International Business Machines Corporation

Thiha Than

Marshall Lee Humphries

Srinivas Jandhyala

Provided are a method, system, and article of manufacture, wherein a plurality of resources are grouped into a plurality of groups, wherein one group may be included in another in the plurality of groups, and wherein the plurality of resources and the plurality of groups comprise items. A recursive determination is made of valid items in a group by excluding those items that have already been determined to be included in the group.

Resolution of group membership for resources

A method is disclosed to efficiently manage membership within a hierarchical data structure. A record module is included to create a record that includes a member identifier, a member type, and an ancestor list for a member of a hierarchical data structure. The member type identifies the member as resource or a group comprising at least one resource, and the ancestor list comprises group identifiers ordered to represent a hierarchical relationship between the member and a top-level group. A storage module is included that stores the record in a collection. A reference module is included that references the record in response to accessing the member of the hierarchical data structure.

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San Jose, CA, United States of America

Thiha Than