Package net.sf.saxon.z

Class IntEmptySet

java.lang.Object
net.sf.saxon.z.IntSet
net.sf.saxon.z.IntEmptySet
public class IntEmptySet extends IntSet
An immutable integer set containing no integers

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    add(int value)
    Add an integer to the set
    void
    clear()
    Clear the contents of the IntSet (making it an empty set)
    boolean
    contains(int value)
    Determine whether a particular integer is present in the set
    boolean
    containsAll(IntSet other)
    Test if this set is a superset of another set
    IntSet
    copy()
    Create a copy of this IntSet that leaves the original unchanged.
    IntSet
    except(IntSet other)
    Form a new set that is the difference of this set and another set.
    static IntEmptySet
    getInstance()
     
    IntSet
    intersect(IntSet other)
    Form a new set that is the intersection of two IntSets.
    boolean
    isEmpty()
    Determine if the set is empty
    boolean
    isMutable()
    Ask whether the set permits in-situ modifications using add() and remove()
    IntIterator
    iterator()
    Get an iterator over the values
    IntSet
    mutableCopy()
    Create a copy of this IntSet that contains the same set of integers.
    boolean
    remove(int value)
    Remove an integer from the set
    int
    size()
    Get the number of integers in the set
    IntSet
    union(IntSet other)
    Form a new set that is the union of two IntSets.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Method Details

    • getInstance

      public static IntEmptySet getInstance()

    • copy

      public IntSet copy()
      Description copied from class: IntSet
      Create a copy of this IntSet that leaves the original unchanged.
      Specified by:
      copy in class IntSet
      Returns:
      an IntSet containing the same integers. The result will not necessarily be the same class as the original. It will either be an immutable object, or a newly constructed object.

    • mutableCopy

      public IntSet mutableCopy()
      Description copied from class: IntSet
      Create a copy of this IntSet that contains the same set of integers.
      Specified by:
      mutableCopy in class IntSet
      Returns:
      an IntSet containing the same integers. The result will not necessarily be the same class as the original. It will always be a mutable object

    • isMutable

      public boolean isMutable()
      Description copied from class: IntSet
      Ask whether the set permits in-situ modifications using add() and remove()
      Overrides:
      isMutable in class IntSet
      Returns:
      true if the set permits in-situ modifications

    • clear

      public void clear()
      Description copied from class: IntSet
      Clear the contents of the IntSet (making it an empty set)
      Specified by:
      clear in class IntSet

    • size

      public int size()
      Description copied from class: IntSet
      Get the number of integers in the set
      Specified by:
      size in class IntSet
      Returns:
      the size of the set

    • isEmpty

      public boolean isEmpty()
      Description copied from class: IntSet
      Determine if the set is empty
      Specified by:
      isEmpty in class IntSet
      Returns:
      true if the set is empty, false if not

    • contains

      public boolean contains(int value)
      Description copied from class: IntSet
      Determine whether a particular integer is present in the set
      Specified by:
      contains in class IntSet
      Parameters:
      value - the integer under test
      Returns:
      true if value is present in the set, false if not

    • remove

      public boolean remove(int value)
      Description copied from class: IntSet
      Remove an integer from the set
      Specified by:
      remove in class IntSet
      Parameters:
      value - the integer to be removed
      Returns:
      true if the integer was present in the set, false if it was not present

    • add

      public boolean add(int value)
      Description copied from class: IntSet
      Add an integer to the set
      Specified by:
      add in class IntSet
      Parameters:
      value - the integer to be added
      Returns:
      true if the integer was added, false if it was already present

    • iterator

      public IntIterator iterator()
      Description copied from class: IntSet
      Get an iterator over the values
      Specified by:
      iterator in class IntSet
      Returns:
      an iterator over the integers in the set

    • union

      public IntSet union(IntSet other)
      Description copied from class: IntSet
      Form a new set that is the union of two IntSets.
      Overrides:
      union in class IntSet
      Parameters:
      other - the second set
      Returns:
      the union of the two sets

    • intersect

      public IntSet intersect(IntSet other)
      Description copied from class: IntSet
      Form a new set that is the intersection of two IntSets.
      Overrides:
      intersect in class IntSet
      Parameters:
      other - the second set
      Returns:
      the intersection of the two sets

    • except

      public IntSet except(IntSet other)
      Description copied from class: IntSet
      Form a new set that is the difference of this set and another set. The result will either be an immutable object, or a newly constructed object.
      Overrides:
      except in class IntSet
      Parameters:
      other - the second set
      Returns:
      the intersection of the two sets

    • containsAll

      public boolean containsAll(IntSet other)
      Description copied from class: IntSet
      Test if this set is a superset of another set
      Overrides:
      containsAll in class IntSet
      Parameters:
      other - the other set
      Returns:
      true if every item in the other set is also in this set