Java by API/javax.naming.directory/ModificationItem

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new ModificationItem(int mod_op, Attribute attr)

   <source lang="java">
  

/*

* Copyright (c) 1995 - 2008 Sun Microsystems, Inc.  All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
*   - Redistributions of source code must retain the above copyright
*     notice, this list of conditions and the following disclaimer.
*
*   - Redistributions in binary form must reproduce the above copyright
*     notice, this list of conditions and the following disclaimer in the
*     documentation and/or other materials provided with the distribution.
*
*   - Neither the name of Sun Microsystems nor the names of its
*     contributors may be used to endorse or promote products derived
*     from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS 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 COPYRIGHT OWNER OR
* 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.
*/

import java.util.Hashtable; import javax.naming.Context; import javax.naming.NamingEnumeration; import javax.naming.NamingException; import javax.naming.directory.Attribute; import javax.naming.directory.Attributes; import javax.naming.directory.BasicAttribute; import javax.naming.directory.DirContext; import javax.naming.directory.InitialDirContext; import javax.naming.directory.ModificationItem; /**

* Demonstrates how to make modifications to an object"s attributes. It remove
* an attribute, adds an attribute value, and replaces an attribute value. After
* making the modifications, it replaces the object"s attributes with its
* original attributes.
* 
* usage: java ModAttrs
*/

class ModAttrs {

 public static void main(String[] args) {
   // Set up the environment for creating the initial context
   Hashtable<String, Object> env = new Hashtable<String, Object>(11);
   env
       .put(Context.INITIAL_CONTEXT_FACTORY,
           "com.sun.jndi.ldap.LdapCtxFactory");
   env.put(Context.PROVIDER_URL, "ldap://localhost:389/o=JNDITutorial");
   try {
     // Create the initial context
     DirContext ctx = new InitialDirContext(env);
     String name = "cn=Ted Geisel, ou=People";
     // Save original attributes
     Attributes orig = ctx.getAttributes(name, new String[] { "mail",
         "telephonenumber", "jpegphoto" });
     // Specify the changes to make
     ModificationItem[] mods = new ModificationItem[3];
     // Replace the "mail" attribute with a new value
     mods[0] = new ModificationItem(DirContext.REPLACE_ATTRIBUTE,
         new BasicAttribute("mail", "geisel@wizards.ru"));
     // Add additional value to "telephonenumber"
     mods[1] = new ModificationItem(DirContext.ADD_ATTRIBUTE,
         new BasicAttribute("telephonenumber", "+1 555 555 5555"));
     // Remove the "jpegphoto" attribute
     mods[2] = new ModificationItem(DirContext.REMOVE_ATTRIBUTE,
         new BasicAttribute("jpegphoto"));
     // Perform the requested modifications on the named object
     ctx.modifyAttributes(name, mods);
     // Check attributes
     System.out.println("**** new attributes *****");
     printAttrs(ctx.getAttributes(name));
     // Revert changes
     ctx.modifyAttributes(name, DirContext.REPLACE_ATTRIBUTE, orig);
     // Check that the attributes got restored
     System.out.println("**** reverted to original attributes *****");
     printAttrs(ctx.getAttributes(name));
     // Close the context when we"re done
     ctx.close();
   } catch (Exception e) {
     e.printStackTrace();
   }
 }
 static void printAttrs(Attributes attrs) {
   if (attrs == null) {
     System.out.println("No attributes");
   } else {
     /* Print each attribute */
     try {
       for (NamingEnumeration ae = attrs.getAll(); ae.hasMore();) {
         Attribute attr = (Attribute) ae.next();
         System.out.println("attribute: " + attr.getID());
         /* print each value */
         for (NamingEnumeration e = attr.getAll(); e.hasMore(); System.out
             .println("value: " + e.next()))
           ;
       }
     } catch (NamingException e) {
       e.printStackTrace();
     }
   }
 }

}


 </source>