Package com.google.common.collect

Class EvictingQueue<E>

java.lang.Object
com.google.common.collect.ForwardingObject
com.google.common.collect.ForwardingCollection<E>
com.google.common.collect.ForwardingQueue<E>
com.google.common.collect.EvictingQueue<E>
All Implemented Interfaces:
Iterable<E>, Collection<E>, Queue<E>
@Beta @GwtIncompatible("java.util.ArrayDeque") @Deprecated(since="2022-12-01") public final class EvictingQueue<E> extends ForwardingQueue<E>
Deprecated.
The Google Guava Core Libraries are deprecated and will not be part of the AEM SDK after April 2023
A non-blocking queue which automatically evicts elements from the head of the queue when attempting to add new elements onto the queue and it is full.

An evicting queue must be configured with a maximum size. Each time an element is added to a full queue, the queue automatically removes its head element. This is different from conventional bounded queues, which either block or reject new elements when full.

This class is not thread-safe, and does not accept null elements.

Since:
15.0

  • Method Details

    • create

      public static <E> EvictingQueue<E> create(int maxSize)
      Deprecated.
      Creates and returns a new evicting queue that will hold up to maxSize elements.

      When maxSize is zero, elements will be evicted immediately after being added to the queue.

    • offer

      public boolean offer(E e)
      Deprecated.
      Adds the given element to this queue. If the queue is currently full, the element at the head of the queue is evicted to make room.
      Specified by:
      offer in interface Queue<E>
      Overrides:
      offer in class ForwardingQueue<E>
      Returns:
      true always

    • add

      public boolean add(E e)
      Deprecated.
      Adds the given element to this queue. If the queue is currently full, the element at the head of the queue is evicted to make room.
      Specified by:
      add in interface Collection<E>
      Specified by:
      add in interface Queue<E>
      Overrides:
      add in class ForwardingCollection<E>
      Returns:
      true always

    • addAll

      public boolean addAll(Collection<? extends E> collection)
      Deprecated.
      Specified by:
      addAll in interface Collection<E>
      Overrides:
      addAll in class ForwardingCollection<E>

    • contains

      public boolean contains(Object object)
      Deprecated.
      Specified by:
      contains in interface Collection<E>
      Overrides:
      contains in class ForwardingCollection<E>

    • remove

      public boolean remove(Object object)
      Deprecated.
      Specified by:
      remove in interface Collection<E>
      Overrides:
      remove in class ForwardingCollection<E>