Package net.sf.saxon.sort

Class IntArraySet

  • All Implemented Interfaces:
    java.io.Serializable
    public class IntArraySet
extends java.lang.Object
implements java.io.Serializable
    Set of int values. This class is modelled on the java.net.Set interface, but it does not implement this interface, because the set members are int's rather than Objects. It does implement the same interface as IntHashSet, although this is currently not defined as an explicit interface.

    This implementation of a set of integers is optimized to use very little storage and to provide fast comparison of two sets. The equals() method determines whether two sets contain the same integers.

    Not thread safe.

    Author:
    Michael Kay
    See Also:
    Serialized Form

    • Constructor Detail

      • IntArraySet

        public IntArraySet()
        Create an empty set

      • IntArraySet

        public IntArraySet​(IntHashSet input)
        Create a set containing integers from the specified IntHashSet

      • IntArraySet

        public IntArraySet​(IntArraySet input)
        Create one IntArraySet as a copy of another

    • Method Detail

      • clear

        public void clear()

      • size

        public int size()

      • isEmpty

        public boolean isEmpty()

      • getValues

        public int[] getValues()

      • contains

        public boolean contains​(int value)

      • remove

        public boolean remove​(int value)

      • add

        public boolean add​(int value)
        Add an integer to the set
        Parameters:
        value - the integer to be added
        Returns:
        true if the integer was added, false if it was already present

      • getFirst

        public int getFirst()
        Get the first value in the set.
        Throws:
        java.lang.ArrayIndexOutOfBoundsException - if the set is empty

      • iterator

        public IntIterator iterator()
        Get an iterator over the values

      • union

        public IntArraySet union​(IntArraySet other)
        Form a new set that is the union of this set with another set.

      • make

        public static IntArraySet make​(int[] in,
                               int size)

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object

      • equals

        public boolean equals​(java.lang.Object other)
        Test whether this set has exactly the same members as another set
        Overrides:
        equals in class java.lang.Object

      • hashCode

        public int hashCode()
        Construct a hash key that supports the equals() test
        Overrides:
        hashCode in class java.lang.Object