io.github.andrebeat.pool

ExpiringPool

class ExpiringPool[A <: AnyRef] extends ArrayBlockingQueuePool[A]

An object pool that creates the objects as needed until a maximum number of objects has been created and automatically evicts objects after they have been idle for a given amount of time.

Linear Supertypes
ArrayBlockingQueuePool[A], Pool[A], AnyRef, Any
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  1. ExpiringPool
  2. ArrayBlockingQueuePool
  3. Pool
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new ExpiringPool(capacity: Int, referenceType: ReferenceType, maxIdleTime: Duration, _factory: () ⇒ A, _reset: (A) ⇒ Unit, _dispose: (A) ⇒ Unit, _healthCheck: (A) ⇒ Boolean)

Type Members

  1. final class ExpiringItem extends Item

    Attributes
    protected
  2. abstract class Item extends AnyRef

    Attributes
    protected
    Definition Classes
    ArrayBlockingQueuePool

Abstract Value Members

  1. abstract def capacity(): Int

    Returns the capacity of the pool, i.

    Returns the capacity of the pool, i.e. the maximum number of objects the pool can hold.

    returns

    the capacity of the pool.

    Definition Classes
    Pool

Concrete Value Members

  1. final def !=(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  2. final def !=(arg0: Any): Boolean

    Definition Classes
    Any
  3. final def ##(): Int

    Definition Classes
    AnyRef → Any
  4. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  5. final def ==(arg0: Any): Boolean

    Definition Classes
    Any
  6. def acquire(): Lease[A]

    Acquire a lease for an object blocking if none is available.

    Acquire a lease for an object blocking if none is available.

    returns

    a lease for an object from this pool.

    Definition Classes
    Pool
    Exceptions thrown
    ClosedPoolException

    If this pool is closed.

  7. final def asInstanceOf[T0]: T0

    Definition Classes
    Any
  8. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  9. def close(): Unit

    Closes this pool, and properly disposes of each pooled object, releasing any resources associated with the pool (e.

    Closes this pool, and properly disposes of each pooled object, releasing any resources associated with the pool (e.g. background timer threads).

    If the pool has already been closed this method does nothing.

    Definition Classes
    Pool
  10. val closed: AtomicBoolean

    Attributes
    protected[this]
    Definition Classes
    Pool
  11. def destroy(a: A): Unit

    Attributes
    protected[this]
    Definition Classes
    ArrayBlockingQueuePool
    Annotations
    @inline()
  12. def dispose(a: A): Unit

    Object "destructor".

    Object "destructor". This method is called whenever the object is evicted from the pool. For example, when doing connection pooling it is necessary to close the connection whenever it is evicted (i.e. permanently removed) from the pool.

    Attributes
    protected[this]
    Definition Classes
    ExpiringPoolPool
    Annotations
    @inline()
  13. def drain(): Unit

    Drains the object pool, i.

    Drains the object pool, i.e. evicts every object currently pooled.

    Definition Classes
    Pool
    Exceptions thrown
    ClosedPoolException

    If this pool is closed.

  14. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  15. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  16. def factory(): A

    Factory method for creating new objects.

    Factory method for creating new objects.

    returns

    a new object.

    Attributes
    protected[this]
    Definition Classes
    ExpiringPoolPool
    Annotations
    @inline()
  17. def fill(): Unit

    Fills the object pool by creating (and pooling) new objects until the number of live objects reaches the pool capacity.

    Fills the object pool by creating (and pooling) new objects until the number of live objects reaches the pool capacity.

    Definition Classes
    Pool
    Exceptions thrown
    ClosedPoolException

    If this pool is closed.

