public enum AllocationPolicy extends Enum<AllocationPolicy>
Cell.setValue(java.lang.Object, org.olap4j.AllocationPolicy, java.lang.Object...)
Enum Constant and Description |
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EQUAL_ALLOCATION
Every atomic cell that contributes to the updated cell will be
assigned an equal value that is:
<atomic cell value> =
<value> / Count(atomic cells contained in <tuple>)
|
EQUAL_INCREMENT
Every atomic cell that contributes to the updated cell will be
changed according to:
<atomic cell value> = <atomic cell value> +
(<value> - <existing value>) /
Count(atomic cells contained in <tuple>)
|
WEIGHTED_ALLOCATION
Every atomic cell that contributes to the updated cell will be
assigned an equal value that is:
<atomic cell value> =
<value> * <weight value expression>
|
WEIGHTED_INCREMENT
Every atomic cell that contributes to the updated cell will be
changed according to:
<atomic cell value> = <atomic cell value> +
(<value> - <existing value>) *
<weight value expression>
|
Modifier and Type | Method and Description |
---|---|
static AllocationPolicy |
valueOf(String name)
Returns the enum constant of this type with the specified name.
|
static AllocationPolicy[] |
values()
Returns an array containing the constants of this enum type, in
the order they are declared.
|
public static final AllocationPolicy EQUAL_ALLOCATION
<atomic cell value> = <value> / Count(atomic cells contained in <tuple>)
public static final AllocationPolicy EQUAL_INCREMENT
<atomic cell value> = <atomic cell value> + (<value> - <existing value>) / Count(atomic cells contained in <tuple>)
public static final AllocationPolicy WEIGHTED_ALLOCATION
<atomic cell value> = <value> * <weight value expression>
Takes an optional argument, weight_value_expression
.
If weight_value_expression
is not provided, the following
expression is assigned to it by default:
<weight value expression> = <atomic cell value> / <existing value>The value of
weight value expression
should be expressed as a value between 0 and 1. This value specifies the ratio of the allocated value you want to assign to the atomic cells that are affected by the allocation. It is the client application programmer's responsibilffity to create expressions whose rollup aggregate values will equal the allocated value of the expression.
public static final AllocationPolicy WEIGHTED_INCREMENT
<atomic cell value> = <atomic cell value> + (<value> - <existing value>) * <weight value expression>
Takes an optional argument, weight_value_expression
.
If weight_value_expression
is not provided, the following
expression is assigned to it by default:
<weight value expression> = <atomic cell value> / <existing value>The value of
weight value expression
should be expressed as a value between 0 and 1. This value specifies the ratio of the allocated value you want to assign to the atomic cells that are affected by the allocation. It is the client application programmer's responsibility to create expressions whose rollup aggregate values will equal the allocated value of the expression.
public static AllocationPolicy[] values()
for (AllocationPolicy c : AllocationPolicy.values()) System.out.println(c);
public static AllocationPolicy valueOf(String name)
name
- the name of the enum constant to be returned.IllegalArgumentException
- if this enum type has no constant with the specified nameNullPointerException
- if the argument is null