gnu.java.security.util

Class SimpleList

Implemented Interfaces:
Collection, Iterable, List

public final class SimpleList
extends AbstractList

A simple way to create immutable n-tuples. This class can be created with up to four elements specified via one of the constructors, or with a collection of arbitrary size.

Field Summary

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

SimpleList()
Create the empty list.
SimpleList(Object element)
Create a singleton list.
SimpleList(Object e1, Object e2)
Create an ordered pair (2-tuple).
SimpleList(Object e1, Object e2, Object e3)
Create a 3-tuple.
SimpleList(Object e1, Object e2, Object e3, Object e4)
Create a 4-tuple.
SimpleList(Collection c)
Create an n-tuple of arbitrary size.

Method Summary

Object
get(int index)
Returns the elements at the specified position in the list.
int
size()
Get the number of elements in this list.
String
toString()
Creates a String representation of the Collection.

Methods inherited from class java.util.AbstractList

add, add, addAll, clear, equals, get, hashCode, indexOf, iterator, lastIndexOf, listIterator, listIterator, remove, removeRange, set, subList

Methods inherited from class java.util.AbstractCollection

add, addAll, clear, contains, containsAll, isEmpty, iterator, remove, removeAll, retainAll, size, toArray, toArray, toString

Methods inherited from class java.lang.Object

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

Constructor Details

SimpleList

public SimpleList()
Create the empty list.

SimpleList

public SimpleList(Object element)
Create a singleton list.
Parameters:
element - The first element.

SimpleList

public SimpleList(Object e1,
                  Object e2)
Create an ordered pair (2-tuple).
Parameters:
e1 - The first element.
e2 - The second element.

SimpleList

public SimpleList(Object e1,
                  Object e2,
                  Object e3)
Create a 3-tuple.
Parameters:
e1 - The first element.
e2 - The second element.
e3 - The third element.

SimpleList

public SimpleList(Object e1,
                  Object e2,
                  Object e3,
                  Object e4)
Create a 4-tuple.
Parameters:
e1 - The first element.
e2 - The second element.
e3 - The third element.
e4 - The fourth element.

SimpleList

public SimpleList(Collection c)
Create an n-tuple of arbitrary size. Even if the supplied collection has no natural order, the created n-tuple will have the order that the elements are returned by the collection's iterator.
Parameters:
c - The collection.

Method Details

get

public Object get(int index)
Returns the elements at the specified position in the list.
Specified by:
get in interface List
Overrides:
get in interface AbstractList
Parameters:
index - the element to return
Returns:
the element at that position
Throws:
IndexOutOfBoundsException - if index < 0 || index >= size()

size

public int size()
Get the number of elements in this list. If the list contains more than Integer.MAX_VALUE elements, return Integer.MAX_VALUE.
Specified by:
size in interface List
size in interface Collection
Overrides:
size in interface AbstractCollection
Returns:
the number of elements in the list

toString

public String toString()
Creates a String representation of the Collection. The string returned is of the form "[a, b, ...]" where a and b etc are the results of calling toString on the elements of the collection. This implementation obtains an Iterator over the Collection and adds each element to a StringBuffer as it is returned by the iterator. "" is inserted when the collection contains itself (only works for direct containment, not for collections inside collections).
Overrides:
toString in interface AbstractCollection
Returns:
a String representation of the Collection

SimpleList.java -- simple way to make tuples. Copyright (C) 2004, 2006 Free Software Foundation, Inc. This file is a part of GNU Classpath. GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. GNU Classpath is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Classpath; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version.