it.okkam.awesome.utils

Class SetUtils

java.lang.Object

it.okkam.awesome.utils.SetUtils

public class SetUtils
extends Object

Author:

simone

Method Summary

Modifier and Type	Method and Description
static <T> Set<T>	addIfNotEmpty(Set<T> set, T element) Add if not empty
static <T> Set<T>	createIfNull(Set<T> set) Create an HashSet if the Set is null;
static <T> List<T>	toList(Set<T> set) Return a list from a set

Methods inherited from class java.lang.Object

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

Method Detail

toList

public static <T> List<T> toList(Set<T> set)

Return a list from a set

Type Parameters:

T - The Set type

Parameters:

set - The input set

Returns:

The list based on the set

addIfNotEmpty

public static <T> Set<T> addIfNotEmpty(Set<T> set,
                                       T element)

Add if not empty

Type Parameters:

T - The Set and element type

Parameters:

set - The input set

element - The element to add

Returns:

The empty set or the input one

createIfNull

public static <T> Set<T> createIfNull(Set<T> set)

Create an HashSet if the Set is null;

Type Parameters:

T - The Set type

Parameters:

set - The input set

Returns:

The empty set or the input one