Package com.sap.cds.ql.hana

Interface CqnHierarchyGenerator

All Superinterfaces:

CqnHierarchy, CqnSource, CqnTableFunction, CqnToken, JSONizable

@Beta
public interface CqnHierarchyGenerator
extends CqnHierarchy

A table function that generates a hierarchy based on recursive parent-child source data

Method Summary

Modifier and Type	Method	Description
default CqnHierarchyGenerator	asGenerator()
Integer	depth()
default boolean	isGenerator()
List<CqnSortSpecification>	orderBy()
Optional<CqnPredicate>	startWhere()	A filter condition that identifies the root nodes of the hierarchy generated by this generator

Methods inherited from interface com.sap.cds.ql.hana.CqnHierarchy

asHierarchySubset, asTableFunction, isHierarchySubset, isTableFunction

Methods inherited from interface com.sap.cds.ql.cqn.CqnSource

asJoin, asRef, asSelect, isJoin, isRef, isSelect

Methods inherited from interface com.sap.cds.CqnTableFunction

name, rowType, source

Methods inherited from interface com.sap.cds.ql.cqn.CqnToken

accept, tokens

Methods inherited from interface com.sap.cds.JSONizable

toJson

Method Details

startWhere

Optional<CqnPredicate> startWhere()

A filter condition that identifies the root nodes of the hierarchy generated by this generator

Returns:

a reference to the filter condition that identifies the root nodes as a CqnPredicate wrapped in an Optional

orderBy

List<CqnSortSpecification> orderBy()

depth

Integer depth()

isGenerator

default boolean isGenerator()

Specified by:

isGenerator in interface CqnHierarchy

asGenerator

default CqnHierarchyGenerator asGenerator()

Specified by:

asGenerator in interface CqnHierarchy