPathMessageQuery(xpath, context), "value10")
table.Add(New XPathMessageQuery(xpath2, context), "value20")
table.Add(New XPathMessageQuery(xpath3, context), "value30")
table.Add(New XPathMessageQuery(xpath4, context), "value40")
table.Add(New XPathMessageQuery(xpath5, context), "value50")
table.Add(New XPathMessageQuery(xpath6, context), "value60")
table.Add(New XPathMessageQuery(xpath7, context), "value70")
table.Add(New XPathMessageQuery(xpath8, context), "value80")
table.Add(New XPathMessageQuery(xpath9, context), "value90")
table.Add(New XPathMessageQuery(xpath10, context), "value100")
table.Add(New XPathMessageQuery(xpath11, context), "value110")
Return table
End Function
End Class
End Namespace
コンストラクター
| MessageQueryTable<TItem>() |
MessageQueryTable<TItem> クラスの新しいインスタンスを初期化します。 |
プロパティ
| Count |
テーブル内のクエリとデータのペアの数を取得します。 |
| IsReadOnly |
テーブルが読み取り専用かどうかを示す値を取得します。 |
| Item[MessageQuery] |
データ型に関連付けられたクエリ オブジェクトを取得または設定します。 |
| Keys |
テーブルに含まれるすべてのコレクション キーのコレクションを返します。 |
| Values |
テーブルに含まれる結果値のコレクションを取得します。 |
メソッド
| Add(KeyValuePair<MessageQuery,TItem>) |
キーと値のペアとして定義された項目を追加します。 |
| Add(MessageQuery, TItem) |
キー/値システムを使用してコレクションに項目を追加します。 |
| Clear() |
コレクションからすべてのメンバーを削除します。 |
| Contains(KeyValuePair<MessageQuery,TItem>) |
キー/値構造として書式設定された特定の項目がコレクションに含まれているかどうかを判断します。 |
| ContainsKey(MessageQuery) |
指定したキーを持つ要素がコレクションに含まれているかどうかを判断します。 |
| CopyTo(KeyValuePair<MessageQuery,TItem>[], Int32) |
コレクションの要素を、指定したインデックスから始まる Arrayにコピーします。 |
| Equals(Object) |
指定したオブジェクトが現在のオブジェクトと等しいかどうかを判断します。 (継承元 Object) |
| Evaluate<TResult>(Message) |
メッセージに対してクエリを実行し、結果のコレクションを返します。 本文を照会できません。 |
| Evaluate<TResult>(MessageBuffer) |
メッセージに対してクエリを実行し、結果を返します。 |
| GetEnumerator() |
コレクションを反復処理する列挙子を返します。 |
| GetHashCode() |
既定のハッシュ関数として機能します。 (継承元 Object) |
| GetType() |
現在のインスタンスの Type を取得します。 (継承元 Object) |
| MemberwiseClone() |
現在の Objectの簡易コピーを作成します。 (継承元 Object) |
| Remove(KeyValuePair<MessageQuery,TItem>) |
指定したオブジェクトの最初の出現箇所をコレクションから削除します。 |
| Remove(MessageQuery) |
指定したキーに関連付けられている項目をコレクションから削除します。 |
| ToString() |
現在のオブジェクトを表す文字列を返します。 (継承元 Object) |
| TryGetValue(MessageQuery, TItem) |
一致するクエリがテーブルに格納されているかどうかを確認します。 |
明示的なインターフェイスの実装
| IEnumerable.GetEnumerator() |
コレクションを反復処理するために使用できる列挙子を返します。 |
拡張メソッド
適用対象
GitHub で Microsoft と共同作業する
このコンテンツのソースは GitHub にあります。そこで、issue や pull request を作成および確認することもできます。 詳細については、共同作成者ガイドを参照してください。
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