com.fasterxml.jackson.databind

Class EnumNamingStrategies.CamelCaseStrategy

java.lang.Object

com.fasterxml.jackson.databind.EnumNamingStrategies.CamelCaseStrategy

All Implemented Interfaces:

EnumNamingStrategy

Enclosing class:

EnumNamingStrategies

public static class EnumNamingStrategies.CamelCaseStrategy
extends Object
implements EnumNamingStrategy

An implementation of EnumNamingStrategy that converts enum names in the typical upper snake case format to camel case format. This implementation follows three rules described below.

1. converts any character preceded by an underscore into upper case character, regardless of its original case (upper or lower).
2. converts any character NOT preceded by an underscore into a lower case character, regardless of its original case (upper or lower).
3. converts contiguous sequence of underscores into a single underscore.

WARNING: Naming conversion conflicts caused by underscore usage should be handled by client. e.g. Both PEANUT_BUTTER, PEANUT__BUTTER are converted into "peanutButter". And "peanutButter" will be deserialized into enum with smaller Enum.ordinal() value.

These rules result in the following example conversions from upper snakecase names to camelcase names.

• "USER_NAME" is converted into "userName"
• "USER______NAME" is converted into "userName"
• "USERNAME" is converted into "username"
• "User__Name" is converted into "userName"
• "_user_name" is converted into "UserName"
• "_user_name_s" is converted into "UserNameS"
• "__Username" is converted into "Username"
• "__username" is converted into "Username"
• "username" is converted into "username"
• "Username" is converted into "username"

Since:

2.15

Field Summary

Fields

Modifier and Type	Field and Description
static EnumNamingStrategies.CamelCaseStrategy	INSTANCE An intance of EnumNamingStrategies.CamelCaseStrategy for reuse.

Constructor Summary

Constructors

Constructor and Description
CamelCaseStrategy()

Method Summary

Modifier and Type	Method and Description
String	convertEnumToExternalName(String enumName) Translates the given enumName into an external property name according to the implementation of this EnumNamingStrategy.

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final EnumNamingStrategies.CamelCaseStrategy INSTANCE

An intance of EnumNamingStrategies.CamelCaseStrategy for reuse.

Since:

2.15

Constructor Detail

CamelCaseStrategy

public CamelCaseStrategy()

Method Detail

convertEnumToExternalName

public String convertEnumToExternalName(String enumName)

Description copied from interface: EnumNamingStrategy

Translates the given enumName into an external property name according to the implementation of this EnumNamingStrategy.

Specified by:

convertEnumToExternalName in interface EnumNamingStrategy

Parameters:

enumName - the name of the enum value to translate

Returns:

the external property name that corresponds to the given enumName according to the implementation of this EnumNamingStrategy.

Since:

2.15