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diff --git a/pki/base/common/src/com/netscape/certsrv/dbs/ModificationSet.java b/pki/base/common/src/com/netscape/certsrv/dbs/ModificationSet.java
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+// --- BEGIN COPYRIGHT BLOCK ---
+// 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; version 2 of the License.
+//
+// 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.,
+// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+//
+// (C) 2007 Red Hat, Inc.
+// All rights reserved.
+// --- END COPYRIGHT BLOCK ---
+package com.netscape.certsrv.dbs;
+
+
+import java.util.*;
+
+
+/**
+ * A class represents a modification set. A modification
+ * set contains zero or more modifications.
+ *
+ * @version $Revision$, $Date$
+ */
+public class ModificationSet {
+
+ /**
+ * A list of modifications
+ */
+ private Vector mods = new Vector();
+
+ /**
+ * Constructs modification set.
+ */
+ public ModificationSet() {
+ }
+
+ /**
+ * Adds modification to this set.
+ *
+ * @param name attribute name
+ * @param op modification operation
+ * @param value attribute value
+ */
+ public void add(String name, int op, Object value) {
+ mods.addElement(new Modification(name, op, value));
+ }
+
+ /**
+ * Retrieves a list of modifications.
+ *
+ * @return a list of Modifications
+ */
+ public Enumeration getModifications() {
+ return mods.elements();
+ }
+}