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The parents and children of a given MdmLevel element are not within the given MdmLevel. They are elements of different MdmLevel objects. MdmHierarchy, which represents a list of elements arranged in a hierarchical structure that has levels based on parent-child relationships. Each element can have a parent and one or more children, and all of these elements are within the MdmHierarchy. Though the parent and child elements are within the MdmHierarchy, they correspond to elements in MdmLevel objects.

In addition to these OLAP API classes, you use CORBA classes, as described in “Step 1: Getting the CORBA stub for the first connect method parameter” on page 3-7. connection package. This topic focuses on the three important classes in the package: ConnectionManager, Connection, and ConnectionParameterInfo. One of the remaining classes, Database, is discussed briefly in Chapter 4. ConnectionManager class A ConnectionManager establishes a connection when you call its connect method. However, before you make this call, you must initialize the ConnectionManager.

To obtain the regions of an MdmDimension, you call the getRegions method on its MdmUnionDimensionDefinition. Information held by an MdmDimensionMemberType An MdmDimensionMemberType indicates the basic nature of the elements in the MdmDimension. It holds a description for each element, and it often provides methods for finding out other information about individual elements. The MdmDimensionMemberType class is abstract. Therefore, instances are always one of the following subclasses: ■ ■ 2-10 MdmTimeMemberType, which indicates that the MdmDimension elements represent time periods.

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