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API > API/Runtime > API/Runtime/TypedElementFramework > API/Runtime/TypedElementFramework/FSimpleQuery
Description
============================================================================ Hierarchy Conditions (for hierarchical relation types)
Filter to rows that are descendants of the specified ancestor in the given hierarchical relation. Uses interval encoding for O(1) evaluation per row.
| Name | IsDescendantOf |
| Type | function |
| Header File | /Engine/Source/Runtime/TypedElementFramework/Public/Elements/Framework/TypedElementQueryBuilder.h |
| Include Path | #include "Elements/Framework/TypedElementQueryBuilder.h" |
| Source | /Engine/Source/Runtime/TypedElementFramework/Private/Elements/Framework/TypedElementQueryBuilder.cpp |
FSimpleQuery & IsDescendantOf
(
RelationTypeHandle RelationType,
RowHandle Ancestor,
bool bIncludeSelf
)