Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
EOOrQualifier |
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| 2.5714285714285716;2.571 |
1 | /* |
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2 | Wotonomy: OpenStep design patterns for pure Java applications. |
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3 | Copyright (C) 2001 Intersect Software Corporation |
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4 | ||
5 | This library is free software; you can redistribute it and/or |
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6 | modify it under the terms of the GNU Lesser General Public |
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7 | License as published by the Free Software Foundation; either |
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8 | version 2.1 of the License, or (at your option) any later version. |
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9 | ||
10 | This library is distributed in the hope that it will be useful, |
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11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 | Lesser General Public License for more details. |
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14 | ||
15 | You should have received a copy of the GNU Lesser General Public |
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16 | License along with this library; if not, see http://www.gnu.org |
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17 | */ |
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18 | ||
19 | package net.wotonomy.control; |
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20 | ||
21 | import java.util.Iterator; |
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22 | import java.util.LinkedList; |
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23 | import java.util.List; |
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24 | ||
25 | import net.wotonomy.foundation.NSArray; |
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26 | import net.wotonomy.foundation.NSDictionary; |
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27 | import net.wotonomy.foundation.NSMutableArray; |
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28 | import net.wotonomy.foundation.internal.WotonomyException; |
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29 | ||
30 | /** |
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31 | * EOOrQualifier contains other EOQualifiers, |
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32 | * evaluating as true if any of the contained |
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33 | * qualifiers evaluate as true. |
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34 | * |
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35 | * @author michael@mpowers.net |
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36 | * @author yjcheung@intersectsoft.com |
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37 | * @author $Author: cgruber $ |
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38 | * @version $Revision: 894 $ |
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39 | */ |
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40 | public class EOOrQualifier extends EOQualifier |
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41 | implements EOKeyValueArchiving, EOQualifierEvaluation |
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42 | { |
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43 | private List qualifiers; |
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44 | ||
45 | 0 | public EOOrQualifier( |
46 | List aQualifierList ) |
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47 | 0 | { |
48 | 0 | qualifiers = new LinkedList( aQualifierList ); |
49 | 0 | } |
50 | ||
51 | /** |
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52 | * Returns a List of qualifiers contained by this qualifier. |
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53 | */ |
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54 | public NSArray qualifiers() |
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55 | { |
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56 | 0 | return new NSArray( qualifiers ); |
57 | } |
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58 | ||
59 | /** |
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60 | * Add a new qualifier to the list. |
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61 | */ |
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62 | public void addQualifier(EOQualifier qualifier) |
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63 | { |
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64 | 0 | qualifiers.add(qualifier); |
65 | 0 | } |
66 | ||
67 | /** |
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68 | * Evaluates this qualifier for the specified object, |
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69 | * and returns whether the object is qualified. |
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70 | * selector() is invoked on the value for key() on the |
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71 | * specified object, with value() as the parameter. |
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72 | * |
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73 | * Note: this has a lazy "or" implementation. Ex. Qal1 or Qal2. |
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74 | * If Qal1 is evaluated to be true, then it returns true without |
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75 | * further evaluate Qal2. |
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76 | */ |
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77 | public boolean evaluateWithObject( Object anObject ) |
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78 | { |
