Interface ObjectList

  • All Superinterfaces:
    Collection, Iterable, List
    All Known Implementing Classes:
    ObjectListImpl

    public interface ObjectList
    extends List

    The ObjectList is an immutable ordered collection of Object.

    Version:
    $Id$
    Author:
    Ankit Pasricha, IBM
    • Method Detail

      • getLength

        int getLength()
        The number of Objects in the list. The range of valid child object indices is 0 to length-1 inclusive.
      • contains

        boolean contains​(Object item)
        Checks if the Object item is a member of this list.
        Specified by:
        contains in interface Collection
        Specified by:
        contains in interface List
        Parameters:
        item - Object whose presence in this list is to be tested.
        Returns:
        True if this list contains the Object item.
      • item

        Object item​(int index)
        Returns the indexth item in the collection or null if index is greater than or equal to the number of objects in the list. The index starts at 0.
        Parameters:
        index - index into the collection.
        Returns:
        The Object at the indexth position in the ObjectList, or null if the index specified is not valid - greater than or equal to the number of items in the list or less than zero.