class WeakConcurrentBag[A] extends AnyRef

A WeakConcurrentBag stores a collection of values, each wrapped in a WeakReference. The structure is optimized for addition, and will achieve zero allocations in the happy path (aside from the allocation of the WeakReference, which is unavoidable). To remove a value from the bag, it is sufficient to clear the corresponding weak reference, at which point the weak reference will be removed from the bag during the next garbage collection.

Garbage collection happens regularly during the add operation. Assuming uniform distribution of hash codes of values added to the bag, the chance of garbage collection occurring during an add operation is 1/n, where n is the capacity of the table backing the bag.

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Instance Constructors

  1. new WeakConcurrentBag(tableSize: Int)

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
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  3. final def ==(arg0: Any): Boolean
    Definition Classes
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  4. final def add(value: A): WeakReference[A]

    Adds the specified value to the concurrent bag, returning a WeakReference that wraps the value.

  5. final def asInstanceOf[T0]: T0
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  6. def clone(): AnyRef
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    @throws( ... ) @native()
  7. final def eq(arg0: AnyRef): Boolean
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  8. def equals(arg0: Any): Boolean
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  9. def finalize(): Unit
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    protected[lang]
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    @throws( classOf[java.lang.Throwable] )
  10. final def gc(): Unit

    Performs garbage collection, removing any empty weak references.

  11. final def getClass(): Class[_]
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    @native()
  12. def hashCode(): Int
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    @native()
  13. final def isInstanceOf[T0]: Boolean
    Definition Classes
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  14. final def iterator: Iterator[A]

    Returns a weakly consistent iterator over the bag.

    Returns a weakly consistent iterator over the bag. This iterator will never throw exceptions even in the presence of concurrent modifications.

  15. final def ne(arg0: AnyRef): Boolean
    Definition Classes
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  16. final def notify(): Unit
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    @native()
  17. final def notifyAll(): Unit
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    @native()
  18. final def size: Int

    Returns the size of the bag.

    Returns the size of the bag. Due to concurrent modification, this is only an estimate. Note this operation is O(n.max(m)), where n is the number of elements in the collection, and m is the table size.

  19. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
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  20. final def toString(): String
    Definition Classes
    WeakConcurrentBag → AnyRef → Any
  21. final def wait(): Unit
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    @throws( ... )
  22. final def wait(arg0: Long, arg1: Int): Unit
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    @throws( ... )
  23. final def wait(arg0: Long): Unit
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