Daanse Tutorial - Parent Child Parent As Leaf
Catalog with Minimal Cube with Parent Child Hierarchy Parent Child Hierarchy is self-referencing hierarchy where members can have parent-child relationships within the same table, creating variable-depth structures. Hierarchy has parentAsLeafEnable true value This is a boolean flag that allows intermediate parent members to also appear as leaf members, enabling scenarios where the same entity functions both as a container and as a data point. When true, parents can have their own measures and participate in aggregations at multiple levels.
Database Schema
The Database Schema contains the Parent table with 3 columns: NAME, PARENT and VALUE. The NAME column is used as the discriminator in the Hierarchy definitions.
<relational:Schema xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:relational="http://www.omg.org/spec/CWM/1.1/resource/relational" xmi:id="_schema">
<ownedElement xsi:type="relational:Table" xmi:id="_table_parent" name="Parent">
<feature xsi:type="relational:Column" xmi:id="_column_parent_name" name="NAME"/>
<feature xsi:type="relational:Column" xmi:id="_column_parent_parent" name="PARENT"/>
<feature xsi:type="relational:Column" xmi:id="_column_parent_value" name="VALUE"/>
</ownedElement>
</relational:Schema>Note: This is only a symbolic example. For the exact definition, see the Definition section.
Fact Query
The Query is a simple TableSource that selects all columns from the Parent table to use in the measures.
<xmi:XMI xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:relational="http://www.omg.org/spec/CWM/1.1/resource/relational" xmlns:rolapsrc="https://www.daanse.org/spec/org.eclipse.daanse.rolap.mapping/database/source">
<rolapsrc:TableSource xmi:id="_tablesource_parent" table="_table_parent"/>
<relational:Table xmi:id="_table_parent" name="Parent">
<feature xsi:type="relational:Column" xmi:id="_column_parent_name" name="NAME"/>
<feature xsi:type="relational:Column" xmi:id="_column_parent_parent" name="PARENT"/>
<feature xsi:type="relational:Column" xmi:id="_column_parent_value" name="VALUE"/>
</relational:Table>
</xmi:XMI>Note: This is only a symbolic example. For the exact definition, see the Definition section.
Level
This Example uses 'Name' level based on the NAME column as key and name column NAME of table Parent.
<rolaplev:Level xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:rolaplev="https://www.daanse.org/spec/org.eclipse.daanse.rolap.mapping/olap/dimension/hierarchy/level" xmi:id="_level_name" name="Name" uniqueMembers="true">
<column href="_column_parent_name"/>
<nameColumn href="_column_parent_name"/>
</rolaplev:Level>Note: This is only a symbolic example. For the exact definition, see the Definition section.
Hierarchy1
The Hierarchy1 defined parentColumn to NAME column of Parent table. ParentColumn containing the parent reference for each member, establishing the self-referencing relationship. This column typically contains the primary key value of the parent member, or the nullParentValue for root members. The column enables the recursive traversal that defines the hierarchy structure. Also Hierarchy1 defined the level 'Name'. Level is Single level definition that applies to all members in this parent-child hierarchy. Unlike explicit hierarchies with multiple levels, parent-child hierarchies use one level definition that describes the properties and behavior of all members regardless of their position in the tree structure. Also Hierarchy1 Hierarchy has parentAsLeafEnable true value When true, parents can have their own measures and participate in aggregations at multiple levels.
<xmi:XMI xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:relational="http://www.omg.org/spec/CWM/1.1/resource/relational" xmlns:rolaphier="https://www.daanse.org/spec/org.eclipse.daanse.rolap.mapping/olap/dimension/hierarchy" xmlns:rolaplev="https://www.daanse.org/spec/org.eclipse.daanse.rolap.mapping/olap/dimension/hierarchy/level" xmlns:rolapsrc="https://www.daanse.org/spec/org.eclipse.daanse.rolap.mapping/database/source">
<rolaphier:ParentChildHierarchy xmi:id="_parentchildhierarchy_hierarchy" name="Hierarchy" allMemberName="All" primaryKey="_column_parent_name" source="_tablesource_parent" nullParentValue="all" parentColumn="_column_parent_parent" parentAsLeafEnable="true" parentAsLeafNameFormat="parent %s" level="_level_name"/>
<rolapsrc:TableSource xmi:id="_tablesource_parent" table="_table_parent"/>
<relational:Table xmi:id="_table_parent" name="Parent">
<feature xsi:type="relational:Column" xmi:id="_column_parent_name" name="NAME"/>
<feature xsi:type="relational:Column" xmi:id="_column_parent_parent" name="PARENT"/>
<feature xsi:type="relational:Column" xmi:id="_column_parent_value" name="VALUE"/>
</relational:Table>
<rolaplev:Level xmi:id="_level_name" name="Name" column="_column_parent_name" nameColumn="_column_parent_name" uniqueMembers="true"/>
</xmi:XMI>Note: This is only a symbolic example. For the exact definition, see the Definition section.
