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
|
/*
* Copyright (C) 2012 The Guava Authors
*
* Licensed 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 com.google.common.collect;
import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.Multisets.UnmodifiableMultiset;
import java.util.Comparator;
import java.util.NavigableSet;
/**
* Implementation of {@link Multisets#unmodifiableSortedMultiset(SortedMultiset)},
* split out into its own file so it can be GWT emulated (to deal with the differing
* elementSet() types in GWT and non-GWT).
*
* @author Louis Wasserman
*/
@GwtCompatible(emulated = true)
final class UnmodifiableSortedMultiset<E>
extends UnmodifiableMultiset<E> implements SortedMultiset<E> {
UnmodifiableSortedMultiset(SortedMultiset<E> delegate) {
super(delegate);
}
@Override
protected SortedMultiset<E> delegate() {
return (SortedMultiset<E>) super.delegate();
}
@Override
public Comparator<? super E> comparator() {
return delegate().comparator();
}
@Override
NavigableSet<E> createElementSet() {
return Sets.unmodifiableNavigableSet(delegate().elementSet());
}
@Override
public NavigableSet<E> elementSet() {
return (NavigableSet<E>) super.elementSet();
}
private transient UnmodifiableSortedMultiset<E> descendingMultiset;
@Override
public SortedMultiset<E> descendingMultiset() {
UnmodifiableSortedMultiset<E> result = descendingMultiset;
if (result == null) {
result = new UnmodifiableSortedMultiset<E>(
delegate().descendingMultiset());
result.descendingMultiset = this;
return descendingMultiset = result;
}
return result;
}
@Override
public Entry<E> firstEntry() {
return delegate().firstEntry();
}
@Override
public Entry<E> lastEntry() {
return delegate().lastEntry();
}
@Override
public Entry<E> pollFirstEntry() {
throw new UnsupportedOperationException();
}
@Override
public Entry<E> pollLastEntry() {
throw new UnsupportedOperationException();
}
@Override
public SortedMultiset<E> headMultiset(E upperBound, BoundType boundType) {
return Multisets.unmodifiableSortedMultiset(
delegate().headMultiset(upperBound, boundType));
}
@Override
public SortedMultiset<E> subMultiset(
E lowerBound, BoundType lowerBoundType,
E upperBound, BoundType upperBoundType) {
return Multisets.unmodifiableSortedMultiset(delegate().subMultiset(
lowerBound, lowerBoundType, upperBound, upperBoundType));
}
@Override
public SortedMultiset<E> tailMultiset(E lowerBound, BoundType boundType) {
return Multisets.unmodifiableSortedMultiset(
delegate().tailMultiset(lowerBound, boundType));
}
private static final long serialVersionUID = 0;
}
|
