ConstraintDefinition complex type [SDM]

Platform SDK: System Definition Model Overview

ConstraintDefinition Complex Type

Note: This documentation is preliminary and is subject to change.

Defines the elements in a constraint on a defined set of input values. The constraint elements can identify a manager that provides code to evaluate input values or it can define a set of nested object or relationship constraints that evaluate the context in which the constraint definition is being used.

<xs:complexType name="ConstraintDefinition">
    <xs:complexContent>
        <xs:extension
            base="Definition"
        >
            <xs:choice
                minOccurs="0"
                maxOccurs="unbounded"
            >
                <xs:element name="RelationshipConstraint"
                    type="RelationshipConstraint"
                 />
RelationshipConstraint

                  A nested relationship constraint.
                <xs:element name="RelationshipConstraintGroup"
                    type="RelationshipConstraintGroup"
                 />
RelationshipConstraintGroup

                  A nested relationship constraint group.
                <xs:element name="ConstraintGroup"
                    type="ConstraintGroup"
                 />
ConstraintGroup
A nested constraint group identifying a manager that provides code to evaluate input values.
                <xs:element name="ObjectConstraint"
                    type="ObjectConstraint"
                 />
ObjectConstraint

                  A nested object constraint.
                <xs:element name="ObjectConstraintGroup"
                    type="ObjectConstraintGroup"
                 />
ObjectConstraintGroup

                  A nested object constraint group.
                <xs:element name="Constraint"
                    type="ConstraintMember"
                 />
Constraint

                  Identifies a manager that provides code to evaluate input values.
            </xs:choice>
            <xs:attribute name="TargetDefinition"
                type="QualifiedName"
                use="optional"
             />
TargetDefinition

                Defines the context in which a constraint definition expects to be evaluated. The target definition is required when the constraint definition includes object or relationship constraints. 
Where there is more than one possible context in which a constraint can be evaluated, use the target definition to identify the most appropriate context.
            <xs:attribute name="ReturnEarly"
                type="boolean"
                use="optional"
             />
ReturnEarly
true if no other constraints are evaluated that are part of the same overall constraint when the first constraint fails.  false if the other constraints are evaluated when the first constraint fails.
        </xs:extension>
    </xs:complexContent>
</xs:complexType>
 
ConstraintDefinition
 
Defines the elements in a constraint on a defined set of input values.
        
 
 

Child Elements

Element	Type	Description
Constraint	ConstraintMember	Identifies a manager that provides code to evaluate input values.
ConstraintGroup	ConstraintGroup	A nested constraint group identifying a manager that provides code to evaluate input values.
ObjectConstraint	ObjectConstraint	A nested object constraint.
ObjectConstraintGroup	ObjectConstraintGroup	A nested object constraint group.
RelationshipConstraint	RelationshipConstraint	A nested relationship constraint.
RelationshipConstraintGroup	RelationshipConstraintGroup	A nested relationship constraint group.

Attributes

Name	Type	Description
ReturnEarly	boolean	true if no other constraints are evaluated that are part of the same overall constraint when the first constraint fails. false if the other constraints are evaluated when the first constraint fails.
TargetDefinition	QualifiedName	Defines the context in which a constraint definition expects to be evaluated. The target definition is required when the constraint definition includes object or relationship constraints. Where there is more than one possible context in which a constraint can be evaluated, use the target definition to identify the most appropriate context.

See Also

SystemDefinitionModel Schema Complex Types

Last updated: June 2005  |  What did you think of this topic?  |  Order a Platform SDK CD

© Microsoft Corporation. All rights reserved. Terms of use.