Diml1
The time dimension is defined with the one hierarchy.
<xmi:XMI xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:relational="http://www.omg.org/spec/CWM/1.1/resource/relational" xmlns:rolapdim="https://www.daanse.org/spec/org.eclipse.daanse.rolap.mapping/olap/dimension" xmlns:rolaphier="https://www.daanse.org/spec/org.eclipse.daanse.rolap.mapping/olap/dimension/hierarchy" xmlns:rolaplev="https://www.daanse.org/spec/org.eclipse.daanse.rolap.mapping/olap/dimension/hierarchy/level" xmlns:rolapsrc="https://www.daanse.org/spec/org.eclipse.daanse.rolap.mapping/database/source">
<rolapdim:StandardDimension xmi:id="_standarddimension_dimension" name="Dimension" hierarchies="_parentchildhierarchy_hierarchy"/>
<rolapsrc:TableSource xmi:id="_tablesource_parent" table="_table_parent"/>
<relational:Table xmi:id="_table_parent" name="Parent">
<feature xsi:type="relational:Column" xmi:id="_column_parent_name" name="NAME"/>
<feature xsi:type="relational:Column" xmi:id="_column_parent_parent" name="PARENT"/>
<feature xsi:type="relational:Column" xmi:id="_column_parent_value" name="VALUE"/>
</relational:Table>
<rolaplev:Level xmi:id="_level_name" name="Name" column="_column_parent_name" nameColumn="_column_parent_name" uniqueMembers="true"/>
<rolaphier:ParentChildHierarchy xmi:id="_parentchildhierarchy_hierarchy" name="Hierarchy" allMemberName="All" primaryKey="_column_parent_name" source="_tablesource_parent" nullParentValue="all" parentColumn="_column_parent_parent" parentAsLeafEnable="true" parentAsLeafNameFormat="parent %s" level="_level_name"/>
</xmi:XMI>Note: This is only a symbolic example. For the exact definition, see the Definition section.
Cube
The cube with Parent Child Hierarchy.
<xmi:XMI xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:relational="http://www.omg.org/spec/CWM/1.1/resource/relational" xmlns:rolapcube="https://www.daanse.org/spec/org.eclipse.daanse.rolap.mapping/olap/cube" xmlns:rolapdim="https://www.daanse.org/spec/org.eclipse.daanse.rolap.mapping/olap/dimension" xmlns:rolaphier="https://www.daanse.org/spec/org.eclipse.daanse.rolap.mapping/olap/dimension/hierarchy" xmlns:rolaplev="https://www.daanse.org/spec/org.eclipse.daanse.rolap.mapping/olap/dimension/hierarchy/level" xmlns:rolapmeas="https://www.daanse.org/spec/org.eclipse.daanse.rolap.mapping/olap/cube/measure" xmlns:rolapsrc="https://www.daanse.org/spec/org.eclipse.daanse.rolap.mapping/database/source">
<rolapcube:PhysicalCube xmi:id="_physicalcube_cube" name="Cube" source="_tablesource_parent">
<dimensionConnectors xmi:id="_dimensionconnector_dimension" foreignKey="_column_parent_name" dimension="_standarddimension_dimension" overrideDimensionName="Dimension"/>
<measureGroups xmi:id="_measuregroup">
<measures xsi:type="rolapmeas:SumMeasure" xmi:id="_summeasure_value" name="Value" column="_column_parent_value"/>
</measureGroups>
</rolapcube:PhysicalCube>
<rolapsrc:TableSource xmi:id="_tablesource_parent" table="_table_parent"/>
<relational:Table xmi:id="_table_parent" name="Parent">
<feature xsi:type="relational:Column" xmi:id="_column_parent_name" name="NAME"/>
<feature xsi:type="relational:Column" xmi:id="_column_parent_parent" name="PARENT"/>
<feature xsi:type="relational:Column" xmi:id="_column_parent_value" name="VALUE"/>
</relational:Table>
<rolaplev:Level xmi:id="_level_name" name="Name" column="_column_parent_name" nameColumn="_column_parent_name" uniqueMembers="true"/>
<rolapdim:StandardDimension xmi:id="_standarddimension_dimension" name="Dimension" hierarchies="_parentchildhierarchy_hierarchy"/>
<rolaphier:ParentChildHierarchy xmi:id="_parentchildhierarchy_hierarchy" name="Hierarchy" allMemberName="All" primaryKey="_column_parent_name" source="_tablesource_parent" nullParentValue="all" parentColumn="_column_parent_parent" parentAsLeafEnable="true" parentAsLeafNameFormat="parent %s" level="_level_name"/>
</xmi:XMI>Note: This is only a symbolic example. For the exact definition, see the Definition section.
