1. /*
  2. * Copyright 2002-2004 The Apache Software Foundation
  3. *
  4. * Licensed under the Apache License, Version 2.0 (the "License");
  5. * you may not use this file except in compliance with the License.
  6. * You may obtain a copy of the License at
  7. *
  8. * http://www.apache.org/licenses/LICENSE-2.0
  9. *
  10. * Unless required by applicable law or agreed to in writing, software
  11. * distributed under the License is distributed on an "AS IS" BASIS,
  12. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13. * See the License for the specific language governing permissions and
  14. * limitations under the License.
  15. */
  16. package org.apache.commons.collections;
  17. import java.util.Collection;
  18. import java.util.HashMap;
  19. /**
  20. * A {@link Bag} that is backed by a {@link HashMap}.
  21. *
  22. * @deprecated Moved to bag subpackage and rewritten internally. Due to be removed in v4.0.
  23. * @since Commons Collections 2.0
  24. * @version $Revision: 1.13 $ $Date: 2004/02/18 01:15:42 $
  25. *
  26. * @author Chuck Burdick
  27. */
  28. public class HashBag extends DefaultMapBag implements Bag {
  29. /**
  30. * Constructs an empty <Code>HashBag</Code>.
  31. */
  32. public HashBag() {
  33. super(new HashMap());
  34. }
  35. /**
  36. * Constructs a {@link Bag} containing all the members of the given
  37. * collection.
  38. *
  39. * @param coll a collection to copy into this bag
  40. */
  41. public HashBag(Collection coll) {
  42. this();
  43. addAll(coll);
  44. }
  45. }