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79 | 0 | Iterator it = qualifiers.iterator(); |
80 | 0 | while( it.hasNext() ) |
81 | { |
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82 | 0 | if ( ((EOQualifier) it.next()).evaluateWithObject(anObject) ) |
83 | { |
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84 | 0 | return true; |
85 | } |
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86 | } |
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87 | 0 | return false; |
88 | } |
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89 | ||
90 | /** |
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91 | * Returns a string representation of this qualifier. |
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92 | */ |
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93 | public String toString() |
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94 | { |
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95 | 0 | StringBuffer myBuf = new StringBuffer("("); |
96 | 0 | Iterator it = qualifiers.iterator(); |
97 | 0 | while (it.hasNext()) |
98 | { |
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99 | 0 | myBuf = myBuf.append(((EOQualifier) it.next()).toString()).append(" or "); |
100 | 0 | } |
101 | 0 | String myStr = myBuf.toString(); |
102 | 0 | myStr = myStr.substring(0, myStr.lastIndexOf(" or ")).concat(")"); |
103 | 0 | return myStr; |
104 | } |
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105 | ||
106 | public static Object decodeWithKeyValueUnarchiver(EOKeyValueUnarchiver arch) { |
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107 | 0 | NSArray a = (NSArray)arch.decodeObjectForKey("qualifiers"); |
108 | 0 | if (a == null) |
109 | 0 | return null; |
110 | 0 | NSMutableArray l = new NSMutableArray(); |
111 | 0 | for (int i = 0; i < a.count(); i++) { |
112 | 0 | NSDictionary d = (NSDictionary)a.objectAtIndex(i); |
113 | 0 | EOKeyValueUnarchiver ua = new EOKeyValueUnarchiver(d); |
114 | 0 | EOQualifier q = (EOQualifier)EOQualifier.decodeWithKeyValueUnarchiver(ua); |
115 | 0 | if (q != null) |
116 | 0 | l.addObject(q); |
117 | } |
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118 | 0 | return new EOAndQualifier(l); |
119 | } |
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120 | ||
121 | public void encodeWithKeyValueArchiver(EOKeyValueArchiver arch) { |
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122 | 0 | arch.encodeObject("EOOrQualifier", "class"); |
123 | 0 | NSMutableArray arr = new NSMutableArray(qualifiers.size()); |
124 | 0 | for (int i = 0; i < qualifiers.size(); i++) { |
125 | 0 | EOQualifier q = (EOQualifier)qualifiers.get(i); |
126 | 0 | if (q instanceof EOKeyValueArchiving) { |
127 | 0 | EOKeyValueArchiver ar2 = new EOKeyValueArchiver(); |
128 | 0 | ((EOKeyValueArchiving)q).encodeWithKeyValueArchiver(ar2); |
129 | 0 | arr.addObject(ar2.dictionary()); |
130 | 0 | } else |
131 | 0 | throw new WotonomyException("Cannot archive instance of " + q.getClass().getName()); |
132 | } |
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133 | 0 | arch.encodeObject(arr, "qualifiers"); |
134 | 0 | } |
135 | ||
136 | } |
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137 | ||
138 | /* |
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139 | * $Log$ |
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140 | * Revision 1.2 2006/02/16 16:47:14 cgruber |
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141 | * Move some classes in to "internal" packages and re-work imports, etc. |
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142 | * |
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143 | * Also use UnsupportedOperationExceptions where appropriate, instead of WotonomyExceptions. |
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144 | * |
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145 | * Revision 1.1 2006/02/16 13:19:57 cgruber |
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146 | * Check in all sources in eclipse-friendly maven-enabled packages. |
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147 | * |
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148 | * Revision 1.6 2003/08/12 01:43:04 chochos |
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149 | * formally implement EOQualifierEvaluation |
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150 | * |
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151 | * Revision 1.5 2003/08/09 01:22:51 chochos |
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152 | * qualifiers implement EOKeyValueArchiving |
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153 | * |
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154 | * Revision 1.4 2003/08/06 23:07:52 chochos |
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155 | * general code cleanup (mostly, removing unused imports) |
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156 | * |
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157 | * Revision 1.3 2001/10/31 15:25:14 mpowers |
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158 | * Cleanup of qualifiers. |
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159 | * |
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160 | * Revision 1.2 2001/10/30 22:57:28 mpowers |
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161 | * EOQualifier framework is now working. |
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162 | * |
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163 | * Revision 1.1 2001/09/13 15:25:56 mpowers |
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164 | * Started implementation of the EOQualifier framework. |
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165 | * |
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166 | * |
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167 | */ |
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168 | ||
169 |