Index: topia-service/src/java/org/codelutin/topia/taas/entities/TaasAuthorizationImpl.java
diff -u /dev/null topia-service/src/java/org/codelutin/topia/taas/entities/TaasAuthorizationImpl.java:1.1
--- /dev/null	Thu Nov 29 16:08:34 2007
+++ topia-service/src/java/org/codelutin/topia/taas/entities/TaasAuthorizationImpl.java	Thu Nov 29 16:08:29 2007
@@ -0,0 +1,90 @@
+/* *##%
+* Copyright (C) 2002, 2003, 2004, 2005 Code Lutin,
+*    Cédric Pineau, Benjamin Poussin,
+*
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License
+* as published by the Free Software Foundation; either version 2
+* of the License, or (at your option) any later version.
+*
+* This program 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 General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program; if not, write to the Free Software
+* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+*##%*/
+
+package org.codelutin.topia.taas.entities;
+
+import static org.codelutin.topia.taas.TaasUtil.CREATE;
+import static org.codelutin.topia.taas.TaasUtil.LOAD;
+import static org.codelutin.topia.taas.TaasUtil.UPDATE;
+import static org.codelutin.topia.taas.TaasUtil.DELETE;
+
+import org.codelutin.topia.taas.TaasAuthorization;
+import org.codelutin.topia.taas.TaasAuthorizationAbstract;
+
+/**
+ * Classe permettant la comparaison des autorisations.
+ * @author ruchaud
+ */
+public class TaasAuthorizationImpl extends TaasAuthorizationAbstract implements
+        TaasAuthorization {
+
+    public TaasAuthorizationImpl(String expression, int actions) {
+        this.expression = expression;
+        this.actions = actions;
+    }
+    
+    /**
+     * Compare deux autorisations entres elles.
+     * @param other une autre autorisation
+     * @return vrai si l'autorisation implique l'autre
+     */
+    public boolean implies(TaasAuthorization other) {
+        return impliesExpression(getExpression(), other.getExpression()) && 
+                impliesActions(getActions(), other.getActions());
+    }
+
+    /**
+     * Comparare deux identifiants entres eux.
+     * thisId => thatId = ?
+     * @param thisExpression un identifiant 
+     * @param thatExpression un autre identifiant
+     * @return vrai si thisId implique thatId
+     */
+    public boolean impliesExpression(String thisExpression, String thatExpression) {
+        return (thisExpression.equals(thatExpression) ||
+                "*".equals(thisExpression) ||
+                (thatExpression.startsWith(thisExpression.substring(0, thisExpression.length()-1))
+                        && thisExpression.endsWith("*")));
+    }
+
+    /**
+     * Compare deux actions entre elles.
+     * thisActions => thatActions = ?
+     * @param thisActions une action
+     * @param thatActions une autre action
+     * @return vrai si thisActions implique thatActions
+     */
+    public boolean impliesActions(int thisActions, int thatActions) {
+        boolean result = true;
+        if ((thatActions & LOAD) == LOAD) {
+            result &= ((thisActions & LOAD) == LOAD);
+        }
+        if ((thatActions & CREATE) == CREATE) {
+            result &= ((thisActions & CREATE) == CREATE);
+        }
+        if ((thatActions & UPDATE) == UPDATE) {
+            result &= ((thisActions & UPDATE) == UPDATE);
+        }
+        if ((thatActions & DELETE) == DELETE) {
+            result &= ((thisActions & DELETE) == DELETE);
+        }
+        return result;
+    }
+ }