Package org.plumelib.util

Class IdentityMostlySingletonSet<T>

java.lang.Object

org.plumelib.util.AbstractMostlySingletonSet<T>

org.plumelib.util.IdentityMostlySingletonSet<T>

Type Parameters:

T - the type of elements of the set

All Implemented Interfaces:

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

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

An arbitrary-size set that is very efficient (more efficient than HashSet) for 0 and 1 elements. Uses object identity for object comparison.

Usually, you should use IdentityArraySet instead. The advantage of this over IdentityArraySet 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
IdentityMostlySingletonSet()	Create an IdentityMostlySingletonSet.
IdentityMostlySingletonSet(T value)	Create an IdentityMostlySingletonSet 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

IdentityMostlySingletonSet

public IdentityMostlySingletonSet()

Create an IdentityMostlySingletonSet.

IdentityMostlySingletonSet

public IdentityMostlySingletonSet(T value)

Create an IdentityMostlySingletonSet containing one value.

Parameters:

value - the single element of the set

Method Details

add

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

contains

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