Package org.olap4j.type
Interface Type
- All Known Implementing Classes:
BooleanType
,CubeType
,DecimalType
,DimensionType
,HierarchyType
,LevelType
,MemberType
,NullType
,NumericType
,ScalarType
,SetType
,StringType
,SymbolType
,TupleType
public interface Type
Type of an MDX expression.
All type objects are immutable.
- Since:
- Feb 17, 2005
- Author:
- jhyde
-
Method Summary
Modifier and TypeMethodDescriptionReturns the dimension of this type, or null if not known.Returns the hierarchy of this type.getLevel()
Returns the level of this type, or null if not known.boolean
usesDimension
(Dimension dimension, boolean maybe) Returns whether this type contains a given dimension.
-
Method Details
-
usesDimension
Returns whether this type contains a given dimension. For example:DimensionType([Gender])
uses only the[Gender]
dimension.TupleType(MemberType([Gender]), MemberType([Store]))
uses[Gender]
and[Store]
dimensions.
maybe
parameter comes into play when the dimensional information is incomplete. For example, when applied toTupleType(MemberType(null), MemberType([Store]))
,usesDimension([Gender], false)
returns true because it is possible that the expression returns a member of the[Gender]
dimension.- Parameters:
dimension
- Dimensionmaybe
- If true, returns true only if this type definitely uses the dimension- Returns:
- whether this type definitely (or if
maybe
is true, possibly) uses the given dimension
-
getDimension
Dimension getDimension()Returns the dimension of this type, or null if not known.- Returns:
- dimension of this type
-
getHierarchy
Hierarchy getHierarchy()Returns the hierarchy of this type. If not applicable, throws.- Returns:
- hierarchy of this type
-
getLevel
Level getLevel()Returns the level of this type, or null if not known.- Returns:
- level of this type
-