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In Configuration Manager, the CCM_Policy_Expression class is a client Windows Management Instrumentation (WMI) class that represents a policy expression that evaluates to either true or false.
The following syntax is simplified from Managed Object Format (MOF) code and includes all inherited properties.
Syntax
Class CCM_Policy_Expression : CCM_Policy_Config
{
String ExpressionData;
String ExpressionLanguage;
Boolean ExpressionState;
String ExpressionType;
};
Methods
The CCM_Policy_Expression class doesn't define any methods.
Properties
ExpressionData
Data type: String
Access type: Read/Write
Qualifiers: [Not_Null:ToInstance]
Data representing the expression to evaluate. The actual format is specific to the expression type. For more information, see ExpressionType.
ExpressionLanguage
Data type: String
Access type: Read/Write
Qualifiers: [Not_Null:ToInstance]
The type of expression, which must map to an object that contains information about the handler responsible for evaluating this expression type.
ExpressionState
Data type: Boolean
Access type: Read/Write
Qualifiers: None
Current state of the expression. This value indicates the result of the last expression evaluation, or null if the expression has never been evaluated.
ExpressionType
Data type: String
Access type: Read/Write
Qualifiers: [Not_Null:ToInstance]
Type that determines how the expression is evaluated. Possible values are:
| Value | Description |
|---|---|
| Once | The expression is evaluated only once. |
| Until-true | The expression continues to be reevaluated until evaluation returns true. |
| Continuous | The expression is always reevaluated. |
Requirements
Runtime Requirements
For more information, see Configuration Manager Client Runtime Requirements.
Development Requirements
For more information, see Configuration Manager Client Development Requirements.