1 /*
2 * Copyright 2004-2006 the Seasar Foundation and the Others.
3 *
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
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
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,
13 * either express or implied. See the License for the specific language
14 * governing permissions and limitations under the License.
15 */
16 /*
17 * Created on 2005/09/09
18 *
19 * TODO To change the template for this generated file go to
20 * Window - Preferences - Java - Code Style - Code Templates
21 */
22 package org.seasar.tuigwaa.database.function.criteria;
23
24 import java.security.Principal;
25
26 import org.seasar.tuigwaa.util.TgwContext;
27
28
29 /***
30 * @author nishioka
31 */
32 public class SecurityCriteriaFunction extends AbstractCriteriaFunction {
33
34 public SecurityCriteriaFunction() {
35 super();
36 }
37
38 public SecurityCriteriaFunction(String field) {
39 super(field);
40 }
41
42 public SecurityCriteriaFunction(String field, Object value) {
43 super(field, value);
44 }
45
46 public Object evaluate(ICriteria criteria) {
47 Principal principal = TgwContext.getPrincipal();
48 if (principal != null) {
49 return evaluate(criteria, principal.getName());
50 } else {
51 return criteria;
52 }
53 }
54
55 public Object evaluate(ICriteria criteria, Object value) {
56 return criteria.addEq(getField(), value);
57 }
58 }