MessageQueuePermissionAttribute クラスとは？ わかりやすく解説

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MessageQueuePermissionAttribute クラス

宣言 MessageQueue のアクセス許可をチェックできるようにします。

名前空間: System.Messaging
アセンブリ: System.Messaging (system.messaging.dll 内)
構文構文

Visual Basic (宣言)
<SerializableAttribute> _
<AttributeUsageAttribute(AttributeTargets.Assembly Or AttributeTargets.Class
 Or AttributeTargets.Struct Or AttributeTargets.Constructor
 Or AttributeTargets.Method Or AttributeTargets.Event, AllowMultiple:=True, Inherited:=False)> _
Public Class MessageQueuePermissionAttribute
    Inherits CodeAccessSecurityAttribute
Visual Basic (使用法)
Dim instance As MessageQueuePermissionAttribute
C#
[SerializableAttribute] 
[AttributeUsageAttribute(AttributeTargets.Assembly|AttributeTargets.Class|AttributeTargets.Struct|AttributeTargets.Constructor|AttributeTargets.Method|AttributeTargets.Event,
 AllowMultiple=true, Inherited=false)] 
public class MessageQueuePermissionAttribute
 : CodeAccessSecurityAttribute
C++
[SerializableAttribute] 
[AttributeUsageAttribute(AttributeTargets::Assembly|AttributeTargets::Class|AttributeTargets::Struct|AttributeTargets::Constructor|AttributeTargets::Method|AttributeTargets::Event,
 AllowMultiple=true, Inherited=false)] 
public ref class MessageQueuePermissionAttribute
 : public CodeAccessSecurityAttribute
J#
/** @attribute SerializableAttribute() */ 
/** @attribute AttributeUsageAttribute(AttributeTargets.Assembly|AttributeTargets.Class|AttributeTargets.Struct|AttributeTargets.Constructor|AttributeTargets.Method|AttributeTargets.Event,
 AllowMultiple=true, Inherited=false) */ 
public class MessageQueuePermissionAttribute
 extends CodeAccessSecurityAttribute
JScript
SerializableAttribute 
AttributeUsageAttribute(AttributeTargets.Assembly|AttributeTargets.Class|AttributeTargets.Struct|AttributeTargets.Constructor|AttributeTargets.Method|AttributeTargets.Event,
 AllowMultiple=true, Inherited=false) 
public class MessageQueuePermissionAttribute
 extends CodeAccessSecurityAttribute
解説解説

属性の使用方法については、「属性を使用したメタデータの拡張」を参照してください。

使用例使用例

MessageQueuePermissionAttribute を使用するコード例を次に示します。

C#
using System;
using System.Messaging;

public class MessageQueuePermissionAttributeExample
{
    public static void Main()
    {
        // Create a new instance of the class.
        MessageQueuePermissionAttributeExample example =
            new MessageQueuePermissionAttributeExample();

        // Create a non-transactional queue on the local computer.
        CreateQueue(".\\exampleQueue", false);

        // Demonstrate the members of MessageQueuePermissionAttribute.
        // Note that the Path, FormatName, MachineName, Label, and Category
        // property values cannot all be set on the same instance of
        // MessageQueuePermissionAttribute. Trying to do so will throw
 an
        // exception of type System.InvalidOperationException.
        example.CreateAttribute();
        example.CategoryExample();
        example.LabelExample();
        example.MachineNameExample();
        example.PathExample();
        example.PermissionAccessExample();
        example.CreatePermissionExample();
    }

    // Creates a new queue.
    public static void CreateQueue(string
 queuePath, bool transactional)
    {
        if(!MessageQueue.Exists(queuePath))
        {
            MessageQueue.Create(queuePath, transactional);
        }
        else
        {
            Console.WriteLine(queuePath + " already exists.");
        }
    }

    // Demonstrates the following MessageQueuePermissionAttribute constructor:
    // public #ctor (SecurityAction action)
    public void CreateAttribute()
    {

        // Create a new instance of MessageQueuePermissionAttribute.
        MessageQueuePermissionAttribute attribute =
            new MessageQueuePermissionAttribute(
            System.Security.Permissions.SecurityAction.Assert);

    }

    public void CategoryExample()
    {

        // Connect to a queue on the local computer.
        MessageQueue queue = new MessageQueue(".\\exampleQueue");

        // Create a new instance of MessageQueuePermissionAttribute.
        MessageQueuePermissionAttribute attribute =
            new MessageQueuePermissionAttribute(
            System.Security.Permissions.SecurityAction.Assert);

