/[classpath]/classpath/java/security/Permissions.java
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revision 1.9 by tromey, Sat Nov 6 23:13:39 2004 UTC revision 1.10 by robilad, Thu Feb 3 19:20:05 2005 UTC
# Line 188  public final class Permissions extends P Line 188  public final class Permissions extends P
188        }        }
189      };      };
190    }    }
 } // class Permissions  
   
 /**  
  * Implements the permission collection for all permissions without one of  
  * their own, and obeys serialization of JDK.  
  *  
  * @author Eric Blake <ebb9@email.byu.edu>  
  */  
 class PermissionsHash extends PermissionCollection  
 {  
   /**  
    * Compatible with JDK 1.1+.  
    */  
   private static final long serialVersionUID = -8491988220802933440L;  
191    
192    /**    /**
193     * Hashtable where we store permissions.     * Implements the permission collection for all permissions without one of
194       * their own, and obeys serialization of JDK.
195     *     *
196     * @serial the stored permissions, both as key and value     * @author Eric Blake <ebb9@email.byu.edu>
197     */     */
198    private final Hashtable perms = new Hashtable();    private static final class PermissionsHash extends PermissionCollection
   
   /**  
    * Add a permission. We don't need to check for read-only, as this  
    * collection is never exposed outside of Permissions, which has already  
    * done that check.  
    *  
    * @param perm the permission to add  
    */  
   public void add(Permission perm)  
199    {    {
200      perms.put(perm, perm);      /**
201    }       * Compatible with JDK 1.1+.
202         */
203        private static final long serialVersionUID = -8491988220802933440L;
204    
205    /**      /**
206     * Returns true if perm is in the collection.       * Hashtable where we store permissions.
207     *       *
208     * @param perm the permission to check       * @serial the stored permissions, both as key and value
209     * @return true if it is implied       */
210     */      private final Hashtable perms = new Hashtable();
   public boolean implies(Permission perm)  
   {  
     return perms.get(perm) != null;  
   }  
211    
212    /**      /**
213     * Return the elements.       * Add a permission. We don't need to check for read-only, as this
214     *       * collection is never exposed outside of Permissions, which has already
215     * @return the elements       * done that check.
216     */       *
217    public Enumeration elements()       * @param perm the permission to add
218    {       */
219      return perms.elements();      public void add(Permission perm)
220    }      {
221          perms.put(perm, perm);
222        }
223    
224        /**
225         * Returns true if perm is in the collection.
226         *
227         * @param perm the permission to check
228         * @return true if it is implied
229         */
230        public boolean implies(Permission perm)
231        {
232          return perms.get(perm) != null;
233        }
234    
235        /**
236         * Return the elements.
237         *
238         * @return the elements
239         */
240        public Enumeration elements()
241        {
242          return perms.elements();
243        }
244      } // class PermissionsHash
245  } // class Permissions  } // class Permissions

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