Class ByteArrayPriorityQueue

java.lang.Object
it.unimi.dsi.fastutil.bytes.ByteArrayPriorityQueue
All Implemented Interfaces:
BytePriorityQueue, PriorityQueue<Byte>, Serializable

public class ByteArrayPriorityQueue
extends Object
implements BytePriorityQueue, Serializable
A type-specific array-based priority queue.

Instances of this class represent a priority queue using a backing array—all operations are performed directly on the array. The array is enlarged as needed, but it is never shrunk. Use the trim() method to reduce its size, if necessary.

This implementation is extremely inefficient, but it is difficult to beat when the size of the queue is very small.

See Also:
Serialized Form
  • Constructor Details

    • ByteArrayPriorityQueue

      public ByteArrayPriorityQueue​(int capacity, ByteComparator c)
      Creates a new empty queue with a given capacity and comparator.
      Parameters:
      capacity - the initial capacity of this queue.
      c - the comparator used in this queue, or null for the natural order.
    • ByteArrayPriorityQueue

      public ByteArrayPriorityQueue​(int capacity)
      Creates a new empty queue with a given capacity and using the natural order.
      Parameters:
      capacity - the initial capacity of this queue.
    • ByteArrayPriorityQueue

      public ByteArrayPriorityQueue​(ByteComparator c)
      Creates a new empty queue with a given comparator.
      Parameters:
      c - the comparator used in this queue, or null for the natural order.
    • ByteArrayPriorityQueue

      public ByteArrayPriorityQueue()
      Creates a new empty queue using the natural order.
    • ByteArrayPriorityQueue

      public ByteArrayPriorityQueue​(byte[] a, int size, ByteComparator c)
      Wraps a given array in a queue using a given comparator.

      The queue returned by this method will be backed by the given array.

      Parameters:
      a - an array.
      size - the number of elements to be included in the queue.
      c - the comparator used in this queue, or null for the natural order.
    • ByteArrayPriorityQueue

      public ByteArrayPriorityQueue​(byte[] a, ByteComparator c)
      Wraps a given array in a queue using a given comparator.

      The queue returned by this method will be backed by the given array.

      Parameters:
      a - an array.
      c - the comparator used in this queue, or null for the natural order.
    • ByteArrayPriorityQueue

      public ByteArrayPriorityQueue​(byte[] a, int size)
      Wraps a given array in a queue using the natural order.

      The queue returned by this method will be backed by the given array.

      Parameters:
      a - an array.
      size - the number of elements to be included in the queue.
    • ByteArrayPriorityQueue

      public ByteArrayPriorityQueue​(byte[] a)
      Wraps a given array in a queue using the natural order.

      The queue returned by this method will be backed by the given array.

      Parameters:
      a - an array.
  • Method Details