        // Set the attribute's Category property value, based on the
 queue's
        // Category property value.
        attribute.Category = queue.Category.ToString();

        // Display the new value of the attribute's Category property.
        Console.WriteLine("attribute.Category: {0}",
            attribute.Category.ToString());

    }

    public void LabelExample()
    {

        // Connect to a queue on the local computer.
        MessageQueue queue = new MessageQueue(".\\exampleQueue");

        // Create a new instance of MessageQueuePermissionAttribute.
        MessageQueuePermissionAttribute attribute =
            new MessageQueuePermissionAttribute(
            System.Security.Permissions.SecurityAction.Assert);

        // Set the attribute's Label property value, based on the queue's
 Label
        // property value.
        attribute.Label = queue.Label;

        // Display the new value of the attribute's Label property.
        Console.WriteLine("attribute.Label: {0}", attribute.Label);

    }

    public void MachineNameExample()
    {

        // Connect to a queue on the local computer.
        MessageQueue queue = new MessageQueue(".\\exampleQueue");

        // Create a new instance of MessageQueuePermissionAttribute.
        MessageQueuePermissionAttribute attribute =
            new MessageQueuePermissionAttribute(
            System.Security.Permissions.SecurityAction.Assert);

        // Set the attribute's MachineName property value, based on
 the queue's
        // MachineName property value.
        attribute.MachineName = queue.MachineName;

        // Display the new value of the attribute's MachineName property.
        Console.WriteLine("attribute.MachineName: {0}",
            attribute.MachineName);

    }

    public void PathExample()
    {

        // Connect to a queue on the local computer.
        MessageQueue queue = new MessageQueue(".\\exampleQueue");

        // Create a new instance of MessageQueuePermissionAttribute.
        MessageQueuePermissionAttribute attribute =
            new MessageQueuePermissionAttribute(
            System.Security.Permissions.SecurityAction.Assert);

        // Set the attribute's Path property value, based on the queue's
 Path
        // property value.
        attribute.Path = queue.Path;

        // Display the new value of the attribute's Path property.
        Console.WriteLine("attribute.Path: {0}", attribute.Path);

    }

    public void PermissionAccessExample()
    {

        // Connect to a queue on the local computer.
        MessageQueue queue = new MessageQueue(".\\exampleQueue");

        // Create a new instance of MessageQueuePermissionAttribute.
        MessageQueuePermissionAttribute attribute =
            new MessageQueuePermissionAttribute(
            System.Security.Permissions.SecurityAction.Assert);

        // Set the attribute's PermissionAccess property value.
        attribute.PermissionAccess = MessageQueuePermissionAccess.Receive;

        // Display the new value of the attribute's PermissionAccess
 property.
        Console.WriteLine("attribute.PermissionAccess: {0}",
            attribute.PermissionAccess);

    }

    public void CreatePermissionExample()
    {

        // Connect to a queue on the local computer.
        MessageQueue queue = new MessageQueue(".\\exampleQueue");

        // Create a new instance of MessageQueuePermissionAttribute.
        MessageQueuePermissionAttribute attribute =
            new MessageQueuePermissionAttribute(
            System.Security.Permissions.SecurityAction.Assert);

        // Set the attribute's Path property value, based on the queue's
 Path
        // property value.
        attribute.Path = queue.Path;

        // Get an IPermission interface by calling the attribute's
        // CreatePermission() method.
        System.Security.IPermission permission = attribute.CreatePermission();

    }
}
C++
#using <System.Messaging.dll>
#using <System.dll>

using namespace System;
using namespace System::Messaging;

// Creates a new queue.
void CreateQueue(String^ queuePath, bool transactional)
{
    if (!MessageQueue::Exists(queuePath))
    {
        MessageQueue^ queue = MessageQueue::Create(queuePath, transactional);
        queue->Close();       
    }
    else
    {
        Console::WriteLine("{0} already exists.", queuePath);
    }
}

// Demonstrates the following MessageQueuePermissionAttribute constructor:
// public #ctor (SecurityAction action)
void CreateAttribute()
{

    // Create a new instance of MessageQueuePermissionAttribute.
    MessageQueuePermissionAttribute^ attribute =
        gcnew MessageQueuePermissionAttribute(
        System::Security::Permissions::SecurityAction::Assert);

}


void CategoryExample()
{

    // Connect to a queue on the local computer.
    MessageQueue^ queue = gcnew MessageQueue(".\\exampleQueue");

