--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/NGSrich_0.5.5/src/org/jdom/filter/NegateFilter.java	Mon Nov 21 08:12:19 2011 -0500
@@ -0,0 +1,113 @@
+/*--
+
+ $Id: NegateFilter.java,v 1.4 2007/11/10 05:29:00 jhunter Exp $
+
+ Copyright (C) 2000-2007 Jason Hunter & Brett McLaughlin.
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ 1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions, and the following disclaimer.
+
+ 2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions, and the disclaimer that follows
+    these conditions in the documentation and/or other materials
+    provided with the distribution.
+
+ 3. The name "JDOM" must not be used to endorse or promote products
+    derived from this software without prior written permission.  For
+    written permission, please contact <request_AT_jdom_DOT_org>.
+
+ 4. Products derived from this software may not be called "JDOM", nor
+    may "JDOM" appear in their name, without prior written permission
+    from the JDOM Project Management <request_AT_jdom_DOT_org>.
+
+ In addition, we request (but do not require) that you include in the
+ end-user documentation provided with the redistribution and/or in the
+ software itself an acknowledgement equivalent to the following:
+     "This product includes software developed by the
+      JDOM Project (http://www.jdom.org/)."
+ Alternatively, the acknowledgment may be graphical using the logos
+ available at http://www.jdom.org/images/logos.
+
+ THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED.  IN NO EVENT SHALL THE JDOM AUTHORS OR THE PROJECT
+ CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ SUCH DAMAGE.
+
+ This software consists of voluntary contributions made by many
+ individuals on behalf of the JDOM Project and was originally
+ created by Jason Hunter <jhunter_AT_jdom_DOT_org> and
+ Brett McLaughlin <brett_AT_jdom_DOT_org>.  For more information
+ on the JDOM Project, please see <http://www.jdom.org/>.
+
+ */
+
+package org.jdom.filter;
+
+/**
+ * Filter that is the logical <b>negation</b> operation of another filter.
+ *
+ *
+ * @author Bradley S. Huffman
+ * @version $Revision: 1.4 $, $Date: 2007/11/10 05:29:00 $
+ */
+final class NegateFilter extends AbstractFilter {
+
+    private static final String CVS_ID = 
+      "@(#) $RCSfile: NegateFilter.java,v $ $Revision: 1.4 $ $Date: 2007/11/10 05:29:00 $";
+
+    // Underlying filter.
+    private Filter filter;
+
+    /**
+     * Match if the supplied filter <b>does not</b> match.
+     *
+     * @param filter filter to use.
+     */
+    public NegateFilter(Filter filter) {
+        this.filter = filter;
+    }
+
+    public boolean matches(Object obj) {
+        return !filter.matches(obj);
+    }
+
+    public Filter negate() {
+        return filter;
+    }
+
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+
+        if (obj instanceof NegateFilter) {
+            return filter.equals(((NegateFilter) obj).filter);
+        }
+        return false;
+    }
+
+    public int hashCode() {
+        return ~filter.hashCode();
+    }
+
+    public String toString() {
+        return new StringBuffer(64)
+                   .append("[NegateFilter: ")
+                   .append(filter.toString())
+                   .append("]")
+                   .toString();
+    }
+}