MessageQueue.GetMessageQueueEnumerator メソッド
列挙子オブジェクトを作成し、ネットワーク上のパブリック キューの動的リストを作成します。
オーバーロードの一覧
ネットワーク上のすべてのパブリック キューを列挙するための前方向カーソル セマンティクスをサポートします。
[Visual Basic] Overloads Public Shared Function GetMessageQueueEnumerator() As MessageQueueEnumerator
[C#] public static MessageQueueEnumerator GetMessageQueueEnumerator();
[C++] public: static MessageQueueEnumerator* GetMessageQueueEnumerator();
[JScript] public static function GetMessageQueueEnumerator() : MessageQueueEnumerator;
指定した基準を満たすネットワーク上のすべてのパブリック キューを列挙するための前方向カーソル セマンティクスをサポートします。
[Visual Basic] Overloads Public Shared Function GetMessageQueueEnumerator(MessageQueueCriteria) As MessageQueueEnumerator
[C#] public static MessageQueueEnumerator GetMessageQueueEnumerator(MessageQueueCriteria);
[C++] public: static MessageQueueEnumerator* GetMessageQueueEnumerator(MessageQueueCriteria*);
[JScript] public static function GetMessageQueueEnumerator(MessageQueueCriteria) : MessageQueueEnumerator;
使用例
[Visual Basic, C#, C++] 一連のメッセージ キューを反復処理し、1 日前に作成され、"MyComputer" という名前のコンピュータ上に存在するキューのパスを表示する例を次に示します。
[Visual Basic, C#, C++] メモ ここでは、GetMessageQueueEnumerator のオーバーロード形式のうちの 1 つだけについて、使用例を示します。その他の例については、各オーバーロード形式のトピックを参照してください。
Imports System
Imports System.Messaging
Namespace MyProject
'/ <summary>
'/ Provides a container class for the example.
'/ </summary>
Public Class MyNewQueue
'**************************************************
' Provides an entry point into the application.
'
' This example uses a cursor to step through the
' message queues and list the public queues on the
' network that specify certain criteria.
'**************************************************
Public Shared Sub Main()
' Create a new instance of the class.
Dim myNewQueue As New MyNewQueue()
' Output the count of Lowest priority messages.
myNewQueue.ListPublicQueuesByCriteria()
Return
End Sub 'Main
'**************************************************
' Iterates through message queues and displays the
' path of each queue that was created in the last
' day and that exists on the computer "MyComputer".
'**************************************************
Public Sub ListPublicQueuesByCriteria()
Dim numberQueues As Int32 = 0
' Specify the criteria to filter by.
Dim myCriteria As New MessageQueueCriteria()
myCriteria.MachineName = "MyComputer"
myCriteria.CreatedAfter = DateTime.Now.Subtract(New _
TimeSpan(1, 0, 0, 0))
' Get a cursor into the queues on the network.
Dim myQueueEnumerator As MessageQueueEnumerator = _
MessageQueue.GetMessageQueueEnumerator(myCriteria)
' Move to the next queue and read its path.
While myQueueEnumerator.MoveNext()
' Increase the count if the priority is Lowest.
Console.WriteLine(myQueueEnumerator.Current.Path)
numberQueues += 1
End While
' Handle no queues matching the criteria.
If numberQueues = 0 Then
Console.WriteLine("No queues match the criteria.")
End If
Return
End Sub 'ListPublicQueuesByCriteria
End Class 'MyNewQueue
End Namespace 'MyProject
[C#]
using System;
using System.Messaging;
namespace MyProject
{
/// <summary>
/// Provides a container class for the example.
/// </summary>
public class MyNewQueue
{
//**************************************************
// Provides an entry point into the application.
//
// This example uses a cursor to step through the
// message queues and list the public queues on the
// network that specify certain criteria.
//**************************************************
public static void Main()
{
// Create a new instance of the class.
MyNewQueue myNewQueue = new MyNewQueue();
// Output the count of Lowest priority messages.
myNewQueue.ListPublicQueuesByCriteria();
return;
}
//**************************************************
// Iterates through message queues and displays the
// path of each queue that was created in the last
// day and that exists on the computer "MyComputer".
//**************************************************
public void ListPublicQueuesByCriteria()
{
uint numberQueues = 0;
// Specify the criteria to filter by.
MessageQueueCriteria myCriteria = new
MessageQueueCriteria();
myCriteria.MachineName = "MyComputer";
myCriteria.CreatedAfter = DateTime.Now.Subtract(new
TimeSpan(1,0,0,0));
// Get a cursor into the queues on the network.
MessageQueueEnumerator myQueueEnumerator =
MessageQueue.GetMessageQueueEnumerator(myCriteria);
// Move to the next queue and read its path.
while(myQueueEnumerator.MoveNext())
{
// Increase the count if priority is Lowest.
Console.WriteLine(myQueueEnumerator.Current.Path);
numberQueues++;
}
// Handle no queues matching the criteria.
if (numberQueues == 0)
{
Console.WriteLine("No public queues match criteria.");
}
return;
}
}
}
[C++]
#using <mscorlib.dll>
#using <system.dll>
#using <system.messaging.dll>
using namespace System;
using namespace System::Messaging;
__gc class MyNewQueue
{
// Iterates through message queues and displays the
// path of each queue that was created in the last
// day and that exists on the computer "MyComputer".
public:
void ListPublicQueuesByCriteria()
{
UInt32 numberQueues = 0;
// Specify the criteria to filter by.
MessageQueueCriteria* myCriteria = new MessageQueueCriteria();
myCriteria->MachineName = S"MyComputer";
myCriteria->CreatedAfter = DateTime::Now.Subtract(TimeSpan(1, 0, 0, 0));
// Get a cursor into the queues on the network.
MessageQueueEnumerator* myQueueEnumerator =
MessageQueue::GetMessageQueueEnumerator(myCriteria);
// Move to the next queue and read its path.
while(myQueueEnumerator->MoveNext())
{
// Increase the count if priority is Lowest.
Console::WriteLine(myQueueEnumerator->Current->Path);
numberQueues++;
}
// Handle no queues matching the criteria.
if (numberQueues == 0)
{
Console::WriteLine(S"No public queues match criteria.");
}
return;
}
};
int main()
{
// Create a new instance of the class.
MyNewQueue* myNewQueue = new MyNewQueue();
// Output the count of Lowest priority messages.
myNewQueue->ListPublicQueuesByCriteria();
return 0;
}
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