PolicyHeaderExtensions¶

PolicyHeaderExtensions supplies the association-selection and filtering helpers that the policy-header subsystem uses to interpret raw association sequences. It centralizes the common extension methods for both IPolicyAssociation and IPolicyHeaderAssociation collections.

Purpose¶

Give header consumers concise operations for selecting association rows by type, category, or parent status.
Mirror the same filtering vocabulary across both policy-association and header-association interfaces.

Context¶

Namespace: SAIF.Application.Policy.PolicyHeader
Assembly/package: SAIF.Application.Policy

Public members¶

Member	Signature	Purpose
`SelectedAssociations`	`Function SelectedAssociations(ByVal Target As IPolicyHeaderDataProvider, ByVal inSettings As IPolicyHeaderSettings) As IEnumerable(Of IPolicyHeaderAssociation)`	Returns the header associations that match the currently selected association type.
`DistinctPolicyAssociationTypes`	`Function DistinctPolicyAssociationTypes(ByVal Target As IPolicyHeaderDataProvider) As IEnumerable(Of IPolicyAssociationType)`	Returns the unique association types present in the header payload, ordered for display.
`HasAssociations`	`Function HasAssociations(ByVal Target As IEnumerable(Of IPolicyAssociation), ByVal inAssociationType As IPolicyAssociationType) As Boolean`	Reports whether any policy association exists for a specific type.
`HasAssociations`	`Function HasAssociations(ByVal Target As IEnumerable(Of IPolicyAssociation), ByVal inAssociationCategory As PolicyAssociationTypeCategories) As Boolean`	Reports whether any policy association exists in a specific category.
`GetAssociations`	`Function GetAssociations(ByVal Target As IEnumerable(Of IPolicyAssociation), ByVal inAssociationType As IPolicyAssociationType) As IEnumerable(Of IPolicyAssociation)`	Filters policy associations to a specific type.
`GetAssociations`	`Function GetAssociations(ByVal Target As IEnumerable(Of IPolicyAssociation), ByVal inAssociationCategory As PolicyAssociationTypeCategories) As IEnumerable(Of IPolicyAssociation)`	Filters policy associations to a specific category.
`Parents`	`Function Parents(ByVal Target As IEnumerable(Of IPolicyAssociation)) As IEnumerable(Of IPolicyAssociation)`	Returns only the policy-association rows marked as parents.
`GetAssociations`	`Function GetAssociations(ByVal Target As IEnumerable(Of IPolicyHeaderAssociation), ByVal inAssociationType As IPolicyAssociationType) As IEnumerable(Of IPolicyHeaderAssociation)`	Filters header associations to a specific type.
`GetAssociations`	`Function GetAssociations(ByVal Target As IEnumerable(Of IPolicyHeaderAssociation), ByVal inAssociationCategory As PolicyAssociationTypeCategories) As IEnumerable(Of IPolicyHeaderAssociation)`	Filters header associations to a specific category.
`HasAssociations`	`Function HasAssociations(ByVal Target As IEnumerable(Of IPolicyHeaderAssociation), ByVal inAssociationType As IPolicyAssociationType) As Boolean`	Reports whether any header association exists for a specific type.
`HasAssociations`	`Function HasAssociations(ByVal Target As IEnumerable(Of IPolicyHeaderAssociation), ByVal inAssociationCategory As PolicyAssociationTypeCategories) As Boolean`	Reports whether any header association exists in a specific category.
`Parents`	`Function Parents(ByVal Target As IEnumerable(Of IPolicyHeaderAssociation)) As IEnumerable(Of IPolicyHeaderAssociation)`	Returns only the header-association rows marked as parents.

Behavioral notes¶

The header-association overloads mirror the policy-association overloads so callers can apply the same selection logic after projection.

Constraints and usage notes¶

The module assumes callers provide association sequences that already reflect the desired security and ownership filters.

Sources¶

Application\SAIF.Application.Policy\PolicyAppManager.vb