Package org.plumelib.util

Class MostlySingletonSet<T>

java.lang.Object

org.plumelib.util.AbstractMostlySingletonSet<T>

org.plumelib.util.MostlySingletonSet<T>

Type Parameters:

T - the type of elements of the set

All Implemented Interfaces:

Iterable<T>, Collection<T>, Set<T>

public final class MostlySingletonSet<T>
extends AbstractMostlySingletonSet<T>

A set that is more efficient than HashSet for 0 and 1 elements. Uses Objects.equals for object comparison and a LinkedHashSet for backing storage.

Usually, you should use ArraySet instead. The advantage of this over ArraySet is that this is efficient for large sets.

Nested Class Summary

Nested classes/interfaces inherited from class org.plumelib.util.AbstractMostlySingletonSet

AbstractMostlySingletonSet.State

Field Summary

Fields inherited from class org.plumelib.util.AbstractMostlySingletonSet

set, state, value

Constructor Summary

Constructors

Constructor	Description
MostlySingletonSet()	Create a MostlySingletonSet.
MostlySingletonSet(T value)	Create a MostlySingletonSet containing one value.

Method Summary

Modifier and Type	Method	Description
boolean	add(T e)
boolean	contains(@GuardSatisfied @UnknownSignedness Object o)

Methods inherited from class org.plumelib.util.AbstractMostlySingletonSet

addAll, checkRep, clear, containsAll, isEmpty, iterator, remove, removeAll, retainAll, size, toArray, toArray, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream, toArray

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface java.util.Set

equals, hashCode, spliterator

Constructor Details

MostlySingletonSet

public MostlySingletonSet()

Create a MostlySingletonSet.

MostlySingletonSet

public MostlySingletonSet(T value)

Create a MostlySingletonSet containing one value.

Parameters:

value - the single element of the set

Method Details

add

public boolean add(@GuardSatisfied MostlySingletonSet<T> this,
 T e)

contains

public boolean contains(@GuardSatisfied MostlySingletonSet<T> this,
 @GuardSatisfied @UnknownSignedness Object o)