    // Create a new instance of MessageQueuePermissionAttribute.
    MessageQueuePermissionAttribute^ attribute =
        gcnew MessageQueuePermissionAttribute(
        System::Security::Permissions::SecurityAction::Assert);

    // Set the attribute's Category property value, based on the queue's
    // Category property value.
    attribute->Category = queue->Category.ToString();

    // Display the new value of the attribute's Category property.
    Console::WriteLine("attribute->Category: {0}",
        attribute->Category);

    queue->Close();
}

void LabelExample()
{

    // Connect to a queue on the local computer.
    MessageQueue^ queue = gcnew MessageQueue(".\\exampleQueue");

    // Create a new instance of MessageQueuePermissionAttribute.
    MessageQueuePermissionAttribute^ attribute =
        gcnew MessageQueuePermissionAttribute(
        System::Security::Permissions::SecurityAction::Assert);

    // Set the attribute's Label property value, based on the queue's
 Label
    // property value.
    attribute->Label = queue->Label;

    // Display the new value of the attribute's Label property.
    Console::WriteLine("attribute->Label: {0}", attribute->Label);

    queue->Close();
}


void MachineNameExample()
{

    // Connect to a queue on the local computer.
    MessageQueue^ queue = gcnew MessageQueue(".\\exampleQueue");

    // Create a new instance of MessageQueuePermissionAttribute.
    MessageQueuePermissionAttribute^ attribute =
        gcnew MessageQueuePermissionAttribute(
        System::Security::Permissions::SecurityAction::Assert);

    // Set the attribute's MachineName property value, based on the
 queue's
    // MachineName property value.
    attribute->MachineName = queue->MachineName;

    // Display the new value of the attribute's MachineName property.
    Console::WriteLine("attribute->MachineName: {0}",
        attribute->MachineName);

    queue->Close();
}

void PathExample()
{

    // Connect to a queue on the local computer.
    MessageQueue^ queue = gcnew MessageQueue(".\\exampleQueue");

    // Create a new instance of MessageQueuePermissionAttribute.
    MessageQueuePermissionAttribute^ attribute =
        gcnew MessageQueuePermissionAttribute(
        System::Security::Permissions::SecurityAction::Assert);

    // Set the attribute's Path property value, based on the queue's
 Path
    // property value.
    attribute->Path = queue->Path;

    // Display the new value of the attribute's Path property.
    Console::WriteLine("attribute->Path: {0}", attribute->Path);

    queue->Close();
}

void PermissionAccessExample()
{

    // Connect to a queue on the local computer.
    MessageQueue^ queue = gcnew MessageQueue(".\\exampleQueue");

    // Create a new instance of MessageQueuePermissionAttribute.
    MessageQueuePermissionAttribute^ attribute =
        gcnew MessageQueuePermissionAttribute(
        System::Security::Permissions::SecurityAction::Assert);

    // Set the attribute's PermissionAccess property value.
    attribute->PermissionAccess = MessageQueuePermissionAccess::Receive;

    // Display the new value of the attribute's PermissionAccess property.
    Console::WriteLine("attribute->PermissionAccess: {0}",
        attribute->PermissionAccess);

    queue->Close();
}

void CreatePermissionExample()
{

    // Connect to a queue on the local computer.
    MessageQueue^ queue = gcnew MessageQueue(".\\exampleQueue");

    // Create a new instance of MessageQueuePermissionAttribute.
    MessageQueuePermissionAttribute^ attribute =
        gcnew MessageQueuePermissionAttribute(
        System::Security::Permissions::SecurityAction::Assert);

    // Set the attribute's Path property value, based on the queue's
 Path
    // property value.
    attribute->Path = queue->Path;

    // Get an IPermission interface by calling the attribute's
    // CreatePermission() method.
    System::Security::IPermission^ permission = attribute->CreatePermission();

    queue->Close();
}

int main()
{
    try
    {

        // Create a non-transactional queue on the local computer.
        CreateQueue(".\\exampleQueue", false);

        // Demonstrate the members of MessageQueuePermissionAttribute.
        // Note that the Path, FormatName, MachineName, Label, and Category
        // property values cannot all be set on the same instance of
        // MessageQueuePermissionAttribute. Trying to do so will throw
 an
        // exception of type System.InvalidOperationException.

