com.ibm.cos.v2.utils.internal

Class EnumUtils

java.lang.Object

com.ibm.cos.v2.utils.internal.EnumUtils

public final class EnumUtils
extends Object

Utility class for working with Enums.

Implementation notes: this class should've been outside internal package, but we can't fix it due to backwards compatibility reasons.

Method Summary

Modifier and Type	Method and Description
static <K,V extends Enum<V>> Map<K,V>	uniqueIndex(Class<V> enumType, Function<? super V,K> indexFunction) Create a map that indexes all enum values by a given index function.

Methods inherited from class java.lang.Object

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

Method Detail

uniqueIndex

public static <K,V extends Enum<V>> Map<K,V> uniqueIndex(Class<V> enumType,
                                                         Function<? super V,K> indexFunction)

Create a map that indexes all enum values by a given index function. This can offer a faster runtime complexity compared to iterating an enum's values().

See Also:

CollectionUtils.uniqueIndex(Iterable, Function)