2 * Copyright 2005 the original author or authors.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package org.wamblee.security.authorization;
19 import org.wamblee.persistence.Persistent;
20 import org.wamblee.usermgt.User;
23 * Represents an authorization rule to determine whether an operation is allowed on a resource.
25 * @author Erik Brakkee
27 public interface AuthorizationRule extends Persistent {
30 * Returns the supported object types for which this authorization rule applies.
31 * This can be used by the authorization service for optimization.
32 * @return Array of supported types.
34 Class[] getSupportedTypes();
37 * Determines whether an operation is allowed on a certain resource.
38 * The rule implementation must be prepared to deal with resources for which it does
39 * not apply. In those cases it should return {@link AuthorizationResult#UNSUPPORTED_RESOURCE}.
40 * @param aResource Resource.
41 * @param anOperation Operation.
42 * @param aUser Current user.
43 * @return Authorization result.
45 AuthorizationResult isAllowed(Object aResource, Operation anOperation, User aUser);