Package org.datanucleus.store.types.converters

Class EnumConversionHelper

java.lang.Object

org.datanucleus.store.types.converters.EnumConversionHelper

public class EnumConversionHelper
extends java.lang.Object

Helper class providing conversion methods for use with enums.

Constructor Summary

Constructors

Constructor	Description
EnumConversionHelper()

Method Summary

Modifier and Type	Method	Description
static java.lang.Object	getEnumForStoredValue(AbstractMemberMetaData mmd, FieldRole role, java.lang.Object value, ClassLoaderResolver clr)
static java.lang.Object	getStoredValueFromEnum(AbstractMemberMetaData mmd, FieldRole role, java.lang.Enum myEnum)	Convenience method to return the "value" of an Enum, for a field and role.

Methods inherited from class java.lang.Object

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

Constructor Detail

EnumConversionHelper

public EnumConversionHelper()

Method Detail

getEnumForStoredValue

public static java.lang.Object getEnumForStoredValue(AbstractMemberMetaData mmd,
                                                     FieldRole role,
                                                     java.lang.Object value,
                                                     ClassLoaderResolver clr)

getStoredValueFromEnum

public static java.lang.Object getStoredValueFromEnum(AbstractMemberMetaData mmd,
                                                      FieldRole role,
                                                      java.lang.Enum myEnum)

Convenience method to return the "value" of an Enum, for a field and role. Firstly checks for a defined method on the Enum that returns the "value", otherwise falls back to use the ordinal.

Parameters:

mmd - Metadata for the member

role - Role of the Enum in this member

myEnum - The enum

Returns:

The "value" (String or Integer)