oracle.olapi.metadata.mtm
Class MtmSolvedETCubeDimensionality

java.lang.Object
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  +--oracle.olapi.metadata.BaseMetadataObject
        |
        +--oracle.olapi.metadata.mtm.MtmObject
              |
              +--oracle.olapi.metadata.mtm.MtmCubeDimensionality
                    |
                    +--oracle.olapi.metadata.mtm.MtmSolvedCubeDimensionality
                          |
                          +--oracle.olapi.metadata.mtm.MtmSolvedETCubeDimensionality

public class MtmSolvedETCubeDimensionality

extends MtmSolvedCubeDimensionality

An MtmSolvedCubeDimensionality object for one hierarchy in a solved MtmBaseCube whose fact table includes both detail (leaf) data and aggregate data for the associated measures. Such a cube is referred to as an ET (Embedded Totals) cube.

The fact table for an ET cube has the following two columns (among others) for each hierarchy.

• An ET column, which contains the dimension value for the row in the fact table. That is, it stores in the row the value of the lowest populated level of the hierarchy.
• A GID column, which identifies the level for the row in the fact table. The GID value is a binary number.

For information about ET and GID columns, see the Oracle OLAP Application Developer's Guide.

acceptVisitor

public java.lang.Object acceptVisitor(MtmObjectVisitor visitor,
                                      java.lang.Object context)

Calls the visitMtmSolvedETCubeDimensionality method of the specified MtmObjectVisitor and passes that method this MtmSolvedETCubeDimensionality and the specified context object.

Parameters:

visitor - An MtmObjectVisitor.

context - An Object.

Returns:

The Object returned by the visitMtmSolvedETCubeDimensionality method.

Overrides:

acceptVisitor in class MtmObject

getLevelExpression

public MtmValueExpression getLevelExpression()

Gets the GID column for the hierarchy from the fact table for the MtmBaseCube.

Returns:

An MtmValueExpression that represents the GID column for the hierarchy from the fact table for the MtmBaseCube.

getValueExpression

public MtmValueExpression getValueExpression()

Gets the ET column for the hierarchy from the fact table for the MtmBaseCube.

Returns:

An MtmValueExpression that represents the ET column for the hierarchy from the fact table for the MtmBaseCube.

qualifyGIDForMeasureQuery

public boolean qualifyGIDForMeasureQuery()

Indicates whether the SQL generator must qualify its specification of the ET column with the GID column in the WHERE clause for a measure query. Qualification is necessary for cubes based on relational data but is not necessary for cubes based on analytic workspace data.

Returns:

A boolean value that indicates whether the SQL generator must qualify its specification of the ET column with the GID column.

hasUniqueValues

public boolean hasUniqueValues()

Indicates whether the values of the ET column are unique. If the values are unique, then the same value (such as "New York") cannot appear in more than one level (such as CITY and STATE). If the values are not unique, then the same value can appear in more than one level.

Note that a given value can never appear more than once within the same level, under any circumstances.

This method always returns true when a cube is based on data in an analytic workspace.

Returns:

A boolean value that indicates whether the values of the ET column are unique.