MessageQueueInstaller Class

Definition

Namespace:

System.Messaging

Assembly:

System.Messaging.dll

Allows you to install and configure a queue that your application needs in order to run. This class is called by the installation utility, for example, InstallUtil.exe, when installing a MessageQueue.

public ref class MessageQueueInstaller : System::Configuration::Install::ComponentInstaller

public class MessageQueueInstaller : System.Configuration.Install.ComponentInstaller

type MessageQueueInstaller = class
    inherit ComponentInstaller

Public Class MessageQueueInstaller
Inherits ComponentInstaller

Inheritance

Object

MarshalByRefObject

Component

Installer

ComponentInstaller

MessageQueueInstaller

Remarks

The MessageQueueInstaller is used by the installation utility to write registry values that are associated with the queue. For more information about installation utilities, see Installutil.exe (Installer Tool).

To install a queue, create a project installer class that inherits from the Installer, and set the RunInstallerAttribute for the class to true. Within your project, create a MessageQueueInstaller instance for each queue in the installation and add the instance to your project installer class.

When creating a MessageQueueInstaller instance, you can optionally pass an existing MessageQueue (for example, from a test server) to the MessageQueueInstaller constructor. This approach automatically provides the configuration settings for the new queue by mirroring the settings of the queue passed in. Alternatively, you can manually set the properties in the MessageQueueInstaller instance to the states you want and call the parameterless constructor.

When the install utility is called, it looks for the RunInstallerAttribute. If it is true, the utility installs all the queues in the Installers collection associated with your project installer. If RunInstallerAttribute is false, the utility ignores the project installer.

You modify other properties of a MessageQueueInstaller instance either before or after adding the instance to the Installers collection of your project installer. For example, a queue's Path must be set before the install utility executes.

Typically, you do not call the methods of the MessageQueueInstaller from within your code; they are generally called only by the installutil.exe installation utility. The utility automatically calls the Install method during the installation process and calls Commit if the installation did not throw an exception. It backs out failures, if necessary, by calling Rollback for the object that generated the exception.

An application's install routine uses the project installer's Installer.Context to automatically maintain information about the components that have already been installed. This state information is continuously updated as each MessageQueueInstaller instance is installed by the utility. It is not usually necessary for your code to explicitly modify the state information.

Constructors

MessageQueueInstaller()	Initializes a new instance of the MessageQueueInstaller class. Does not set any instance properties.
MessageQueueInstaller(MessageQueue)	Initializes a new instance of the MessageQueueInstaller class, initializing the installation settings to those of an existing MessageQueue instance.

Properties

Authenticate	Gets or sets a value that indicates whether the queue to be installed accepts only authenticated messages.
BasePriority	Gets or sets the base priority that is used to route a public queue's messages over the network.
CanRaiseEvents	Gets a value indicating whether the component can raise an event. (Inherited from Component)
Category	Gets or sets an implementation-specific queue type.
Container	Gets the IContainer that contains the Component. (Inherited from Component)
Context	Gets or sets information about the current installation. (Inherited from Installer)
DesignMode	Gets a value that indicates whether the Component is currently in design mode. (Inherited from Component)
EncryptionRequired	Gets or sets a value that indicates whether the queue accepts only private, or encrypted, messages.
Events	Gets the list of event handlers that are attached to this Component. (Inherited from Component)
HelpText	Gets the help text for all the installers in the installer collection. (Inherited from Installer)
Installers	Gets the collection of installers that this installer contains. (Inherited from Installer)
Label	Gets or sets a description of the queue.
MaximumJournalSize	Gets or sets the maximum size of the journal that is associated with the queue.
MaximumQueueSize	Gets or sets the maximum size of the queue.
MulticastAddress	Introduced in MSMQ 3.0. Gets or sets the multicast address associated with the queue.
Parent	Gets or sets the installer containing the collection that this installer belongs to. (Inherited from Installer)
Path	Gets or sets the location of the queue that is referenced by this object.
Permissions	Gets or sets permissions associated with the queue.
Site	Gets or sets the ISite of the Component. (Inherited from Component)
Transactional	Gets or sets a value that indicates whether the queue accepts only messages sent as part of a transaction.
UninstallAction	Gets or sets a value that indicates what the installer does with the queue at uninstall time: remove it, restore it to its pre-installation state, or leave it in its current installed state.
UseJournalQueue	Gets or sets a value that indicates whether messages that are retrieved from the queue are also copied to the associated journal queue.

