Initial import from SVN

1 files changed, 167 insertions, 0 deletions

diff --git a/projects/net.wotonomy.persistence/src/main/java/net/wotonomy/control/EOAndQualifier.java b/projects/net.wotonomy.persistence/src/main/java/net/wotonomy/control/EOAndQualifier.java
new file mode 100644
index 0000000..049eb33
--- /dev/null
+++ b/projects/net.wotonomy.persistence/src/main/java/net/wotonomy/control/EOAndQualifier.java
@@ -0,0 +1,167 @@
+/*
+Wotonomy: OpenStep design patterns for pure Java applications.
+Copyright (C) 2001 Intersect Software Corporation
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, see http://www.gnu.org
+*/
+
+package net.wotonomy.control;
+
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+
+import net.wotonomy.foundation.NSArray;
+import net.wotonomy.foundation.NSDictionary;
+import net.wotonomy.foundation.NSMutableArray;
+import net.wotonomy.foundation.internal.WotonomyException;
+
+/**
+* EOAndQualifier contains other EOQualifiers,
+* evaluating as true only if all of the contained
+* qualifiers evaluate as true.
+*
+* @author michael@mpowers.net
+* @author yjcheung@intersectsoft.com
+* @author $Author: cgruber $
+* @version $Revision: 894 $
+*/
+public class EOAndQualifier extends EOQualifier
+	implements EOKeyValueArchiving, EOQualifierEvaluation
+{
+    private List qualifiers;
+
+    public EOAndQualifier(
+        List aQualifierList )
+    {
+        qualifiers = new LinkedList( aQualifierList );
+    }
+
+    /**
+    * Returns a List of qualifiers contained by this qualifier.
+    */
+    public NSArray qualifiers()
+    {
+        return new NSArray( qualifiers );
+    }
+
+    /**
+     * Add a new qualifier to the list.
+     */
+    public void addQualifier(EOQualifier qualifier)
+    {
+        qualifiers.add(qualifier);
+    }
+
+    /**
+    * Evaluates this qualifier for the specified object,
+    * and returns whether the object is qualified.
+    * selector() is invoked on the value for key() on the
+    * specified object, with value() as the parameter.
+    *
+    * Note: this has the lazy "and" implementation. Ex.
+    * Qal1 and Qal2. If the Qal1 is evaluated to be false, then it returns
+    * false without evaluating Qa12.
+    */
+    public boolean evaluateWithObject( Object anObject )
+    {
+        boolean retVal = true;
+        Iterator it = qualifiers.iterator();
+        while (it.hasNext() && retVal)
+        {
+            retVal = ((EOQualifier) it.next()).evaluateWithObject(anObject);
+        }
+        return retVal;
+    }
+
+    /**
+    * Returns a string representation of this qualifier.
+    */
+    public String toString()
+    {
+         StringBuffer myBuf = new StringBuffer("(");
+         Iterator it = qualifiers.iterator();
+         while (it.hasNext())
+         {
+            myBuf = myBuf.append(((EOQualifier) it.next()).toString()).append(" and ");
+         }
+         String myStr = myBuf.toString();
+         myStr = myStr.substring(0, myStr.lastIndexOf(" and")).concat(")");
+         return myStr;
+    }
+
+	public static Object decodeWithKeyValueUnarchiver(EOKeyValueUnarchiver arch) {
+		NSArray a = (NSArray)arch.decodeObjectForKey("qualifiers");
+		if (a == null)
+			return null;
+		NSMutableArray l = new NSMutableArray();
+		for (int i = 0; i < a.count(); i++) {
+			NSDictionary d = (NSDictionary)a.objectAtIndex(i);
+			EOKeyValueUnarchiver ua = new EOKeyValueUnarchiver(d);
+			EOQualifier q = (EOQualifier)EOQualifier.decodeWithKeyValueUnarchiver(ua);
+			if (q != null)
+				l.addObject(q);
+		}
+		return new EOAndQualifier(l);
+	}
+
+	public void encodeWithKeyValueArchiver(EOKeyValueArchiver arch) {
+		arch.encodeObject("EOAndQualifier", "class");
+		NSMutableArray arr = new NSMutableArray(qualifiers.size());
+		for  (int i = 0; i < qualifiers.size(); i++) {
+			EOQualifier q = (EOQualifier)qualifiers.get(i);
+			if (q instanceof EOKeyValueArchiving) {
+				EOKeyValueArchiver ar2 = new EOKeyValueArchiver();
+				((EOKeyValueArchiving)q).encodeWithKeyValueArchiver(ar2);
+				arr.addObject(ar2.dictionary());
+			} else
+				throw new WotonomyException("Cannot archive instance of " + q.getClass().getName());
+		}
+		arch.encodeObject(arr, "qualifiers");
+	}
+
+}
+
+/*
+ * $Log$
+ * Revision 1.2  2006/02/16 16:47:14  cgruber
+ * Move some classes in to "internal" packages and re-work imports, etc.
+ *
+ * Also use UnsupportedOperationExceptions where appropriate, instead of WotonomyExceptions.
+ *
+ * Revision 1.1  2006/02/16 13:19:57  cgruber
+ * Check in all sources in eclipse-friendly maven-enabled packages.
+ *
+ * Revision 1.6  2003/08/12 01:43:04  chochos
+ * formally implement EOQualifierEvaluation
+ *
+ * Revision 1.5  2003/08/09 01:22:51  chochos
+ * qualifiers implement EOKeyValueArchiving
+ *
+ * Revision 1.4  2003/08/06 23:07:52  chochos
+ * general code cleanup (mostly, removing unused imports)
+ *
+ * Revision 1.3  2001/10/31 15:25:14  mpowers
+ * Cleanup of qualifiers.
+ *
+ * Revision 1.2  2001/10/30 22:57:28  mpowers
+ * EOQualifier framework is now working.
+ *
+ * Revision 1.1  2001/09/13 15:25:56  mpowers
+ * Started implementation of the EOQualifier framework.
+ *
+ *
+ */
+
+