Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
NullHandler |
|
| 1.0;1 |
1 | package org.apache.commons.ognl; | |
2 | ||
3 | /* | |
4 | * Licensed to the Apache Software Foundation (ASF) under one | |
5 | * or more contributor license agreements. See the NOTICE file | |
6 | * distributed with this work for additional information | |
7 | * regarding copyright ownership. The ASF licenses this file | |
8 | * to you under the Apache License, Version 2.0 (the | |
9 | * "License"); you may not use this file except in compliance | |
10 | * with the License. You may obtain a copy of the License at | |
11 | * | |
12 | * http://www.apache.org/licenses/LICENSE-2.0 | |
13 | * | |
14 | * Unless required by applicable law or agreed to in writing, | |
15 | * software distributed under the License is distributed on an | |
16 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
17 | * KIND, either express or implied. See the License for the | |
18 | * specific language governing permissions and limitations | |
19 | * under the License. | |
20 | */ | |
21 | ||
22 | import java.util.Map; | |
23 | ||
24 | /** | |
25 | * Interface for handling null results from Chains. Object has the opportunity to substitute an object for the null and | |
26 | * continue. | |
27 | * | |
28 | * @author Luke Blanshard (blanshlu@netscape.net) | |
29 | * @author Drew Davidson (drew@ognl.org) | |
30 | */ | |
31 | public interface NullHandler | |
32 | { | |
33 | /** | |
34 | * Method called on target returned null. | |
35 | */ | |
36 | Object nullMethodResult( Map<String, Object> context, Object target, String methodName, Object[] args ); | |
37 | ||
38 | /** | |
39 | * Property in target evaluated to null. Property can be a constant String property name or a DynamicSubscript. | |
40 | */ | |
41 | Object nullPropertyValue( Map<String, Object> context, Object target, Object property ); | |
42 | } |