org.jaxen.util
Class SingletonList

java.lang.Object
  extended by java.util.AbstractCollection<E>
      extended by java.util.AbstractList
          extended by org.jaxen.util.SingletonList
All Implemented Interfaces:
Iterable, Collection, List

public class SingletonList
extends 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
SingletonList(Object element)
          Creates a new singleton list.
 
Method Summary
 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.List
addAll, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray
 

Constructor Detail

SingletonList

public SingletonList(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 Collection
Specified by:
size in interface List
Specified by:
size in class AbstractCollection
Returns:
1

get

public Object get(int index)
Returns the single element in the list.

Specified by:
get in interface List
Specified by:
get in class AbstractList
Returns:
the only element in the list
Throws:
IndexOutOfBoundsException - if index is not 0


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