-
Notifications
You must be signed in to change notification settings - Fork 4
Expand file tree
/
Copy pathBindings.java
More file actions
125 lines (119 loc) · 4.41 KB
/
Bindings.java
File metadata and controls
125 lines (119 loc) · 4.41 KB
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
113
114
115
116
117
118
119
120
121
122
123
124
125
/*
* Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*/
package javax.script;
import java.util.Map;
/**
* A mapping of key/value pairs, all of whose keys are
* <code>Strings</code>.
*
* @author Mike Grogan
* @since 1.6
*/
public interface Bindings extends Map<String, Object> {
/**
* Set a named value.
*
* @param name The name associated with the value.
* @param value The value associated with the name.
*
* @return The value previously associated with the given name.
* Returns null if no value was previously associated with the name.
*
* @throws NullPointerException if the name is null.
* @throws IllegalArgumentException if the name is empty String.
*/
public Object put(String name, Object value);
/**
* Adds all the mappings in a given <code>Map</code> to this <code>Bindings</code>.
* @param toMerge The <code>Map</code> to merge with this one.
*
* @throws NullPointerException
* if toMerge map is null or if some key in the map is null.
* @throws IllegalArgumentException
* if some key in the map is an empty String.
*/
public void putAll(Map<? extends String, ? extends Object> toMerge);
/**
* Returns <tt>true</tt> if this map contains a mapping for the specified
* key. More formally, returns <tt>true</tt> if and only if
* this map contains a mapping for a key <tt>k</tt> such that
* <tt>(key==null ? k==null : key.equals(k))</tt>. (There can be
* at most one such mapping.)
*
* @param key key whose presence in this map is to be tested.
* @return <tt>true</tt> if this map contains a mapping for the specified
* key.
*
* @throws NullPointerException if key is null
* @throws ClassCastException if key is not String
* @throws IllegalArgumentException if key is empty String
*/
public boolean containsKey(Object key);
/**
* Returns the value to which this map maps the specified key. Returns
* <tt>null</tt> if the map contains no mapping for this key. A return
* value of <tt>null</tt> does not <i>necessarily</i> indicate that the
* map contains no mapping for the key; it's also possible that the map
* explicitly maps the key to <tt>null</tt>. The <tt>containsKey</tt>
* operation may be used to distinguish these two cases.
*
* <p>More formally, if this map contains a mapping from a key
* <tt>k</tt> to a value <tt>v</tt> such that <tt>(key==null ? k==null :
* key.equals(k))</tt>, then this method returns <tt>v</tt>; otherwise
* it returns <tt>null</tt>. (There can be at most one such mapping.)
*
* @param key key whose associated value is to be returned.
* @return the value to which this map maps the specified key, or
* <tt>null</tt> if the map contains no mapping for this key.
*
* @throws NullPointerException if key is null
* @throws ClassCastException if key is not String
* @throws IllegalArgumentException if key is empty String
*/
public Object get(Object key);
/**
* Removes the mapping for this key from this map if it is present
* (optional operation). More formally, if this map contains a mapping
* from key <tt>k</tt> to value <tt>v</tt> such that
* <code>(key==null ? k==null : key.equals(k))</code>, that mapping
* is removed. (The map can contain at most one such mapping.)
*
* <p>Returns the value to which the map previously associated the key, or
* <tt>null</tt> if the map contained no mapping for this key. (A
* <tt>null</tt> return can also indicate that the map previously
* associated <tt>null</tt> with the specified key if the implementation
* supports <tt>null</tt> values.) The map will not contain a mapping for
* the specified key once the call returns.
*
* @param key key whose mapping is to be removed from the map.
* @return previous value associated with specified key, or <tt>null</tt>
* if there was no mapping for key.
*
* @throws NullPointerException if key is null
* @throws ClassCastException if key is not String
* @throws IllegalArgumentException if key is empty String
*/
public Object remove(Object key);
}