edu.tum.cs.commons.enums
Class EnumUtils

java.lang.Object
  edu.tum.cs.commons.enums.EnumUtils

public class EnumUtils
extends Object

Utility class for enumerations.

Version:

$Rev: 26268 $

Author:

Florian Deissenboeck, $Author: juergens $

Rating:

GREEN Hash: C7E378E216DC3DABDB774FCA63D04260

Constructor Summary

EnumUtils()

Method Summary

static <T extends Enum<T>> String[]	stringValues(Class<T> enumType) Returns an array containing the names of the enum element.
static <T extends Enum<T>> T	valueOf(Class<T> enumType, String constantName) This works like Enum.valueOf(java.lang.Class, java.lang.String) but returns null if constant wasn't found instead of throwing an IllegalArgumentException.
static <T extends Enum<T>> T	valueOfIgnoreCase(Class<T> enumType, String constantName) Works like valueOf(Class, String) but ignores case.

Methods inherited from class java.lang.Object

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

Constructor Detail

EnumUtils

public EnumUtils()

Method Detail

valueOf

public static <T extends Enum<T>> T valueOf(Class<T> enumType,
                                            String constantName)

This works like Enum.valueOf(java.lang.Class, java.lang.String) but returns null if constant wasn't found instead of throwing an IllegalArgumentException.

Parameters:

enumType - Enumeration class

constantName - name of the constant

Returns:

the matching constant or null if not found

valueOfIgnoreCase

public static <T extends Enum<T>> T valueOfIgnoreCase(Class<T> enumType,
                                                      String constantName)

Works like valueOf(Class, String) but ignores case. Worst case runtime is O('number of constants in enum').

stringValues

public static <T extends Enum<T>> String[] stringValues(Class<T> enumType)

Returns an array containing the names of the enum element. Ordering is same as element ordering in enum.