1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache 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.apache.org/licenses/LICENSE-2.0
*
* 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 javax.servlet;
import java.util.Enumeration;
/**
*
* A filter configuration object used by a servlet container
* to pass information to a filter during initialization.
* @see Filter
* @since Servlet 2.3
*
*/
public interface FilterConfig {
/**
* Returns the filter-name of this filter as defined in the deployment descriptor.
*/
public String getFilterName();
/**
* Returns a reference to the {@link ServletContext} in which the caller
* is executing.
*
*
* @return a {@link ServletContext} object, used
* by the caller to interact with its servlet
* container
*
* @see ServletContext
*
*/
public ServletContext getServletContext();
/**
* Returns a <code>String</code> containing the value of the
* named initialization parameter, or <code>null</code> if
* the parameter does not exist.
*
* @param name a <code>String</code> specifying the name
* of the initialization parameter
*
* @return a <code>String</code> containing the value
* of the initialization parameter
*
*/
public String getInitParameter(String name);
/**
* Returns the names of the filter's initialization parameters
* as an <code>Enumeration</code> of <code>String</code> objects,
* or an empty <code>Enumeration</code> if the filter has
* no initialization parameters.
*
* @return an <code>Enumeration</code> of <code>String</code>
* objects containing the names of the filter's
* initialization parameters
*
*
*
*/
public Enumeration getInitParameterNames();
}
|
