Package org.apache.lucene.util.collections

Class IntArray

  • public class IntArray
extends Object
    A Class wrapper for a grow-able int[] which can be sorted and intersect with other IntArrays.
    WARNING: This API is experimental and might change in incompatible ways in the next release.

    • Constructor Detail

      • IntArray

        public IntArray()
        Construct a default IntArray, size 0 and surly a sort should not occur.

    • Method Detail

      • intersect

        public void intersect​(IntHashSet set)
        Intersects the data with a given IntHashSet.
        Parameters:
        set - A given ArrayHashSetInt which holds the data to be intersected against

      • intersect

        public void intersect​(IntArray other)
        Intersects the data with a given IntArray
        Parameters:
        other - A given IntArray which holds the data to be intersected agains

      • size

        public int size()
        Return the size of the Array. Not the allocated size, but the number of values actually set.
        Returns:
        the (filled) size of the array

      • addToArray

        public void addToArray​(int value)
        Adds a value to the array.
        Parameters:
        value - value to be added

      • equals

        public boolean equals​(Object o)
        Equals method. Checking the sizes, than the values from the last index to the first (Statistically for random should be the same but for our specific use would find differences faster).
        Overrides:
        equals in class Object

      • sort

        public void sort()
        Sorts the data. If it is needed.

      • hashCode

        public int hashCode()
        Calculates a hash-code for HashTables
        Overrides:
        hashCode in class Object

      • get

        public int get​(int i)
        Get an element from a specific index.
        Parameters:
        i - index of which element should be retrieved.

      • set

        public void set​(int idx,
                int value)

      • toString

        public String toString()
        toString or not toString. That is the question!
        Overrides:
        toString in class Object

      • clear

        public void clear​(boolean resize)
        Clear the IntArray (set all elements to zero).
        Parameters:
        resize - - if resize is true, then clear actually allocates a new array of size 0, essentially 'clearing' the array and freeing memory.