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
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
/*
* 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.el;
import java.util.Iterator;
/**
* @author Jacob Hookom [jacob/hookom.net]
*
*/
public abstract class ELResolver {
public static final String TYPE = "type";
public static final String RESOLVABLE_AT_DESIGN_TIME = "resolvableAtDesignTime";
/**
* @throws NullPointerException
* If the supplied context is <code>null</code>
* @throws PropertyNotFoundException
* If the base/property combination provided to the resolver is
* one that the resolver can handle but no match was found or a
* match was found but was not readable
* @throws ELException
* Wraps any exception throw whilst resolving the property
*/
public abstract Object getValue(ELContext context, Object base,
Object property);
/**
* @since EL 2.2
*/
public Object invoke(@SuppressWarnings("unused") ELContext context,
@SuppressWarnings("unused") Object base,
@SuppressWarnings("unused") Object method,
@SuppressWarnings("unused") Class<?>[] paramTypes,
@SuppressWarnings("unused") Object[] params) {
return null;
}
/**
* @throws NullPointerException
* If the supplied context is <code>null</code>
* @throws PropertyNotFoundException
* If the base/property combination provided to the resolver is
* one that the resolver can handle but no match was found or a
* match was found but was not readable
* @throws ELException
* Wraps any exception throw whilst resolving the property
*/
public abstract Class<?> getType(ELContext context, Object base,
Object property);
/**
* @throws NullPointerException
* If the supplied context is <code>null</code>
* @throws PropertyNotFoundException
* If the base/property combination provided to the resolver is
* one that the resolver can handle but no match was found
* @throws PropertyNotWritableException
* If the base/property combination provided to the resolver is
* one that the resolver can handle but the property was not
* writable
* @throws ELException
* Wraps any exception throw whilst resolving the property
*/
public abstract void setValue(ELContext context, Object base,
Object property, Object value);
/**
* @throws NullPointerException
* If the supplied context is <code>null</code>
* @throws PropertyNotFoundException
* If the base/property combination provided to the resolver is
* one that the resolver can handle but no match was found
* @throws ELException
* Wraps any exception throw whilst resolving the property
*/
public abstract boolean isReadOnly(ELContext context, Object base,
Object property);
public abstract Iterator<java.beans.FeatureDescriptor> getFeatureDescriptors(ELContext context, Object base);
public abstract Class<?> getCommonPropertyType(ELContext context,
Object base);
/**
* Converts the given object to the given type. This default implementation
* always returns <code>null</code>.
*
* @since EL 3.0
*/
public Object convertToType(@SuppressWarnings("unused") ELContext context,
@SuppressWarnings("unused") Object obj,
@SuppressWarnings("unused") Class<?> type) {
return null;
}
}
|
