org.apache.commons.collections.bag
public class TransformedBag extends TransformedCollection implements Bag
Bag
to transform objects that are added.
The add methods are affected by this class. Thus objects must be removed or searched for using their transformed form. For example, if the transformation converts Strings to Integers, you must use the Integer form to remove objects.
This class is Serializable from Commons Collections 3.1.
Since: Commons Collections 3.0
Version: $Revision: 155406 $ $Date: 2005-02-26 12:55:26 +0000 (Sat, 26 Feb 2005) $
Constructor Summary | |
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protected | TransformedBag(Bag bag, Transformer transformer)
Constructor that wraps (not copies).
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Method Summary | |
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boolean | add(Object object, int nCopies) |
static Bag | decorate(Bag bag, Transformer transformer)
Factory method to create a transforming bag.
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protected Bag | getBag()
Gets the decorated bag.
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int | getCount(Object object) |
boolean | remove(Object object, int nCopies) |
Set | uniqueSet() |
If there are any elements already in the bag being decorated, they are NOT transformed.
Parameters: bag the bag to decorate, must not be null transformer the transformer to use for conversion, must not be null
Throws: IllegalArgumentException if bag or transformer is null
If there are any elements already in the bag being decorated, they are NOT transformed.
Parameters: bag the bag to decorate, must not be null transformer the transformer to use for conversion, must not be null
Returns: a new transformed Bag
Throws: IllegalArgumentException if bag or transformer is null
Returns: the decorated bag