        CreateAttribute();
        CategoryExample();
        LabelExample();
        MachineNameExample();
        PathExample();
        PermissionAccessExample();
        CreatePermissionExample();
    }

    catch (InvalidOperationException^)
    {
        Console::WriteLine("Please install Message Queuing.");
    }

    catch (MessageQueueException^ ex)
    {
        Console::WriteLine(ex->Message);
    }
}
J#
import System.*;
import System.Messaging.*;

public class MessageQueuePermissionAttributeExample
{
    public static void main(String[]
 args)
    {
        // Create a new instance of the class.
        MessageQueuePermissionAttributeExample example =
            new MessageQueuePermissionAttributeExample();
        // Create a non-transactional queue on the local computer.
        CreateQueue(".\\exampleQueue", false);
        // Demonstrate the members of MessageQueuePermissionAttribute.
        // Note that the Path, FormatName, MachineName, Label, and Category
        // property values cannot all be set on the same instance of
        // MessageQueuePermissionAttribute. Trying to do so will throw
 an
        // exception of type System.InvalidOperationException.
        example.CreateAttribute();
        example.CategoryExample();
        example.LabelExample();
        example.MachineNameExample();
        example.PathExample();
        example.PermissionAccessExample();
        example.CreatePermissionExample();
    } //main

    // Creates a new queue.
    public static void CreateQueue(String
 queuePath, boolean transactional)
    {
        if (!(MessageQueue.Exists(queuePath))) {
            MessageQueue.Create(queuePath, transactional);
        }
        else {
            Console.WriteLine(queuePath + " already exists.");
        }
    } //CreateQueue

    // Demonstrates the following MessageQueuePermissionAttribute constructor:
    // public #ctor (SecurityAction action)
    public void CreateAttribute()
    {
        // Create a new instance of MessageQueuePermissionAttribute.
        MessageQueuePermissionAttribute attribute =
            new MessageQueuePermissionAttribute(
            System.Security.Permissions.SecurityAction.Assert);
    } //CreateAttribute
    
    public void CategoryExample()
    {
        // Connect to a queue on the local computer.
        MessageQueue queue = new MessageQueue(".\\exampleQueue");
        // Create a new instance of MessageQueuePermissionAttribute.
        MessageQueuePermissionAttribute attribute =
            new MessageQueuePermissionAttribute(System.Security.Permissions.
            SecurityAction.Assert);
        // Set the attribute's Category property value, based on the
 queue's
        // Category property value.
        attribute.set_Category(queue.get_Category().ToString());
        // Display the new value of the attribute's Category property.
        Console.WriteLine("attribute.Category: {0}",
            attribute.get_Category().ToString());
    } //CategoryExample
    
    public void LabelExample()
    {
        // Connect to a queue on the local computer.
        MessageQueue queue = new MessageQueue(".\\exampleQueue");
        // Create a new instance of MessageQueuePermissionAttribute.
        MessageQueuePermissionAttribute attribute =
            new MessageQueuePermissionAttribute(
            System.Security.Permissions.SecurityAction.Assert);
        // Set the attribute's Label property value, based on the queue's
 Label
        // property value.
        attribute.set_Label(queue.get_Label());
        // Display the new value of the attribute's Label property.
        Console.WriteLine("attribute.Label: {0}", attribute.get_Label());
    } //LabelExample
    
    public void MachineNameExample()
    {
        // Connect to a queue on the local computer.
        MessageQueue queue = new MessageQueue(".\\exampleQueue");
        // Create a new instance of MessageQueuePermissionAttribute.
        MessageQueuePermissionAttribute attribute =
            new MessageQueuePermissionAttribute(
            System.Security.Permissions.SecurityAction.Assert);
        // Set the attribute's MachineName property value, based on
 the queue's
        // MachineName property value.
        attribute.set_MachineName(queue.get_MachineName());
        // Display the new value of the attribute's MachineName property.
        Console.WriteLine("attribute.MachineName: {0}",
            attribute.get_MachineName());
    } //MachineNameExample
    
    public void PathExample()
    {
        // Connect to a queue on the local computer.
        MessageQueue queue = new MessageQueue(".\\exampleQueue");
        // Create a new instance of MessageQueuePermissionAttribute.
        MessageQueuePermissionAttribute attribute =
            new MessageQueuePermissionAttribute(
            System.Security.Permissions.SecurityAction.Assert);
        // Set the attribute's Path property value, based on the queue's
 Path
        // property value.
        attribute.set_Path(queue.get_Path());
        // Display the new value of the attribute's Path property.
        Console.WriteLine("attribute.Path: {0}", attribute.get_Path());
    } //PathExample

