/* 
 * @(#)GetAttributeDefn.java	1.3 99/09/21
 * 
 * Copyright 1997, 1998, 1999 Sun Microsystems, Inc. All Rights
 * Reserved.
 * 
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 * license to use, modify and redistribute this software in source and
 * binary code form, provided that i) this copyright notice and license
 * appear on all copies of the software; and ii) Licensee does not 
 * utilize the software in a manner which is disparaging to Sun.
 *
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 * HEREBY EXCLUDED.  SUN AND ITS LICENSORS SHALL NOT BE LIABLE 
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 */

import javax.naming.*;
import javax.naming.directory.*;
import java.util.Hashtable;

/**
  * Demonstrates how to get an attribute definition's schema from the corresponding
  * attribute.
  *
  * usage: java GetAttributeDefn
  */
class GetAttributeDefn {
    public static void main(String[] args) {

	// Set up environment for creating initial context
	Hashtable env = new Hashtable(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);

	    // Get an attribute of that type
	    Attributes attrs = ctx.getAttributes("cn=Ted Geisel, ou=People",
		new String[]{"cn"});
	    Attribute cnAttr = attrs.get("cn");

	    // Get its attribute definition
	    DirContext cnSchema = cnAttr.getAttributeDefinition();

	    // Get cnSchema's attributes
	    Attributes cnAttrs = cnSchema.getAttributes("");

	    System.out.println(cnAttrs);

	    // Close the context when we're done
	    ctx.close();
	} catch (NamingException e) {
	    e.printStackTrace();
	}
    }
}