Package mondrian.olap

Class Category

java.lang.Object

mondrian.olap.EnumeratedValues

mondrian.olap.Category

All Implemented Interfaces:

Cloneable

public class Category
extends EnumeratedValues

Category enumerates the possible expression types.

Values of this enumeration are returned by Exp.getCategory(), FunDef.getParameterCategories(), and FunDef.getReturnCategory().

For modern code, the more descriptive type system (Type) is preferred.

Since:

Feb 21, 2003

Author:

jhyde

Nested Class Summary

Nested classes/interfaces inherited from class mondrian.olap.EnumeratedValues

EnumeratedValues.BasicValue, EnumeratedValues.Value

Field Summary

Fields

Modifier and Type	Field	Description
static final int	Array	Array is an expression of array type.
static final int	Constant	Constant is a flag which, when bitwise-OR-ed with a category value, indicates a constant (as opposed to an expression).
static final int	Cube	Cube is a cube expression.
static final int	DateTime	Represents a DataTime expression.
static final int	Dimension	Dimension is a dimension expression.
static final int	Empty	Represents an empty expression.
static final int	Expression	Expression is a flag which, when bitwise-OR-ed with a category value, indicates an expression (as opposed to a constant).
static final int	Hierarchy	Hierarchy is a hierarchy expression.
static final Category	instance	The singleton instance of Category.
static final int	Integer	Integer is an integer expression.
static final int	Level	Level is a level expression.
static final int	Logical	Logical is a boolean expression.
static final int	Mask	Mask is a mask to remove flags.
static final int	Member	Member is a member expression.
static final int	Null	Represents a Null value
static final int	Numeric	Numeric is a numeric expression.
static final int	Set	Set is a set of members or tuples.
static final int	String	String is a string expression.
static final int	Symbol	Symbol is a symbol, for example the BASC keyword to the Order() function.
static final int	Tuple	Tuple is a tuple expression.
static final int	Unknown	Unknown is an expression whose type is as yet unknown.
static final int	Value	Value is any expression yielding a string or numeric value.

Method Summary

Modifier and Type	Method	Description
static Category	instance()	Returns the singleton instance of Category.
static boolean	isScalar(int category)	Returns whether a category represents a scalar type.

Methods inherited from class mondrian.olap.EnumeratedValues

badValue, clone, getDescription, getMax, getMin, getMutableClone, getName, getNames, getOrdinal, getValue, getValue, getValuesSortedByName, isImmutable, isValid, makeImmutable, register, unexpected

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

instance

public static final Category instance

The singleton instance of Category.

Unknown

public static final int Unknown

Unknown is an expression whose type is as yet unknown.

See Also:

• Constant Field Values

Array

public static final int Array

Array is an expression of array type.

See Also:

• Constant Field Values

Dimension

public static final int Dimension

Dimension is a dimension expression.

See Also:

• Dimension
• Constant Field Values

Hierarchy

public static final int Hierarchy

Hierarchy is a hierarchy expression.

See Also:

• Hierarchy
• Constant Field Values

Level

public static final int Level

Level is a level expression.

See Also:

• Level
• Constant Field Values

Logical

public static final int Logical

Logical is a boolean expression.

See Also:

• Constant Field Values

Member

public static final int Member

Member is a member expression.

See Also:

• Member
• Constant Field Values

Numeric

public static final int Numeric

Numeric is a numeric expression.

See Also:

• Constant Field Values

Set

public static final int Set

Set is a set of members or tuples.

See Also:

• Constant Field Values

String

public static final int String

String is a string expression.

See Also:

• Constant Field Values

Tuple

public static final int Tuple

Tuple is a tuple expression.

See Also:

• Constant Field Values

Symbol

public static final int Symbol

Symbol is a symbol, for example the BASC keyword to the Order() function.

See Also:

• Constant Field Values

Cube

public static final int Cube

Cube is a cube expression.

See Also:

• Cube
• Constant Field Values

Value

public static final int Value

Value is any expression yielding a string or numeric value.

See Also:

• Constant Field Values

Integer

public static final int Integer

Integer is an integer expression. This is a subtype of Numeric.

See Also:

• Constant Field Values

Null

public static final int Null

Represents a Null value

See Also:

• Constant Field Values

Empty

public static final int Empty

Represents an empty expression.

See Also:

• Constant Field Values

DateTime

public static final int DateTime

Represents a DataTime expression.

See Also:

• Constant Field Values

Expression

public static final int Expression

Expression is a flag which, when bitwise-OR-ed with a category value, indicates an expression (as opposed to a constant).

See Also:

• Constant Field Values

Constant

public static final int Constant

Constant is a flag which, when bitwise-OR-ed with a category value, indicates a constant (as opposed to an expression).

See Also:

• Constant Field Values

Mask

public static final int Mask

Mask is a mask to remove flags.

See Also:

• Constant Field Values

Method Details

instance

public static Category instance()

Returns the singleton instance of Category.

Returns:

the singleton instance

isScalar

public static boolean isScalar(int category)

Returns whether a category represents a scalar type.

Parameters:

category - Category

Returns:

Whether is scalar