Microsoft.EnterpriseManagement.Mom Namespace

The Microsoft.EnterpriseManagement.Mom namespace contains general-purpose classes and types for accessing MOM operations data, rules, and computers. Items in this namespace are defined in two separate assemblies:

• Microsoft.Mom.Sdk (in Microsoft.Mom.Sdk.dll)
• MOM.Context (in MOM.Context.dll)

Applications that use classes in this namespace should reference both assemblies.

Security and Access

The classes in the Microsoft.EnterpriseManagement.Mom namespace use console scopes to limit access to operations data in MOM. For more information, see ConsoleScope Class. Console scopes will govern the amount of information visible to custom applications built using the MOM Management Server Class Library, based on the account the application is running under.

 Note   

If you run an MCL application using an account that does not have full access to all the MOM computer groups, many methods and properties will return only the subset of the operations data to which the account has permissions.

The methods on the top-level Administration object will prevent users with very little or no rights in MOM from accessing the objects they would not otherwise be able to see in the MOM consoles. Most of these methods throw an UnauthorizedAccessException when the user account does not have sufficient rights.

Classes

Name	Description
Administration	This is the root administration class that all MOM SDK clients must use.
Alert	The Microsoft.EnterpriseManagement.Mom.Alert class defines a MOM Alert.
AlertColumnNameExpression	The Microsoft.EnterpriseManagement.Mom.Internal.Expression for left-hand side column references in the Microsoft.EnterpriseManagement.Mom.AlertQueryExpression object.
AlertQuery	An Microsoft.EnterpriseManagement.Mom.AlertQuery instance can be used to run a scoped query on the system.
AlertQueryExpression	The QueryExpression used by the Microsoft.EnterpriseManagement.Mom.AlertQuery class.
AlertResolutionState	The AlertResolutionState class represents the sequence of resolution states that are assigned to alerts between their creation and their eventual resolution.
AlertsCollection	Stores a collection of Alert objects.
Attribute	Represents an attribute used to define computer group membership. An attribute is a name-value pair describing a specific characteristic of a computer, hardware component, software, or service. Unlike MOM 2000, computer attributes are not limited to Windows registry entries.
AttributesCollection	Stores a collection of computer discovery attributes.
Computer	This class defines a MOM Computer object.
ComputerColumnNameExpression	The Microsoft.EnterpriseManagement.Mom.Internal.Expression for left-hand side column references in the Microsoft.EnterpriseManagement.Mom.ComputerQueryExpression object.
ComputerGroup	This class defines a MOM ComputerGroup.
ComputerGroupsCollection	Stores a collection of ComputerGroup objects.
ComputerMaintenance	The ComputerMaintenance class is used to place computers in maintenance mode and to return them online again.
ComputerQuery	An Microsoft.EnterpriseManagement.Mom.ComputerQuery instance can be used to run a scoped query for computers in the current MOM Management Group.
ComputerQueryExpression	The ComputerQueryExpression class is used to build advanced queries for retrieving computer information.
ComputersCollection	Stores a collection of Computer objects.
ConsoleScope	The ConsoleScope class represents a console scope that has been created in the MOM Administrator console. Console scopes are used to control a user's access to MOM objects in the Operations Console and the Web Console.
ConsoleScopesCollection	Stores a collection of ConsoleScope objects.
CustomAlert	The CustomAlert class represents alerts that are programmatically added to MOM. Unlike the RuntimeAlert class, the properties of the CustomAlert class are writable.
CustomComputer	This class is for creating and submitting user-defined computer objects to the MOM Management Server.
CustomEvent	This class is for creating and submitting user-defined event objects to the MOM Management Server using the Computer.InsertEvents method.
CustomPerformanceData	The CustomPerformanceData class represents performance data that are programmatically added to MOM. Unlike the RuntimePerformanceData class, the properties of the CustomPerformanceData class are writable.
Event	This class describes a MOM Event.
EventColumnNameExpression	The Microsoft.EnterpriseManagement.Mom.Internal.Expression for left-hand side column references in the Microsoft.EnterpriseManagement.Mom.EventQueryExpression object.
EventQuery	An Microsoft.EnterpriseManagement.Mom.EventQuery instance can be used to run a scoped query for computers in the current MOM Management Group.
EventQueryExpression	The query expression used by the EventQuery class.
EventsCollection	Stores a collection of Event objects.
Knowledge	This class exposes the knowledge associated with a rule.
ManagementServer	This is the management server object of the MOM Class Library.
MomSdkException	The base exception class for all exceptions in the Mom class library.
MomSdkObjectModifiedException	This exception is thrown by several methods that update MOM data. It indicates that the object has changed since the reference to it was obtained. You should refresh the reference, modify the properties again, and then resubmit the changes.
Override	Represents a rule override.
OverridesCollection	Stores a collection of Override objects.
PerformanceData	This class describes a performance data point.
PerformanceData.Value	This class represents sampled performance data values.
PerformanceData.ValuesCollection	Stores a collection of Value objects.
PerformanceDataCollection	Stores a collection of PerformanceData objects.
PerformanceDataColumnNameExpression	The Microsoft.EnterpriseManagement.Mom.Internal.Expression for left-hand side column references in the Microsoft.EnterpriseManagement.Mom.PerformanceDataQueryExpression object.
PerformanceDataQuery	The PerformanceDataQuery class is used to build advanced queries for retrieving performance data information.
PerformanceDataQueryExpression	The QueryExpression used by the Microsoft.EnterpriseManagement.Mom.PerformanceDataQuery class.
QueryExpression	Classes derived from this abstract base class are used to perform queries on specific types of MOM operations data.
Rule	This class defines a MOM Rule.
RuleGroup	This class defines a MOM RuleGroup.
RuleGroupsCollection	Stores a collection of RuleGroup objects.
RulesCollection	Stores a collection of Rule objects.
Script	The Script class represents a response script stored in the MOM database.
ScriptCollection	Stores a collection of Script objects.
ScriptParameter	Represents the parameters passed from a rule to a script response.
ScriptParameterCollection	Stores a collection of ScriptParameter objects.
Task	The Task class represents a task stored in the MOM database.
TaskQuery	This class is used to query task information.
TasksCollection	Stores a collection of Task objects.
Threshold	Represents the threshold defined in a performance data rule.
ValueExpression	The Microsoft.EnterpriseManagement.Mom.Internal.Expression used for right-hand side literal values for any QueryExpression derived object.

