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Revision 1520

Implement Comparator interface.

     package edu.ucsb.nceas.metacat;
     import java.util.Comparator;
     import java.util.Stack;
     import java.sql.PreparedStatement;
     import java.sql.SQLException;
-...
     /**
      * A Class that represents an XML Subtree
      */
     public class SubTree
     public class SubTree implements Comparator
+    {
       private String docId = null;
       private String subTreeId = null;
-...
         }//getSubtreeNodeList
         public static void main (String agus)
+        {
+        }
        /** methods from Comparator interface */
        public int compare(Object o1, Object o2)
+       {
          SubTree tree1 = (SubTree) o1;
          SubTree tree2 = (SubTree) o2;
          if (tree1.getStartNodeId() > tree2.getStartNodeId())
+         {
            return 1;
+         }
          else if (tree1.getStartNodeId() < tree2.getStartNodeId())
+         {
            return -1;
+         }
          else
+         {
            return 0;
+         }
        }//cpmpare
        /** method from Comparator interface */
        public boolean equals(Object obj)
+       {
          SubTree tree = (SubTree)obj;
          if (startNodeId == tree.getStartNodeId())
+         {
            return true;
+         }
          else
+         {
            return false;
+         }
+       }
+    }

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