  18. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  19. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any
  20. def handleAcquire(): Lease[A]

    Attributes
    protected[this]
    Definition Classes
    ArrayBlockingQueuePoolPool
  21. def handleClose(): Unit

    Attributes
    protected[this]
    Definition Classes
    ExpiringPoolPool
    Annotations
    @inline()
  22. final def handleDrain(): Unit

    Attributes
    protected[this]
    Definition Classes
    ArrayBlockingQueuePoolPool
    Annotations
    @tailrec()
  23. final def handleFill(): Unit

    Attributes
    protected[this]
    Definition Classes
    ArrayBlockingQueuePoolPool
    Annotations
    @tailrec()
  24. def handleTryAcquire(atMost: Duration): Option[Lease[A]]

    Attributes
    protected[this]
    Definition Classes
    ArrayBlockingQueuePoolPool
  25. def handleTryAcquire(): Option[Lease[A]]

    Attributes
    protected[this]
    Definition Classes
    ArrayBlockingQueuePoolPool
  26. def hashCode(): Int

    Definition Classes
    AnyRef → Any
  27. def healthCheck(a: A): Boolean

    An health check that is performed on an object before its leased from the pool.

    An health check that is performed on an object before its leased from the pool. If the health check passes the object is successfully leased. Otherwise, the object is destroyed (and a new one is fetched or created)

    Attributes
    protected[this]
    Definition Classes
    ExpiringPoolPool
    Annotations
    @inline()
  28. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any
  29. val items: ArrayBlockingQueue[Item]

    Attributes
    protected[this]
    Definition Classes
    ArrayBlockingQueuePool
  30. def leased(): Int

    Returns the number of leased objects.

    Returns the number of leased objects.

    The value returned by this method is only accurate when the referenceType is io.github.andrebeat.pool.ReferenceType.Strong, since GC-based eviction is checked only when trying to acquire an object.

    returns

    the number of leased objects.

    Definition Classes
    Pool
  31. def live(): Int

    Returns the number of live objects, i.

    Returns the number of live objects, i.e. the number of currently pooled objects plus leased objects.

    The value returned by this method is only accurate when the referenceType is io.github.andrebeat.pool.ReferenceType.Strong, since GC-based eviction is checked only when trying to acquire an object.

    returns

    the number of live objects.

    Definition Classes
    ArrayBlockingQueuePoolPool
  32. val maxIdleTime: Duration

  33. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  34. def newItem(a: A): ExpiringItem

    Attributes
    protected[this]
    Definition Classes
    ExpiringPoolArrayBlockingQueuePool
    Annotations
    @inline()
  35. final def notify(): Unit

    Definition Classes
    AnyRef
  36. final def notifyAll(): Unit

    Definition Classes
    AnyRef
  37. def reset(a: A): Unit

    Resets the internal state of object.

    Resets the internal state of object. This method is called on an object whenever it is added/released back to the pool. For example, if pooling an object like a java.nio.ByteBuffer it might make sense to call its reset() method whenever the object is released to the pool, so that its future users do not observe the internal state introduced by previous ones.

    Attributes
    protected[this]
    Definition Classes
    ExpiringPoolPool
    Annotations
    @inline()
  38. def size(): Int

    Returns the number of objects in the pool.

    Returns the number of objects in the pool.

    The value returned by this method is only accurate when the referenceType is io.github.andrebeat.pool.ReferenceType.Strong, since GC-based eviction is checked only when trying to acquire an object.

    returns

    the number of objects in the pool.

    Definition Classes
    ArrayBlockingQueuePoolPool
  39. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  40. def toString(): String

    Definition Classes
    AnyRef → Any
  41. def tryAcquire(atMost: Duration): Option[Lease[A]]

    Try to acquire a lease for an object blocking at most until the given duration.

    Try to acquire a lease for an object blocking at most until the given duration.

    atMost

    maximum wait time for the lease to be available.

    returns

    a lease for an object from this pool if available until the given duration, None otherwise.

    Definition Classes
    Pool
    Exceptions thrown
    ClosedPoolException

    If this pool is closed.

  42. def tryAcquire(): Option[Lease[A]]

    Try to acquire a lease for an object without blocking.

    Try to acquire a lease for an object without blocking.

    returns

    a lease for an object from this pool if available, None otherwise.

    Definition Classes
    Pool
    Exceptions thrown
    ClosedPoolException

    If this pool is closed.

  43. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  44. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  45. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from ArrayBlockingQueuePool[A]

Inherited from Pool[A]

Inherited from AnyRef

Inherited from Any

Ungrouped