Enumerations

Name	Description
AlertColumnNameExpression.ColumnName	Defines the column names that are valid for AlertColumnNameExpression objects.
AlertQuery.SortColumn	Defines the column names that can be used as keys for sorting alert query results.
AlertQuery.SortOrder	Defines the valid sorting types for alert query results.
AlertSeverity	Represents the possible values for the severity of an alert.
Attribute.ValueType	Defines the data types that are available for using in attribute values.
Computer.ManagementType	Defines the management types supported by MOM.
Computer.PendingActionState	Defines the pending actions occurring on a managed computer.
ComputerColumnNameExpression.ColumnName	Defines the column names that are valid for ComputerColumnNameExpression objects.
ComputerGroup.HealthPolicy	Defines the 3 states used to summarize the health of an entire computer group.
ComputerQuery.SortColumn	Defines the column names that can be used as keys for sorting computer query results.
ComputerQuery.SortOrder	Defines the valid sorting types for computer query results.
ComputerTypes	Defines the valid computer types in MOM.
Event.EventType	Defines the values for the Event.Type property.
EventColumnNameExpression.ColumnName	Defines the column names that are valid for EventColumnNameExpression objects.
EventQuery.SortColumn	Defines the column names that can be used as keys for sorting event query results.
EventQuery.SortOrder	Defines the valid sorting types for event query results.
PerformanceDataColumnNameExpression.ColumnName	Defines the column names that are valid for PerformanceDataColumnNameExpression objects.
PerformanceDataQuery.SortColumn	Specifies how items in a list are sorted.
PerformanceDataQuery.SortOrder	Defines the valid sorting types for performance data query results.
ProblemState	Represents the possible values for alerts used for state monitoring.
Threshold.ThresholdDirection	Defines the possible values for the Threshold.Direction property.
Threshold.ThresholdType	Defines the types of performance threshold values.