Package org.cip4.jdflib.util

Class JavaEnumUtil

java.lang.Object

org.cip4.jdflib.util.JavaEnumUtil

public class JavaEnumUtil
extends Object

class with utilities for enums

Method Summary

Modifier and Type	Method	Description
static <T extends 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 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 Enum<T>> T	getEnumIgnoreCase(Class<T> c, String val)
static <T extends Enum<T>> T	getEnumIgnoreCase(Class<T> c, String val, T def)
static <T extends Enum<T>> List<T>	getEnumList(Class<T> c, String strings, boolean unique)	null safe convenience name list getter
static <T extends Enum<T>> List<T>	getEnumList(Class<T> c, Collection<String> strings, boolean unique)	null safe convenience name list getter
static String	getName(Enum<?> en)	null safe convenience name getter
static <T extends Enum<T>> StringArray	getNameList(Collection<T> esn, boolean unique)	null safe convenience name list getter
static <T extends Enum<T>> List<String>	getNamesList(Class<T> c)
static <T extends Enum<T>> T	max(T e1, T e2)	get the higher of two enum values, null is lowest
static <T extends 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 Details

min

public static <T extends 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 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 String getName(Enum<?> en)

null safe convenience name getter

Parameters:

en - the enum to get the name of the class

Returns:

aLessThanB

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

Type Parameters:

T -

Parameters:

val -

c -

Returns:

getEnumIgnoreCase

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

Type Parameters:

T -

Parameters:

c -

val -

def - the default

Returns:

getNamesList

public static <T extends Enum<T>> List<String> getNamesList(Class<T> c)

Type Parameters:

T -

Parameters:

c -

Returns:

getNameList

public static <T extends Enum<T>> StringArray getNameList(Collection<T> esn,
 boolean unique)

null safe convenience name list getter

Parameters:

esn - the enum collection to get the list of names

Returns:

getEnumList

public static <T extends Enum<T>> List<T> getEnumList(Class<T> c,
 Collection<String> strings,
 boolean unique)

null safe convenience name list getter

Parameters:

esn - the enum collection to get the list of names

Returns:

getEnumList

public static <T extends Enum<T>> List<T> getEnumList(Class<T> c,
 String strings,
 boolean unique)

null safe convenience name list getter

Parameters:

esn - the enum collection to get the list of names

Returns: