Package org.cip4.jdflib.util

Class JavaEnumUtil

java.lang.Object

org.cip4.jdflib.util.JavaEnumUtil

public class JavaEnumUtil
extends java.lang.Object

class with utilities for enums

Method Summary

Modifier and Type	Method	Description
static <T extends java.lang.Enum<T>> boolean	aLessEqualsThanB(T a, T b)	checks whether the value of an enum is less or equal to another null is always smaller
static <T extends java.lang.Enum<T>> boolean	aLessThanB(T a, T b)	checks whether the value of an enum is less than another null is always smaller
static <T extends java.lang.Enum<T>> T	getEnumIgnoreCase(java.lang.Class<T> c, java.lang.String val)
static <T extends java.lang.Enum<T>> T	getEnumIgnoreCase(java.lang.Class<T> c, java.lang.String val, T def)
static java.lang.String	getName(java.lang.Enum<?> en)	null safe convenience name getter
static <T extends java.lang.Enum<T>> java.util.List<java.lang.String>	getNamesList(java.lang.Class<T> c)
static <T extends java.lang.Enum<T>> T	max(T e1, T e2)	get the higher of two enum values, null is lowest
static <T extends java.lang.Enum<T>> T	min(T e1, T e2)	get the lower of two enum values, null is lowest

Methods inherited from class java.lang.Object

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

Method Detail

min

public static <T extends java.lang.Enum<T>> T min(T e1,
                                                  T e2)

get the lower of two enum values, null is lowest

Parameters:

e1 -

e2 -

Returns:

the lower of the two values

max

public static <T extends java.lang.Enum<T>> T max(T e1,
                                                  T e2)

get the higher of two enum values, null is lowest

Parameters:

e1 -

e2 -

Returns:

the higher of the two values

getName

public static java.lang.String getName(java.lang.Enum<?> en)

null safe convenience name getter

Parameters:

en - the enum to get the name of the class

Returns:

aLessThanB

public static <T extends java.lang.Enum<T>> boolean aLessThanB(T a,
                                                               T b)

checks whether the value of an enum is less than another
null is always smaller

Parameters:

a - the first enum; if this is smaller we return true

b - the second enum

Returns:

boolean a is < b

aLessEqualsThanB

public static <T extends java.lang.Enum<T>> boolean aLessEqualsThanB(T a,
                                                                     T b)

checks whether the value of an enum is less or equal to another
null is always smaller

Parameters:

a - the first enum; if this is smaller we return true

b - the second enum

Returns:

boolean a is <= b

getEnumIgnoreCase

public static <T extends java.lang.Enum<T>> T getEnumIgnoreCase(java.lang.Class<T> c,
                                                                java.lang.String val)

Type Parameters:

T -

Parameters:

val -

c -

Returns:

getEnumIgnoreCase

public static <T extends java.lang.Enum<T>> T getEnumIgnoreCase(java.lang.Class<T> c,
                                                                java.lang.String val,
                                                                T def)

Type Parameters:

T -

Parameters:

c -

val -

def - the default

Returns:

getNamesList

public static <T extends java.lang.Enum<T>> java.util.List<java.lang.String> getNamesList(java.lang.Class<T> c)

Type Parameters:

T -

Parameters:

c -

Returns: