de.alpharogroup.collections.set

Class SetExtensions

java.lang.Object

de.alpharogroup.collections.set.SetExtensions

public class SetExtensions
extends Object

Extensions class for use with Set objects.

Constructor Summary

Constructors

Constructor and Description
SetExtensions()

Method Summary

Modifier and Type	Method and Description
static <T> boolean	isEmpty(Set<T> set) Deprecated. use instead the same name method in the class CollectionExtensions. Note: will be removed in the next minor release
static <T> boolean	isNotEmpty(Set<T> set) Deprecated. use instead the same name method in the class CollectionExtensions. Note: will be removed in the next minor release
static <T> Set<T>	newHashSet(Collection<T> collection, T... elements) Factory method for create new HashSet and will be returned as Set
static <T> Set<T>	newHashSet(T... elements) Factory method for create new HashSet and will be returned as Set
static <T> SortedSet<T>	newTreeSet(Collection<T> collection, Comparator<T> comparator, T... elements) Factory method for create new TreeSet and will be returned as SortedSet
static <T> SortedSet<T>	newTreeSet(Collection<T> collection, T... elements) Factory method for create new TreeSet and will be returned as SortedSet
static <T> SortedSet<T>	newTreeSet(T... elements) Factory method for create new TreeSet and will be returned as Set
static <T> Set<T>	toSet(Collection<T> collection) Converts the given Collection to a Set.
static <T> SortedSet<T>	toSortedSet(Collection<T> collection) Converts the given Collection to a SortedSet.

Methods inherited from class java.lang.Object

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

Constructor Detail

SetExtensions

public SetExtensions()

Method Detail

newHashSet

@SafeVarargs
public static final <T> Set<T> newHashSet(T... elements)

Factory method for create new HashSet and will be returned as Set

Type Parameters:

T - the generic type of the elements

Parameters:

elements - the elements to add in the new HashSet

Returns:

the new HashSet

newHashSet

@SafeVarargs
public static final <T> Set<T> newHashSet(Collection<T> collection,
                                                       T... elements)

Factory method for create new HashSet and will be returned as Set

Type Parameters:

T - the generic type of the elements

Parameters:

collection - the optional collection that will be added to the new list

elements - the elements to add in the new HashSet

Returns:

the new HashSet

newTreeSet

@SafeVarargs
public static final <T> SortedSet<T> newTreeSet(T... elements)

Factory method for create new TreeSet and will be returned as Set

Type Parameters:

T - the generic type of the elements

Parameters:

elements - the elements to add in the new TreeSet

Returns:

the new TreeSet

newTreeSet

@SafeVarargs
public static final <T> SortedSet<T> newTreeSet(Collection<T> collection,
                                                             T... elements)

Factory method for create new TreeSet and will be returned as SortedSet

Type Parameters:

T - the generic type of the elements

Parameters:

collection - the optional collection that will be added to the new list

elements - the elements to add in the new TreeSet

Returns:

the new TreeSet

newTreeSet

@SafeVarargs
public static final <T> SortedSet<T> newTreeSet(Collection<T> collection,
                                                             Comparator<T> comparator,
                                                             T... elements)

Factory method for create new TreeSet and will be returned as SortedSet

Type Parameters:

T - the generic type of the elements

Parameters:

collection - the optional collection that will be added to the new list

comparator - the comparator

elements - the elements to add in the new TreeSet

Returns:

the new TreeSet

isEmpty

@Deprecated
public static <T> boolean isEmpty(Set<T> set)

Deprecated. use instead the same name method in the class CollectionExtensions. Note: will be removed in the next minor release

Checks if a Set is null or empty

Type Parameters:

T - the generic type of the elements

Parameters:

set - The Set to check

Returns:

true if the set is null or empty otherwise false

isNotEmpty

@Deprecated
public static <T> boolean isNotEmpty(Set<T> set)

Deprecated. use instead the same name method in the class CollectionExtensions. Note: will be removed in the next minor release

Checks if the given Set is not null or empty

Type Parameters:

T - the generic type of the elements

Parameters:

set - The Set to check

Returns:

true if the set is null or empty otherwise false.

toSet

public static <T> Set<T> toSet(Collection<T> collection)

Converts the given Collection to a Set.

Type Parameters:

T - the generic type of the elements

Parameters:

collection - the collection

Returns:

A new Set

toSortedSet

public static <T> SortedSet<T> toSortedSet(Collection<T> collection)

Converts the given Collection to a SortedSet.

Type Parameters:

T - the generic type of the elements

Parameters:

collection - the collection

Returns:

A new SortedSet