com.nativelibs4java.util

Class EnumValues

java.lang.Object

com.nativelibs4java.util.EnumValues

public class EnumValues
extends Object

Methods to ease conversion between EnumValue-annotated enums and their integer value.

Author:

ochafik

Constructor Summary

Constructors

Constructor and Description
EnumValues()

Method Summary

Modifier and Type	Method and Description
static <E extends Enum<E>> E	getEnum(long value, Class<E> enumClass) Get the first enum item in enum class E which EnumValue value is equal to value
static <E extends Enum<E>> EnumSet<E>	getEnumSet(long value, Class<E> enumClass) Get the set of all the enum item in enum class E which EnumValue value flags are all present in value
static <E extends Enum<?>> long	getValue(E enumItem) Get the integer value associated with an enum item
static <E extends Enum<E>> long	getValue(EnumSet<E> set) Get the integer value resulting from ORing all the values of all the enum items present in the enum set.

Methods inherited from class java.lang.Object

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

Constructor Detail

EnumValues

public EnumValues()

Method Detail

getEnum

public static <E extends Enum<E>> E getEnum(long value,
                                            Class<E> enumClass)

Get the first enum item in enum class E which EnumValue value is equal to value

Type Parameters:

E - type of the enum

Parameters:

value -

enumClass -

Returns:

first enum item with matching value, null if there is no matching enum item

getEnumSet

public static <E extends Enum<E>> EnumSet<E> getEnumSet(long value,
                                                        Class<E> enumClass)

Get the set of all the enum item in enum class E which EnumValue value flags are all present in value

Type Parameters:

E - type of the enum

Parameters:

value -

enumClass -

Returns:

enum items with matching value flags

getValue

public static <E extends Enum<?>> long getValue(E enumItem)

Get the integer value associated with an enum item

Parameters:

enumItem -

Returns:

the numeric value of the enum

See Also:

EnumValue

getValue

public static <E extends Enum<E>> long getValue(EnumSet<E> set)

Get the integer value resulting from ORing all the values of all the enum items present in the enum set.

Parameters:

set - the EnumSet to process

Returns:

the OR of all the values of the enums in the set

See Also:

getValue(java.lang.Enum), EnumValue