webMethods, OneData, and Terracotta  10.2 | Managing Master Data with webMethods OneData | Implementing webMethods OneData | Objects in OneData | OneData Objects | Supertype Subtype Structures | Hierarchies in OneData
 
Hierarchies in OneData
OneData supports several types of hierarchies.
Hierarchy Type
Description
Leveled Hierarchy
The simplest type of hierarchy where each child node has only one parent and each node has its own distinctive set of attributes. For example, Country > State > City.
Alternate Hierarchy
Each node has its own distinctive set of attributes but a child node could have multiple parents. For example, City object has both Country and State as parents.
Ragged Hierarchy
Hierarchies where the number of nodes is not fixed. One node could be 5 levels deep and another could be 20. Moreover, all the nodes share the same attribute. It is further divided into self recursive hierarchy and network recursive hierarchy.
*Self Recursive Hierarchy. Each child node can have only one parent.
*Network Recursive Hierarchy. Each child node can have multiple parents.

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