org.millscript.millscript.datatypes
Class NullSet

java.lang.Object
  java.util.AbstractCollection<E>
      java.util.AbstractSet<java.lang.Object>
          org.millscript.millscript.datatypes.NullSet

All Implemented Interfaces:

java.lang.Iterable<java.lang.Object>, java.util.Collection<java.lang.Object>, java.util.Set<java.lang.Object>

Deprecated. As of MillScript 10.2.0, this functionallity has been subsumed by the MillScript-Util project and it's Map API, see IEmptyMap.

@Deprecated
public class NullSet
extends java.util.AbstractSet<java.lang.Object>

An implementation of Set, that will never contain any elements. This is used in the implementation of NullMapWithDefault.

Constructor Summary

NullSet()
Deprecated.

Method Summary

java.util.Iterator<java.lang.Object>	iterator() Deprecated. Returns a special NullIterator, as this set will never contain any values.
int	size() Deprecated. Always returns zero, as this set never contains any values.

Methods inherited from class java.util.AbstractSet

equals, hashCode, removeAll

Methods inherited from class java.util.AbstractCollection

add, addAll, clear, contains, containsAll, isEmpty, remove, retainAll, toArray, toArray, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Set

add, addAll, clear, contains, containsAll, isEmpty, remove, retainAll, toArray, toArray

Constructor Detail

NullSet

public NullSet()

Deprecated.

Method Detail

size

public int size()

Deprecated.

Always returns zero, as this set never contains any values.

Specified by:

size in interface java.util.Collection<java.lang.Object>

Specified by:

size in interface java.util.Set<java.lang.Object>

Specified by:

size in class java.util.AbstractCollection<java.lang.Object>

Returns:

zero, as this set never contains any values

iterator

public java.util.Iterator<java.lang.Object> iterator()

Deprecated.

Returns a special NullIterator, as this set will never contain any values.

Specified by:

iterator in interface java.lang.Iterable<java.lang.Object>

Specified by:

iterator in interface java.util.Collection<java.lang.Object>

Specified by:

iterator in interface java.util.Set<java.lang.Object>

Specified by:

iterator in class java.util.AbstractCollection<java.lang.Object>

Returns:

a iterator with no items