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MessageQueue.UseJournalQueue Property

.NET Framework 4

Other Versions

Gets or sets a value that indicates whether received messages are copied to the journal queue.

Namespace: System.Messaging
Assembly: System.Messaging (in System.Messaging.dll)

Syntax

C++

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[MessagingDescriptionAttribute("MQ_UseJournalQueue")]
public bool UseJournalQueue { get; set; }

Property Value

Type: System.Boolean
true if messages received from the queue are copied to its journal queue; otherwise, false.

Exceptions

Exception	Condition
MessageQueueException	An error occurred when accessing a Message Queuing method.

Remarks

When the Message Queuing application creates a new application queue, it automatically creates an associated journal queue in the same location. The journal queue is used to track the messages removed from a queue. Setting this property modifies the Message Queuing queue. Therefore, any other MessageQueue instances are affected by the change.

The journal queue does not track messages removed from the queue because their time-to-be-received timer expired, nor does it track messages purged from the queue by using a Message Queuing directory service (Information Store or Active Directory).

Applications cannot send messages to journal queues; they are limited to read-only access of these queues. Furthermore, Message Queuing never removes messages from journal queues. The application using the queue must clear these messages either by receiving them or by purging the queue.

The following table shows whether this property is available in various Workgroup modes.

Workgroup mode	Available
Local computer	Yes
Local computer and direct format name	Yes
Remote computer	No
Remote computer and direct format name	No

Examples

The following code example gets and sets the value of a message queue's UseJournalQueue property.

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// Set the queue's UseJournalQueue property value.
queue.UseJournalQueue = true;

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

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

.NET Framework Security

Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference

MessageQueue Class

System.Messaging Namespace

MaximumJournalSize

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