Methods

Commit(IDictionary)	Completes the installation process by committing the MessageQueue installation information that the Install(IDictionary) method wrote to the registry. This method is meant to be used by installation tools, which automatically call the appropriate methods.
CopyFromComponent(IComponent)	Copies the property values of a MessageQueue component that are required at install time for a message queue.
CreateObjRef(Type)	Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object. (Inherited from MarshalByRefObject)
Dispose()	Releases all resources used by the Component. (Inherited from Component)
Dispose(Boolean)	Releases the unmanaged resources used by the Component and optionally releases the managed resources. (Inherited from Component)
Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetLifetimeService()	Retrieves the current lifetime service object that controls the lifetime policy for this instance. (Inherited from MarshalByRefObject)
GetService(Type)	Returns an object that represents a service provided by the Component or by its Container. (Inherited from Component)
GetType()	Gets the Type of the current instance. (Inherited from Object)
InitializeLifetimeService()	Obtains a lifetime service object to control the lifetime policy for this instance. (Inherited from MarshalByRefObject)
Install(IDictionary)	Performs the installation and writes message queue information to the registry. This method is meant to be used by installation tools, which automatically call the appropriate methods.
IsEquivalentInstaller(ComponentInstaller)	Determines whether the specified installer can handle the same kind of installation as this installer.
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
MemberwiseClone(Boolean)	Creates a shallow copy of the current MarshalByRefObject object. (Inherited from MarshalByRefObject)
OnAfterInstall(IDictionary)	Raises the AfterInstall event. (Inherited from Installer)
OnAfterRollback(IDictionary)	Raises the AfterRollback event. (Inherited from Installer)
OnAfterUninstall(IDictionary)	Raises the AfterUninstall event. (Inherited from Installer)
OnBeforeInstall(IDictionary)	Raises the BeforeInstall event. (Inherited from Installer)
OnBeforeRollback(IDictionary)	Raises the BeforeRollback event. (Inherited from Installer)
OnBeforeUninstall(IDictionary)	Raises the BeforeUninstall event. (Inherited from Installer)
OnCommitted(IDictionary)	Raises the Committed event. (Inherited from Installer)
OnCommitting(IDictionary)	Raises the Committing event. (Inherited from Installer)
Rollback(IDictionary)	Restores the computer to the state it was in before the installation, by rolling back the queue information that the installation procedure wrote to the registry. This method is meant to be used by installation tools, which automatically call the appropriate methods.
ToString()	Returns a String containing the name of the Component, if any. This method should not be overridden. (Inherited from Component)
Uninstall(IDictionary)	Removes an installation by removing queue information from the registry. This method is meant to be used by uninstallation tools, which automatically call the appropriate methods.

Events

AfterInstall	Occurs after the Install(IDictionary) methods of all the installers in the Installers property have run. (Inherited from Installer)
AfterRollback	Occurs after the installations of all the installers in the Installers property are rolled back. (Inherited from Installer)
AfterUninstall	Occurs after all the installers in the Installers property perform their uninstallation operations. (Inherited from Installer)
BeforeInstall	Occurs before the Install(IDictionary) method of each installer in the installer collection has run. (Inherited from Installer)
BeforeRollback	Occurs before the installers in the Installers property are rolled back. (Inherited from Installer)
BeforeUninstall	Occurs before the installers in the Installers property perform their uninstall operations. (Inherited from Installer)
Committed	Occurs after all the installers in the Installers property have committed their installations. (Inherited from Installer)
Committing	Occurs before the installers in the Installers property commit their installations. (Inherited from Installer)
Disposed	Occurs when the component is disposed by a call to the Dispose() method. (Inherited from Component)

See also

• Installutil.exe (Installer Tool)