org.jaxen.util
Class SingletonList
java.lang.Object
java.util.AbstractCollection<E>
java.util.AbstractList
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
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 |
SingletonList
public SingletonList(Object element)
- Creates a new singleton list.
- Parameters:
element
- the single member of the list
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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