Coverage Report - net.wotonomy.control.EOAndQualifier
 
Classes in this File Line Coverage Branch Coverage Complexity
EOAndQualifier
0% 
0% 
2.286
 
 1  
 /*
 2  
 Wotonomy: OpenStep design patterns for pure Java applications.
 3  
 Copyright (C) 2001 Intersect Software Corporation
 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.control;
 20  
 
 21  
 import java.util.Iterator;
 22  
 import java.util.LinkedList;
 23  
 import java.util.List;
 24  
 
 25  
 import net.wotonomy.foundation.NSArray;
 26  
 import net.wotonomy.foundation.NSDictionary;
 27  
 import net.wotonomy.foundation.NSMutableArray;
 28  
 import net.wotonomy.foundation.internal.WotonomyException;
 29  
 
 30  
 /**
 31  
 * EOAndQualifier contains other EOQualifiers,
 32  
 * evaluating as true only if all of the contained
 33  
 * qualifiers evaluate as true.
 34  
 *
 35  
 * @author michael@mpowers.net
 36  
 * @author yjcheung@intersectsoft.com
 37  
 * @author $Author: cgruber $
 38  
 * @version $Revision: 894 $
 39  
 */
 40  
 public class EOAndQualifier extends EOQualifier
 41  
         implements EOKeyValueArchiving, EOQualifierEvaluation
 42  
 {
 43  
     private List qualifiers;
 44  
 
 45  0
     public EOAndQualifier(
 46  
         List aQualifierList )
 47  0
     {
 48  0
         qualifiers = new LinkedList( aQualifierList );
 49  0
     }
 50  
 
 51  
     /**
 52  
     * Returns a List of qualifiers contained by this qualifier.
 53  
     */
 54  
     public NSArray qualifiers()
 55  
     {
 56  0
         return new NSArray( qualifiers );
 57  
     }
 58  
 
 59  
     /**
 60  
      * Add a new qualifier to the list.
 61  
      */
 62  
     public void addQualifier(EOQualifier qualifier)
 63  
     {
 64  0
         qualifiers.add(qualifier);
 65  0
     }
 66  
 
 67  
     /**
 68  
     * Evaluates this qualifier for the specified object,
 69  
     * and returns whether the object is qualified.
 70  
     * selector() is invoked on the value for key() on the
 71  
     * specified object, with value() as the parameter.
 72  
     *
 73  
     * Note: this has the lazy "and" implementation. Ex.
 74  
     * Qal1 and Qal2. If the Qal1 is evaluated to be false, then it returns
 75  
     * false without evaluating Qa12.
 76  
     */
 77  
     public boolean evaluateWithObject( Object anObject )
 78  
     {
 79  0
         boolean retVal = true;
 80  0
         Iterator it = qualifiers.iterator();
 81  0
         while (it.hasNext() && retVal)
 82  
         {
 83  0
             retVal = ((EOQualifier) it.next()).evaluateWithObject(anObject);
 84  0
         }
 85  0
         return retVal;
 86  
     }
 87  
 
 88  
     /**
 89  
     * Returns a string representation of this qualifier.
 90  
     */
 91  
     public String toString()
 92  
     {
 93  0
          StringBuffer myBuf = new StringBuffer("(");
 94  0
          Iterator it = qualifiers.iterator();
 95  0
          while (it.hasNext())
 96  
          {
 97  0
             myBuf = myBuf.append(((EOQualifier) it.next()).toString()).append(" and ");
 98  0
          }
 99  0
          String myStr = myBuf.toString();
 100  0
          myStr = myStr.substring(0, myStr.lastIndexOf(" and")).concat(")");
 101  0
          return myStr;
 102  
     }
 103  
 
 104  
         public static Object decodeWithKeyValueUnarchiver(EOKeyValueUnarchiver arch) {
 105  0
                 NSArray a = (NSArray)arch.decodeObjectForKey("qualifiers");
 106  0
                 if (a == null)
 107  0
                         return null;
 108  0
                 NSMutableArray l = new NSMutableArray();
 109  0
                 for (int i = 0; i < a.count(); i++) {
 110  0
                         NSDictionary d = (NSDictionary)a.objectAtIndex(i);
 111  0
                         EOKeyValueUnarchiver ua = new EOKeyValueUnarchiver(d);
 112  0
                         EOQualifier q = (EOQualifier)EOQualifier.decodeWithKeyValueUnarchiver(ua);
 113  0
                         if (q != null)
 114  0
                                 l.addObject(q);
 115  
                 }
 116  0
                 return new EOAndQualifier(l);
 117  
         }
 118  
 
 119  
         public void encodeWithKeyValueArchiver(EOKeyValueArchiver arch) {
 120  0
                 arch.encodeObject("EOAndQualifier", "class");
 121  0
                 NSMutableArray arr = new NSMutableArray(qualifiers.size());
 122  0
                 for  (int i = 0; i < qualifiers.size(); i++) {
 123  0
                         EOQualifier q = (EOQualifier)qualifiers.get(i);
 124  0
                         if (q instanceof EOKeyValueArchiving) {
 125  0
                                 EOKeyValueArchiver ar2 = new EOKeyValueArchiver();
 126  0
                                 ((EOKeyValueArchiving)q).encodeWithKeyValueArchiver(ar2);
 127  0
                                 arr.addObject(ar2.dictionary());
 128  0
                         } else
 129  0
                                 throw new WotonomyException("Cannot archive instance of " + q.getClass().getName());
 130  
                 }
 131  0
                 arch.encodeObject(arr, "qualifiers");
 132  0
         }
 133  
 
 134  
 }
 135  
 
 136  
 /*
 137  
  * $Log$
 138  
  * Revision 1.2  2006/02/16 16:47:14  cgruber
 139  
  * Move some classes in to "internal" packages and re-work imports, etc.
 140  
  *
 141  
  * Also use UnsupportedOperationExceptions where appropriate, instead of WotonomyExceptions.
 142  
  *
 143  
  * Revision 1.1  2006/02/16 13:19:57  cgruber
 144  
  * Check in all sources in eclipse-friendly maven-enabled packages.
 145  
  *
 146  
  * Revision 1.6  2003/08/12 01:43:04  chochos
 147  
  * formally implement EOQualifierEvaluation
 148  
  *
 149  
  * Revision 1.5  2003/08/09 01:22:51  chochos
 150  
  * qualifiers implement EOKeyValueArchiving
 151  
  *
 152  
  * Revision 1.4  2003/08/06 23:07:52  chochos
 153  
  * general code cleanup (mostly, removing unused imports)
 154  
  *
 155  
  * Revision 1.3  2001/10/31 15:25:14  mpowers
 156  
  * Cleanup of qualifiers.
 157  
  *
 158  
  * Revision 1.2  2001/10/30 22:57:28  mpowers
 159  
  * EOQualifier framework is now working.
 160  
  *
 161  
  * Revision 1.1  2001/09/13 15:25:56  mpowers
 162  
  * Started implementation of the EOQualifier framework.
 163  
  *
 164  
  *
 165  
  */
 166  
 
 167