MasterConstraintTMaster, TDetail Class |
Validates master attribute, which is in master-detail (or parent/child) relationship with another attribute.
Inheritance HierarchySystemObject
Aloe.SystemFrameworks.Domain.BusinessLogicBusinessRule
Aloe.SystemFrameworks.Domain.ValidationConstraintTMaster
Aloe.SystemFrameworks.Domain.ValidationValidationConstraintTMaster
Aloe.SystemFrameworks.Domain.ValidationMasterConstraintTMaster, TDetail
Aloe.SystemFrameworks.Domain.BusinessLogicBusinessRule
Aloe.SystemFrameworks.Domain.ValidationConstraintTMaster
Aloe.SystemFrameworks.Domain.ValidationValidationConstraintTMaster
Aloe.SystemFrameworks.Domain.ValidationMasterConstraintTMaster, TDetail
Namespace: Aloe.SystemFrameworks.Domain.Validation
Assembly: Aloe.SystemFrameworks.Domain (in Aloe.SystemFrameworks.Domain.dll) Version: 20.1.3.5
Syntaxpublic class MasterConstraint<TMaster, TDetail> : ValidationConstraint<TMaster> where TMaster : EntityObject where TDetail : EditableDomainObject
Type Parameters
- TMaster
- The type of the master entities.
- TDetail
- The type of the detail entities.
The MasterConstraintTMaster, TDetail type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | MasterConstraintTMaster, TDetail |
Initializes a new instance of the MasterConstraintTMaster, TDetail class.
|
Properties| Name | Description | |
|---|---|---|
 | Attribute |
The data attribute for which the constraint is defined or null if the constraint is not for specific attribute.
(Inherited from ConstraintTObject.) |
| Code |
Gets the unique rule code.
(Inherited from BusinessRule.) |
| Data |
Gets the master detail constraint data.
|
| DefaultExecutionPriority |
Gets the default execution priority of the rule.
It is used when priority is not specified when registering the rule for events.
(Inherited from ConstraintTObject.) |
| ExecuteForDeletedObject |
Gets a value indicating whether to execute the rule for deleted object. The default is false.
Inheritors can override it.
(Inherited from BusinessRule.) |
| GetAttribute |
Gets the function that returns the attribute of the constraint.
The attribute is specified for constraints, which constrain a specific attribute.
(Inherited from ConstraintTObject.) |
| GetMessage |
Gets the message getter function.
The function is called to create and format a message in case of constraint violation.
(Inherited from ValidationConstraintTObject.) |
| IsActivated |
Gets a value indicating whether this constraint has already been activated.
(Inherited from ConstraintTObject.) |
| LocalizedName |
Gets the localized name of the constraint.
(Overrides BusinessRuleLocalizedName.) |
| Name |
Gets the constraint name.
(Overrides BusinessRuleName.) |
Methods| Name | Description | |
|---|---|---|
| Activate |
Activates the constraint.
(Inherited from ConstraintTObject.) |
| Execute |
Executes the business rule on the specified object.
(Inherited from BusinessRule.) |
| ExecuteCore |
Executes the business rule on the specified object.
(Inherited from ValidationConstraintTObject.) |
| IsValid |
Validates the object and returns true if the object is valid according to the constraint.
(Overrides ValidationConstraintTObjectIsValid(TObject, ValidationEvent).) |
| OnRegistration |
Called upon registration of the business rule in a repository.
(Inherited from BusinessRule.) |
| ToString |
Returns a String that represents this instance.
(Inherited from BusinessRule.) |
RemarksThe master-detail relationship has the following properties:
- The master attribute is in entity type, which is master to the entity type of the detail attribute.
- The master and the detail attributes are of the same type.
- The master attribute is nullable, the detail attribute is not nullable.
- The master attribute has value only when all detail values have the same value (or there are not detail entities).
- Changing the master attribute changes all detail values to the same value.
- Changing a detail values, so that there are now different detail values leads to setting NULL in the master.
See Also