Definition
This file represents the complete definition of the catalog.
<?xml version="1.0" encoding="UTF-8"?>
<xmi:XMI xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:relational="http://www.omg.org/spec/CWM/1.1/resource/relational" xmlns:rolapcat="https://www.daanse.org/spec/org.eclipse.daanse.rolap.mapping/catalog" xmlns:rolapcube="https://www.daanse.org/spec/org.eclipse.daanse.rolap.mapping/olap/cube" xmlns:rolapdim="https://www.daanse.org/spec/org.eclipse.daanse.rolap.mapping/olap/dimension" xmlns:rolaphier="https://www.daanse.org/spec/org.eclipse.daanse.rolap.mapping/olap/dimension/hierarchy" xmlns:rolaplev="https://www.daanse.org/spec/org.eclipse.daanse.rolap.mapping/olap/dimension/hierarchy/level" xmlns:rolapmeas="https://www.daanse.org/spec/org.eclipse.daanse.rolap.mapping/olap/cube/measure" xmlns:rolapsrc="https://www.daanse.org/spec/org.eclipse.daanse.rolap.mapping/database/source">
<relational:SQLSimpleType xmi:id="_sqlsimpletype_character_varying" name="CHARACTER VARYING" structuralFeature="_column_parent_parent _column_parent_name" typeNumber="12"/>
<relational:SQLSimpleType xmi:id="_sqlsimpletype_integer" name="INTEGER" structuralFeature="_column_parent_value" typeNumber="4"/>
<rolapcat:Catalog xmi:id="_catalog_parent_child_parent_as_leaf" description="Parent-child hierarchy with parent as leaf enabled" name="Daanse Tutorial - Parent Child Parent As Leaf" cubes="_physicalcube_cube" dbschemas="_schema"/>
<relational:Schema xmi:id="_schema">
<ownedElement xsi:type="relational:Table" xmi:id="_table_parent" name="Parent">
<feature xsi:type="relational:Column" xmi:id="_column_parent_name" name="NAME" type="_sqlsimpletype_character_varying"/>
<feature xsi:type="relational:Column" xmi:id="_column_parent_parent" name="PARENT" type="_sqlsimpletype_character_varying"/>
<feature xsi:type="relational:Column" xmi:id="_column_parent_value" name="VALUE" type="_sqlsimpletype_integer"/>
</ownedElement>
</relational:Schema>
<rolapsrc:TableSource xmi:id="_tablesource_parent" table="_table_parent"/>
<rolaplev:Level xmi:id="_level_name" name="Name" column="_column_parent_name" nameColumn="_column_parent_name" uniqueMembers="true"/>
<rolaphier:ParentChildHierarchy xmi:id="_parentchildhierarchy_hierarchy" name="Hierarchy" allMemberName="All" primaryKey="_column_parent_name" source="_tablesource_parent" nullParentValue="all" parentColumn="_column_parent_parent" parentAsLeafEnable="true" parentAsLeafNameFormat="parent %s" level="_level_name"/>
<rolapdim:StandardDimension xmi:id="_standarddimension_dimension" name="Dimension" hierarchies="_parentchildhierarchy_hierarchy"/>
<rolapcube:PhysicalCube xmi:id="_physicalcube_cube" name="Cube" source="_tablesource_parent">
<dimensionConnectors xmi:id="_dimensionconnector_dimension" foreignKey="_column_parent_name" dimension="_standarddimension_dimension" overrideDimensionName="Dimension"/>
<measureGroups xmi:id="_measuregroup">
<measures xsi:type="rolapmeas:SumMeasure" xmi:id="_summeasure_value" name="Value" column="_column_parent_value"/>
</measureGroups>
</rolapcube:PhysicalCube>
</xmi:XMI>Tutorial Zip
This file contains the data-tables as csv and the mapping as xmi file.