Package com.illumon.util.datastructures

Class WeakIdentityHashSet<TYPE>

java.lang.Object

com.illumon.util.datastructures.WeakIdentityHashSet<TYPE>

Direct Known Subclasses:

WeakIdentityHashSet.Synchronized

public class WeakIdentityHashSet<TYPE>
extends Object

An open-addressed identity hash set that only maintains weak references to its members. Only supports add(TYPE) and clear(). See WeakIdentityHashSet.Synchronized variant for concurrent usage.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	WeakIdentityHashSet.Synchronized<TYPE>	Thread-safe implementation.

Constructor Summary

Constructors

Constructor	Description
WeakIdentityHashSet()

Method Summary

Modifier and Type	Method	Description
boolean	add(TYPE value)	Add a value to the set if its not already present.
boolean	add(TYPE value, WeakReference<? extends TYPE> valueReference)	Add a value to the set if its not already present.
void	clear()	Clear the set.
void	forEach(Consumer<? super TYPE> action)	Invoke an action on each member of the set.

Methods inherited from class java.lang.Object

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

Constructor Details

WeakIdentityHashSet

public WeakIdentityHashSet()

Method Details

clear

public void clear()

Clear the set.

add

public boolean add(@NotNull TYPE value)

Add a value to the set if its not already present.

Parameters:

value - The value to add

Returns:

True if the value was added to the set

add

public boolean add(@NotNull TYPE value, @Nullable WeakReference<? extends TYPE> valueReference)

Add a value to the set if its not already present.

Parameters:

value - The value to add

valueReference - A re-usable WeakReference to value if already available, else null

Returns:

True if the value was added to the set

forEach

public void forEach(@NotNull Consumer<? super TYPE> action)

Invoke an action on each member of the set.

Parameters:

action - The action to invoke