/**

  * Copyright 2005-2011 The Kuali Foundation

  *

  * Licensed under the Educational Community License, Version 2.0 (the "License");

  * you may not use this file except in compliance with the License.

  * You may obtain a copy of the License at

  *

  * http://www.opensource.org/licenses/ecl2.php

  *

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  * See the License for the specific language governing permissions and

  * limitations under the License.

  */

 package org.kuali.rice.krad.uif.util;

 import java.util.HashMap;

 import java.util.Set;

 /**

  * Map implementation takes a <code>Set</code> of Strings and converts to Map

  * where the string is the map key and value is the Boolean true, convenience

  * collection for expression language

  * 

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 public class BooleanMap extends HashMap<String, Boolean> {

     private static final long serialVersionUID = 4042557657401395547L;

     public BooleanMap(Set<String> keys) {

         super();

         for (String key : keys) {

             this.put(key, Boolean.TRUE);

         }

     }

     /**

      * Overrides the get method to return Boolean false if the key does not

      * exist in the Map

      * 

      * @see java.util.HashMap#get(java.lang.Object)

      */

     @Override

     public Boolean get(Object key) {

         if (super.containsKey(key)) {

             return super.get(key);

         }

         return Boolean.FALSE;

     }

 }