Module com.aoapps.collections

Package com.aoapps.collections

Class Sets

java.lang.Object

com.aoapps.collections.Sets

public class Sets
extends Object

General-purpose utilities for working with Set.

Author:

AO Industries, Inc.

Method Summary

Modifier and Type	Method	Description
static <E> Set<E>	union(Set<? extends E>... sets)	Combines multiple sets, maintaining order.
static <E> Set<E>	union(Set<? extends E> set, E... elements)	Combines a set with some new elements, maintaining order.
static <E> Set<E>	union(Set<? extends E> set1, Set<? extends E> set2)	Combines two sets, maintaining order.

Methods inherited from class java.lang.Object

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

Method Detail

union

public static <E> Set<E> union(Set<? extends E> set1,
                               Set<? extends E> set2)

Combines two sets, maintaining order.

Parameters:

set1 - may be null, which will be treated same as an empty set

set2 - may be null, which will be treated same as an empty set

See Also:

LinkedHashSet

union

@SafeVarargs
public static <E> Set<E> union(Set<? extends E>... sets)

Combines multiple sets, maintaining order.

Parameters:

sets - may be null, which will be treated same as an empty array. Elements may be null, which will be treated same as an empty set.

See Also:

LinkedHashSet

union

@SafeVarargs
public static <E> Set<E> union(Set<? extends E> set,
                               E... elements)

Combines a set with some new elements, maintaining order.

Parameters:

set - may be null, which will be treated same as an empty set

elements - may be null, which will be treated same as an empty array

See Also:

LinkedHashSet