1. /*
  2. * $Header: /home/cvs/jakarta-commons/primitives/src/java/org/apache/commons/collections/primitives/adapters/LongListList.java,v 1.3 2003/10/16 20:49:38 scolebourne Exp $
  3. * ====================================================================
  4. * The Apache Software License, Version 1.1
  5. *
  6. * Copyright (c) 2003 The Apache Software Foundation. All rights
  7. * reserved.
  8. *
  9. * Redistribution and use in source and binary forms, with or without
  10. * modification, are permitted provided that the following conditions
  11. * are met:
  12. *
  13. * 1. Redistributions of source code must retain the above copyright
  14. * notice, this list of conditions and the following disclaimer.
  15. *
  16. * 2. Redistributions in binary form must reproduce the above copyright
  17. * notice, this list of conditions and the following disclaimer in
  18. * the documentation and/or other materials provided with the
  19. * distribution.
  20. *
  21. * 3. The end-user documentation included with the redistribution, if
  22. * any, must include the following acknowledgement:
  23. * "This product includes software developed by the
  24. * Apache Software Foundation (http://www.apache.org/)."
  25. * Alternately, this acknowledgement may appear in the software itself,
  26. * if and wherever such third-party acknowledgements normally appear.
  27. *
  28. * 4. The names "The Jakarta Project", "Commons", and "Apache Software
  29. * Foundation" must not be used to endorse or promote products derived
  30. * from this software without prior written permission. For written
  31. * permission, please contact apache@apache.org.
  32. *
  33. * 5. Products derived from this software may not be called "Apache"
  34. * nor may "Apache" appear in their names without prior written
  35. * permission of the Apache Software Foundation.
  36. *
  37. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
  38. * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  39. * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  40. * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
  41. * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  42. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  43. * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  44. * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  45. * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  46. * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  47. * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  48. * SUCH DAMAGE.
  49. * ====================================================================
  50. *
  51. * This software consists of voluntary contributions made by many
  52. * individuals on behalf of the Apache Software Foundation. For more
  53. * information on the Apache Software Foundation, please see
  54. * <http://www.apache.org/>.
  55. *
  56. */
  57. package org.apache.commons.collections.primitives.adapters;
  58. import java.io.Serializable;
  59. import java.util.List;
  60. import org.apache.commons.collections.primitives.LongList;
  61. /**
  62. * Adapts an {@link LongList LongList} to the
  63. * {@link List List} interface.
  64. * <p />
  65. * This implementation delegates most methods
  66. * to the provided {@link LongList LongList}
  67. * implementation in the "obvious" way.
  68. *
  69. * @since Commons Primitives 1.0
  70. * @version $Revision: 1.3 $ $Date: 2003/10/16 20:49:38 $
  71. * @author Rodney Waldhoff
  72. */
  73. final public class LongListList extends AbstractLongListList implements Serializable {
  74. /**
  75. * Create a {@link List List} wrapping
  76. * the specified {@link LongList LongList}. When
  77. * the given <i>list</i> is <code>null</code>,
  78. * returns <code>null</code>.
  79. *
  80. * @param list the (possibly <code>null</code>)
  81. * {@link LongList LongList} to wrap
  82. * @return a {@link List List} wrapping the given
  83. * <i>list</i>, or <code>null</code> when <i>list</i> is
  84. * <code>null</code>.
  85. */
  86. public static List wrap(LongList list) {
  87. if(null == list) {
  88. return null;
  89. } else if(list instanceof Serializable) {
  90. return new LongListList(list);
  91. } else {
  92. return new NonSerializableLongListList(list);
  93. }
  94. }
  95. /**
  96. * Creates a {@link List List} wrapping
  97. * the specified {@link LongList LongList}.
  98. * @see #wrap
  99. */
  100. public LongListList(LongList list) {
  101. _list = list;
  102. }
  103. protected LongList getLongList() {
  104. return _list;
  105. }
  106. private LongList _list = null;
  107. }