org.conqat.lib.commons.enums

Class EnumValueMap<E extends java.lang.Enum<E>>

java.lang.Object

org.conqat.lib.commons.enums.EnumValueMap<E>

public class EnumValueMap<E extends java.lang.Enum<E>>
extends java.lang.Object

This class provides a map from enum constant names to its actual enum values.

This can be used instead of EnumUtils.valueOf() (or .valueOf) for performance reasons, especially if the lookup of constant names is expected to fail often. Otherwise EnumUtils.valueOf() (or .valueOf) have a similar performance.

In case of looking up strings that do not exist as enum constant EnumUtils has to catch an IllegalArgumentException which has an even bigger performance impact. This implementation simply returns null if the element is not found without this overhead.

Constructor Summary

Constructors

Constructor and Description
EnumValueMap(java.lang.Class<E> enumType) Constructor for a case sensitive map.
EnumValueMap(java.lang.Class<E> enumType, boolean caseSensisitve) Constructor.

Method Summary

Modifier and Type	Method and Description
E	valueOf(java.lang.String name) Gets the enum value with the given name from an internal lookup map.

Methods inherited from class java.lang.Object

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

Constructor Detail

EnumValueMap

public EnumValueMap(java.lang.Class<E> enumType)

Constructor for a case sensitive map.

EnumValueMap

public EnumValueMap(java.lang.Class<E> enumType,
                    boolean caseSensisitve)

Constructor.

Method Detail

valueOf

public E valueOf(java.lang.String name)

Gets the enum value with the given name from an internal lookup map.