weiss.util
Interface List

All Superinterfaces:

Collection, java.io.Serializable

All Known Implementing Classes:

LinkedList, ArrayList

public interface List

extends Collection

List interface. The version in java.util places the union of sensible LinkedList and ArrayList methods in this interface. We place the useful intersection here instead, which is arguably empty.

Method Summary

java.lang.Object	get(int idx) Returns the item at position idx.
ListIterator	listIterator(int pos) Obtains a ListIterator object used to traverse the collection bidirectionally.
java.lang.Object	set(int idx, java.lang.Object newVal) Changes the item at position idx.

Methods inherited from interface weiss.util.Collection

add, clear, contains, isEmpty, iterator, remove, size, toArray

Method Detail

get

public java.lang.Object get(int idx)

Returns the item at position idx.

Parameters:

idx - the index to search in.

Throws:

IndexOutOfBoundsException - if index is out of range.

set

public java.lang.Object set(int idx,
                            java.lang.Object newVal)

Changes the item at position idx.

Parameters:

idx - the index to change.

newVal - the new value.

Returns:

the old value.

Throws:

IndexOutOfBoundsException - if index is out of range.

listIterator

public ListIterator listIterator(int pos)

Obtains a ListIterator object used to traverse the collection bidirectionally.

Parameters:

idx - the index to start the iterator. Use size() to do complete reverse traversal. Use 0 to do complete forward traversal.

Throws:

IndexOutOfBoundsException - if idx is not between 0 and size(), inclusive.