com.yahoo.bard.webservice.util

Class EnumUtils

java.lang.Object

com.yahoo.bard.webservice.util.EnumUtils

public class EnumUtils
extends Object

Helper methods for enums.

Constructor Summary

Constructors

Constructor and Description
EnumUtils()

Method Summary

Modifier and Type	Method and Description
static String	camelCase(String s) Converts the string value to a camel case string.
static String	enumJsonName(Enum<?> e) Converts the enum value to a camel case string.
static <T extends Enum<T>> T	forKey(int key, Map<Integer,T> mapping, Class<T> enumeration) Boilerplate method to retrieve an enum method via an arbitrary key, rather than just the enum value.
static <T extends Enum<T>> T	forKey(String key, Map<String,T> mapping, Class<T> enumeration) Boilerplate method to retrieve an enum method via an arbitrary key, rather than just the enum value.

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

forKey

public static <T extends Enum<T>> T forKey(String key,
                                           Map<String,T> mapping,
                                           Class<T> enumeration)

Boilerplate method to retrieve an enum method via an arbitrary key, rather than just the enum value.

Type Parameters:

T - Enum we are getting the value by key for

Parameters:

key - Key to get the enum value for

mapping - Mapping to use to look up the value by key

enumeration - Enum we are getting value by key for (needed due to type erasure)

Returns:

The enum value for the key

Throws:

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

forKey

public static <T extends Enum<T>> T forKey(int key,
                                           Map<Integer,T> mapping,
                                           Class<T> enumeration)

Boilerplate method to retrieve an enum method via an arbitrary key, rather than just the enum value.

Type Parameters:

T - Enum we are getting the value by key for

Parameters:

key - Key to get the enum value for

mapping - Mapping to use to look up the value by key

enumeration - Enum we are getting value by key for (needed due to type erasure)

Returns:

The enum value for the key

Throws:

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

enumJsonName

public static String enumJsonName(Enum<?> e)

Converts the enum value to a camel case string. e.g ENUM_CONST_VALUE -> enumConstValue

Parameters:

e - enum

Returns:

enum string changed to camel case format

camelCase

public static String camelCase(String s)

Converts the string value to a camel case string. e.g ENUM_CONST_VALUE -> enumConstValue

Parameters:

s - string

Returns:

enum string changed to camel case format