| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
| DataKey |
|
| 2.3;2.3 |
| 1 | /* |
|
| 2 | Wotonomy: OpenStep design patterns for pure Java applications. |
|
| 3 | Copyright (C) 2000 Michael Powers |
|
| 4 | ||
| 5 | This library is free software; you can redistribute it and/or |
|
| 6 | modify it under the terms of the GNU Lesser General Public |
|
| 7 | License as published by the Free Software Foundation; either |
|
| 8 | version 2.1 of the License, or (at your option) any later version. |
|
| 9 | ||
| 10 | This library is distributed in the hope that it will be useful, |
|
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|
| 13 | Lesser General Public License for more details. |
|
| 14 | ||
| 15 | You should have received a copy of the GNU Lesser General Public |
|
| 16 | License along with this library; if not, see http://www.gnu.org |
|
| 17 | */ |
|
| 18 | ||
| 19 | package net.wotonomy.datastore; |
|
| 20 | ||
| 21 | import java.io.Serializable; |
|
| 22 | ||
| 23 | import net.wotonomy.foundation.internal.ValueConverter; |
|
| 24 | ||
| 25 | public class DataKey implements Comparable, Serializable, Cloneable |
|
| 26 | { |
|
| 27 | static final long serialVersionUID = 8421127539579065705L; |
|
| 28 | ||
| 29 | Long key; |
|
| 30 | ||
| 31 | 0 | public DataKey() |
| 32 | 0 | { |
| 33 | 0 | key = new Long( 0 ); |
| 34 | 0 | } |
| 35 | ||
| 36 | /** |
|
| 37 | * Converts string representation to new object. |
|
| 38 | */ |
|
| 39 | public DataKey( String aString ) |
|
| 40 | { |
|
| 41 | 0 | this(); |
| 42 | 0 | setKeyString( aString ); |
| 43 | 0 | } |
| 44 | ||
| 45 | public int hashCode() |
|
| 46 | { |
|
| 47 | 0 | return key.intValue(); |
| 48 | } |
|
| 49 | ||
| 50 | public void increment() |
|
| 51 | { |
|
| 52 | 0 | key = new Long( key.longValue() + 1 ); |
| 53 | 0 | } |
| 54 | ||
| 55 | public Object clone() |
|
| 56 | { |
|
| 57 | 0 | return new DataKey( this.toString() ); |
| 58 | } |
|
| 59 | ||
| 60 | public String toString() |
|
| 61 | { |
|
| 62 | 0 | return key.toString(); |
| 63 | } |
|
| 64 | ||
| 65 | public String getKeyString() |
|
| 66 | { |
|
| 67 | 0 | return key.toString(); |
| 68 | } |
|
| 69 | ||
| 70 | public void setKeyString( String aString ) |
|
| 71 | { |
|
| 72 | 0 | Long parsed = ValueConverter.getLong( aString ); |
| 73 | 0 | if ( parsed != null ) key = parsed; |
| 74 | 0 | } |
| 75 | ||
| 76 | public boolean equals( Object anObject ) |
|
| 77 | { |
|
| 78 | 0 | if ( anObject instanceof String ) |
| 79 | { |
|
| 80 | 0 | if ( toString().equals( anObject ) ) |
| 81 | { |
|
| 82 | 0 | return true; |
| 83 | } |
|
| 84 | } |
|
| 85 | 0 | if ( ! ( anObject instanceof DataKey ) ) return false; |
| 86 | 0 | return key.equals( ((DataKey)anObject).key ); |
| 87 | } |
|
| 88 | ||
| 89 | public int compareTo( Object anObject ) |
|
| 90 | { |
|
| 91 | 0 | if ( anObject instanceof String ) |
| 92 | { |
|
| 93 | 0 | if ( toString().equals( anObject ) ) |
| 94 | { |
|
| 95 | 0 | return 0; |
| 96 | } |
|
| 97 | } |
|
| 98 | 0 | if ( ! ( anObject instanceof DataKey ) ) |
| 99 | { |
|
| 100 | 0 | Long converted = (Long) ValueConverter.getLong( anObject ); |
| 101 | 0 | if ( converted != null ) |
| 102 | { |
|
| 103 | 0 | return (int) ( key.longValue() - converted.longValue() ); |
| 104 | } |
|
| 105 | 0 | return 0; |
| 106 | }; |
|
| 107 | 0 | return (int) ( key.longValue() - ((DataKey)anObject).key.longValue() ); |
| 108 | } |
|
| 109 | } |
|
| 110 | ||
| 111 | /* |
|
| 112 | * $Log$ |
|
| 113 | * Revision 1.2 2006/02/19 16:26:19 cgruber |
|
| 114 | * Move non-unit-test code to tests project |
|
| 115 | * Fix up code to work with proper imports |
|
| 116 | * Fix maven dependencies. |
|
| 117 | * |
|
| 118 | * Revision 1.1 2006/02/16 13:18:56 cgruber |
|
| 119 | * Check in all sources in eclipse-friendly maven-enabled packages. |
|
| 120 | * |
|
| 121 | * Revision 1.4 2003/08/14 19:29:38 chochos |
|
| 122 | * minor cleanup (imports, static method calls, etc) |
|
| 123 | * |
|
| 124 | * Revision 1.3 2001/02/23 23:44:44 mpowers |
|
| 125 | * Fixes for hashcode to ensure proper key comparison. |
|
| 126 | * |
|
| 127 | * Revision 1.2 2001/02/15 21:12:41 mpowers |
|
| 128 | * Added accessors for key throughout the api. This breaks compatibility. |
|
| 129 | * insertObject now returns the permanent key for the newly created object. |
|
| 130 | * The old way returned a copy of the object which was an additional read |
|
| 131 | * that was often ignored. Now you can read it only if you need it. |
|
| 132 | * Furthermore, there was not other way of getting the permanent key. |
|
| 133 | * |
|
| 134 | * Revision 1.1.1.1 2000/12/21 15:47:04 mpowers |
|
| 135 | * Contributing wotonomy. |
|
| 136 | * |
|
| 137 | * Revision 1.2 2000/12/20 16:25:36 michael |
|
| 138 | * Added log to all files. |
|
| 139 | * |
|
| 140 | * |
|
| 141 | */ |
|
| 142 |