org.dashbuilder.dataset.group

Enum GroupStrategy

java.lang.Object

java.lang.Enum<GroupStrategy>

org.dashbuilder.dataset.group.GroupStrategy

All Implemented Interfaces:

Serializable, Comparable<GroupStrategy>

public enum GroupStrategy
extends Enum<GroupStrategy>

The strategy defines how to split a collection of values in a set of intervals.

Enum Constant Summary

Enum Constants

Enum Constant and Description
CUSTOM The intervals are defined in a custom manner and are not bound to any specific generation algorithm.
DYNAMIC The intervals depends on the underlying data plus some additional criteria such as the minimum interval size or the maximum number of intervals allowed.
FIXED The intervals are fixed of an specific size and they don't depend on the underlying data.

Method Summary

Modifier and Type	Method and Description
static GroupStrategy	getByName(String strategy)
boolean	isColumnTypeSupported(ColumnType ct) Check if this strategy can be used with the specified column type.
static GroupStrategy	valueOf(String name) Returns the enum constant of this type with the specified name.
static GroupStrategy[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

FIXED

public static final GroupStrategy FIXED

The intervals are fixed of an specific size and they don't depend on the underlying data.

DYNAMIC

public static final GroupStrategy DYNAMIC

The intervals depends on the underlying data plus some additional criteria such as the minimum interval size or the maximum number of intervals allowed.

CUSTOM

public static final GroupStrategy CUSTOM

The intervals are defined in a custom manner and are not bound to any specific generation algorithm.

Method Detail

values

public static GroupStrategy[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (GroupStrategy c : GroupStrategy.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static GroupStrategy valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

isColumnTypeSupported

public boolean isColumnTypeSupported(ColumnType ct)

Check if this strategy can be used with the specified column type.

getByName

public static GroupStrategy getByName(String strategy)