org.cip4.jdflib.util
Class EnumUtil

java.lang.Object
  org.cip4.jdflib.util.EnumUtil

public class EnumUtil
extends Object

class with utilities for enums

Author:

prosirai

Constructor Summary

EnumUtil()

Method Summary

static boolean	aLessEqualsThanB(org.apache.commons.lang.enums.ValuedEnum a, org.apache.commons.lang.enums.ValuedEnum b) checks whether the value of an enum is less or equal to another null is always smaller
static boolean	aLessThanB(org.apache.commons.lang.enums.ValuedEnum a, org.apache.commons.lang.enums.ValuedEnum b) checks whether the value of an enum is less than another null is always smaller
static String	getEnumName(org.apache.commons.lang.enums.ValuedEnum en) null save convenience name getter
static Vector<org.apache.commons.lang.enums.ValuedEnum>	getEnumsVector(Class<? extends org.apache.commons.lang.enums.ValuedEnum> e) get a vector of elements in an iteration
static String	getName(org.apache.commons.lang.enums.ValuedEnum en) null save convenience name getter
static VString	getNamesVector(Class<? extends org.apache.commons.lang.enums.ValuedEnum> e) get a vector of names in an iteration
static org.apache.commons.lang.enums.ValuedEnum	max(org.apache.commons.lang.enums.ValuedEnum e1, org.apache.commons.lang.enums.ValuedEnum e2) get the higher of two enum values, null is lowest
static org.apache.commons.lang.enums.ValuedEnum	min(org.apache.commons.lang.enums.ValuedEnum e1, org.apache.commons.lang.enums.ValuedEnum 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

Constructor Detail

EnumUtil

public EnumUtil()

Method Detail

getNamesVector

public static VString getNamesVector(Class<? extends org.apache.commons.lang.enums.ValuedEnum> e)

get a vector of names in an iteration

Parameters:

e - any member of the enum to iterate over

Returns:

VString - the vector of enum names

getEnumsVector

public static Vector<org.apache.commons.lang.enums.ValuedEnum> getEnumsVector(Class<? extends org.apache.commons.lang.enums.ValuedEnum> e)

get a vector of elements in an iteration

Parameters:

e - any member of the enum to iterate over

Returns:

Vector - the vector of enum instances

min

public static org.apache.commons.lang.enums.ValuedEnum min(org.apache.commons.lang.enums.ValuedEnum e1,
                                                           org.apache.commons.lang.enums.ValuedEnum e2)

get the lower of two enum values, null is lowest

Parameters:

e1 -

e2 -

Returns:

the lower of the two values

max

public static org.apache.commons.lang.enums.ValuedEnum max(org.apache.commons.lang.enums.ValuedEnum e1,
                                                           org.apache.commons.lang.enums.ValuedEnum 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(org.apache.commons.lang.enums.ValuedEnum en)

null save convenience name getter

Parameters:

en - the enum to get the name

Returns:

getEnumName

public static String getEnumName(org.apache.commons.lang.enums.ValuedEnum en)

null save convenience name getter

Parameters:

en - the enum to get the name

Returns:

aLessThanB

public static boolean aLessThanB(org.apache.commons.lang.enums.ValuedEnum a,
                                 org.apache.commons.lang.enums.ValuedEnum 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 boolean aLessEqualsThanB(org.apache.commons.lang.enums.ValuedEnum a,
                                       org.apache.commons.lang.enums.ValuedEnum 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