/**
* Factory method to create an unmodifiable map.
* <p>
* If the map passed in is already unmodifiable, it is returned.
*
* @param map the map to decorate, must not be null
* @return an unmodifiable SortedBidiMap
* @throws IllegalArgumentException if map is null
*/
public static SortedBidiMap decorate(SortedBidiMap map)
{
if (map is Unmodifiable)
{
return map;
}
return new UnmodifiableSortedBidiMap(map);
}
/**
* Factory method to create an unmodifiable map.
* <p>
* If the map passed in is already unmodifiable, it is returned.
*
* @param map the map to decorate, must not be null
* @return an unmodifiable SortedBidiMap
* @throws IllegalArgumentException if map is null
*/
public static SortedBidiMap decorate(SortedBidiMap map)
{
if (map is Unmodifiable)
{
return(map);
}
return(new UnmodifiableSortedBidiMap(map));
}
//-----------------------------------------------------------------------
/**
* Constructor that wraps (not copies).
*
* @param map the map to decorate, must not be null
* @throws IllegalArgumentException if map is null
*/
private UnmodifiableSortedBidiMap(SortedBidiMap map)
: base(map)
{
}
/**
* Constructor that wraps (not copies).
*
* @param map the map to decorate, must not be null
* @throws IllegalArgumentException if the collection is null
*/
public AbstractSortedBidiMapDecorator(SortedBidiMap map)
: base(map)
{
}
/**
* Constructor that wraps (not copies).
*
* @param map the map to decorate, must not be null
* @throws IllegalArgumentException if the collection is null
*/
public AbstractSortedBidiMapDecorator(SortedBidiMap map)
: base(map)
{
}
//-----------------------------------------------------------------------
/**
* Constructor that wraps (not copies).
*
* @param map the map to decorate, must not be null
* @throws IllegalArgumentException if map is null
*/
private UnmodifiableSortedBidiMap(SortedBidiMap map)
: base(map)
{
}