Class SingletonList

  • All Implemented Interfaces:
    java.lang.Iterable, java.util.Collection, java.util.List

    public class SingletonList
    extends java.util.AbstractList
    A utility class that implements singleton lists (to avoid dependency on JDK 1.3). Many operations including add() and remove() throw UnsupportedOperationExceptions.
    Version:
    1.2b12
    Author:
    Attila Szegedi
    • Field Summary

      • Fields inherited from class java.util.AbstractList

        modCount
    • Constructor Summary

      Constructors 
      Constructor Description
      SingletonList​(java.lang.Object element)
      Creates a new singleton list.
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.Object get​(int index)
      Returns the single element in the list.
      int size()
      Returns 1.
      • Methods inherited from class java.util.AbstractList

        add, add, addAll, clear, equals, hashCode, indexOf, iterator, lastIndexOf, listIterator, listIterator, remove, removeRange, set, subList
      • Methods inherited from class java.util.AbstractCollection

        addAll, contains, containsAll, isEmpty, remove, removeAll, 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.Collection

        parallelStream, removeIf, stream, toArray
      • Methods inherited from interface java.lang.Iterable

        forEach
      • Methods inherited from interface java.util.List

        addAll, contains, containsAll, isEmpty, remove, removeAll, replaceAll, retainAll, sort, spliterator, toArray, toArray
    • Constructor Detail

      • SingletonList

        public SingletonList​(java.lang.Object element)
        Creates a new singleton list.
        Parameters:
        element - the single member of the list
    • Method Detail

      • size

        public int size()
        Returns 1.
        Specified by:
        size in interface java.util.Collection
        Specified by:
        size in interface java.util.List
        Specified by:
        size in class java.util.AbstractCollection
        Returns:
        1
      • get

        public java.lang.Object get​(int index)
        Returns the single element in the list.
        Specified by:
        get in interface java.util.List
        Specified by:
        get in class java.util.AbstractList
        Returns:
        the only element in the list
        Throws:
        java.lang.IndexOutOfBoundsException - if index is not 0