Package mondrian.olap

Interface Dimension

All Superinterfaces:

Annotated, OlapElement

All Known Implementing Classes:

DimensionBase, RolapCubeDimension

public interface Dimension
extends OlapElement, Annotated

A Dimension represents a dimension of a cube.

Author:

jhyde, 1 March, 1999

Nested Class Summary

Nested classes/interfaces inherited from interface mondrian.olap.OlapElement

OlapElement.LocalizedProperty

Field Summary

Fields

Modifier and Type	Field	Description
static final String	MEASURES_NAME
static final String	MEASURES_UNIQUE_NAME

Method Summary

Modifier and Type	Method	Description
DimensionType	getDimensionType()	Returns the type of this dimension (DimensionType.StandardDimension or DimensionType.TimeDimension
Hierarchy[]	getHierarchies()	Returns an array of the hierarchies which belong to this dimension.
Schema	getSchema()	Returns the schema this dimension belongs to.
boolean	isHighCardinality()	Returns whether the dimension should be considered as a "high cardinality" or "low cardinality" according to cube definition.
boolean	isMeasures()	Returns whether this is the [Measures] dimension.

Methods inherited from interface mondrian.olap.Annotated

getAnnotationMap

Methods inherited from interface mondrian.olap.OlapElement

getCaption, getDescription, getDimension, getHierarchy, getLocalized, getName, getQualifiedName, getUniqueName, isVisible, lookupChild

Field Details

MEASURES_UNIQUE_NAME

static final String MEASURES_UNIQUE_NAME

See Also:

• Constant Field Values

MEASURES_NAME

static final String MEASURES_NAME

See Also:

• Constant Field Values

Method Details

getHierarchies

Hierarchy[] getHierarchies()

Returns an array of the hierarchies which belong to this dimension.

isMeasures

boolean isMeasures()

Returns whether this is the [Measures] dimension.

getDimensionType

DimensionType getDimensionType()

Returns the type of this dimension (DimensionType.StandardDimension or DimensionType.TimeDimension

getSchema

Schema getSchema()

Returns the schema this dimension belongs to.

isHighCardinality

boolean isHighCardinality()

Returns whether the dimension should be considered as a "high cardinality" or "low cardinality" according to cube definition.

Mondrian tends to evaluate high cardinality dimensions using iterators rather than lists, avoiding instantiating the dimension in memory.

Returns:

whether this dimension is high-cardinality