com.springsource.util.math
Class Sets

java.lang.Object
  com.springsource.util.math.Sets

public class Sets
extends java.lang.Object

Defines common operations on Sets.

Concurrent Semantics
Threadsafe.

Since:

1.0

Author:

Rob Harrop

Constructor Summary

Sets()

Method Summary

static <T> java.util.Set<T>	asSet(T... items) Creates a Set containing the supplied items.
static <T> java.util.Set<T>	difference(java.util.Set<T> a, java.util.Set<T> b) Calculates the difference between a and b.
static <T> java.util.Set<T>	intersection(java.util.Set<T> a, java.util.Set<T> b) Calculates the intersection between a and b.

Methods inherited from class java.lang.Object

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

Constructor Detail

Sets

public Sets()

Method Detail

difference

public static <T> java.util.Set<T> difference(java.util.Set<T> a,
                                              java.util.Set<T> b)

Calculates the difference between a and b.

Type Parameters:

T - the type of the Set.

Parameters:

a - the lhs of the difference.

b - the rhs of the difference.

Returns:

the difference between a and b.

intersection

public static <T> java.util.Set<T> intersection(java.util.Set<T> a,
                                                java.util.Set<T> b)

Calculates the intersection between a and b.

Type Parameters:

T - the type of the Set.

Parameters:

a - the lhs of the intersection.

b - the rhs of the intersection.

Returns:

the intersection between a and b.

asSet

public static <T> java.util.Set<T> asSet(T... items)

Creates a Set containing the supplied items.

Type Parameters:

T - the type of the Set entries.

Parameters:

items - the Set contents.

Returns:

the resultant Set.