    public void PermissionAccessExample()
    {
        // Connect to a queue on the local computer.
        MessageQueue queue = new MessageQueue(".\\exampleQueue");
        // Create a new instance of MessageQueuePermissionAttribute.
        MessageQueuePermissionAttribute attribute =
            new MessageQueuePermissionAttribute(
            System.Security.Permissions.SecurityAction.Assert);
        // Set the attribute's PermissionAccess property value.
        attribute.set_PermissionAccess(MessageQueuePermissionAccess.Receive);
        // Display the new value of the attribute's PermissionAccess
 property.
        Console.WriteLine("attribute.PermissionAccess: {0}",
            attribute.get_PermissionAccess());
    } //PermissionAccessExample
    
    public void CreatePermissionExample()
    {
        // Connect to a queue on the local computer.
        MessageQueue queue = new MessageQueue(".\\exampleQueue");
        // Create a new instance of MessageQueuePermissionAttribute.
        MessageQueuePermissionAttribute attribute =
            new MessageQueuePermissionAttribute(
            System.Security.Permissions.SecurityAction.Assert);
        // Set the attribute's Path property value, based on the queue's
 Path
        // property value.
        attribute.set_Path(queue.get_Path());
        // Get an IPermission interface by calling the attribute's
        // CreatePermission() method.
        System.Security.IPermission permission = attribute.CreatePermission();
    } //CreatePermissionExample 
} //MessageQueuePermissionAttributeExample
継承階層継承階層
System.Object
   System.Attribute
     System.Security.Permissions.SecurityAttribute
       System.Security.Permissions.CodeAccessSecurityAttribute
        System.Messaging.MessageQueuePermissionAttribute
スレッド セーフスレッド セーフ
この型の public static (Visual Basic では Shared) メンバはすべて、スレッド セーフです。インスタンス メンバの場合は、スレッド セーフであるとは限りません。
プラットフォームプラットフォーム

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。

バージョン情報バージョン情報
.NET Framework
サポート対象 : 2.0、1.1、1.0
参照参照
関連項目
MessageQueuePermissionAttribute メンバ
System.Messaging 名前空間
MessageQueue クラス
MessageQueuePermission クラス
MessageQueuePermissionAccess 列挙体
MessageQueuePermissionEntry
MessageQueuePermissionEntryCollection

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「MessageQueuePermissionAttribute クラス」の関連用語

1
MessageQueuePermissionAttribute コンストラクタ
.NET Framework クラス ライブラリ リファレンス
100% |||||

2
MessageQueuePermission プロパティ
.NET Framework クラス ライブラリ リファレンス
78% |||||

3
MessageQueuePermissionAttribute.Category プロパティ
.NET Framework クラス ライブラリ リファレンス
74% |||||

4
MessageQueuePermissionAttribute.CreatePermission メソッド
.NET Framework クラス ライブラリ リファレンス
74% |||||

5
MessageQueuePermissionAttribute.Label プロパティ
.NET Framework クラス ライブラリ リファレンス
74% |||||

6
MessageQueuePermissionAttribute.MachineName プロパティ
.NET Framework クラス ライブラリ リファレンス
74% |||||

7
MessageQueuePermissionAttribute.Path プロパティ
.NET Framework クラス ライブラリ リファレンス
74% |||||

8
MessageQueuePermissionAttribute.PermissionAccess プロパティ
.NET Framework クラス ライブラリ リファレンス
74% |||||

9
MessageQueuePermissionEntry プロパティ
.NET Framework クラス ライブラリ リファレンス
56% |||||

10
MessageQueuePermissionEntryCollection プロパティ
.NET Framework クラス ライブラリ リファレンス
36% |||||

MessageQueuePermissionAttribute クラスのお隣キーワード

MessageQueue.PeekByCorrelationId メソッド

MessageQueue.PeekById メソッド

MessageQueue.PeekByLookupId メソッド

MessageQueue.PeekCompleted イベント

MessageQueuePermission.Copy メソッド

MessageQueuePermissionAccess 列挙体

MessageQueuePermissionAttribute クラス

MessageQueuePermissionAttribute コンストラクタ

MessageQueuePermissionAttribute プロパティ

MessageQueuePermissionAttribute メソッド

MessageQueuePermissionAttribute メンバ

MessageQueuePermissionAttribute.Category プロパティ

MessageQueuePermissionAttribute.CreatePermission メソッド

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