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1
19 package bak.pcj.map;
20
21 import bak.pcj.hash.DefaultDoubleHashFunction;
22 import bak.pcj.util.Exceptions;
23
24
36 public abstract class AbstractObjectKeyDoubleMap implements ObjectKeyDoubleMap {
37
38
39 protected AbstractObjectKeyDoubleMap() { }
40
41 public void clear() {
42 ObjectKeyDoubleMapIterator i = entries();
43 while (i.hasNext()) {
44 i.next();
45 i.remove();
46 }
47 }
48
49 public double remove(Object  key) {
50 ObjectKeyDoubleMapIterator i = entries();
51 if (key == null)
52 while (i.hasNext()) {
53 if (i.getKey() == null) {
54 double value = i.getValue();
55 i.remove();
56 return value;
57 }
58 }
59 else
60 while (i.hasNext()) {
61 i.next();
62 if (key.equals(i.getKey())) {
63 double value = i.getValue();
64 i.remove();
65 return value;
66 }
67 }
68 return MapDefaults.defaultDouble();
69 }
70
71 public void putAll(ObjectKeyDoubleMap map) {
72 ObjectKeyDoubleMapIterator i = map.entries();
73 while (i.hasNext()) {
74 i.next();
75 put(i.getKey(), i.getValue());
76 }
77 }
78
79 public boolean containsKey(Object key) {
80 ObjectKeyDoubleMapIterator i = entries();
81 if (key == null)
82 while (i.hasNext()) {
83 i.next();
84 if (i.getKey() == null)
85 return true;
86 }
87 else
88 while (i.hasNext()) {
89 i.next();
90 if (key.equals(i.getKey()))
91 return true;
92 }
93 return false;
94 }
95
96 public double get(Object key) {
97 ObjectKeyDoubleMapIterator i = entries();
98 if (key == null)
99 while (i.hasNext()) {
100 i.next();
101 if (i.getKey() == null)
102 return i.getValue();
103 }
104 else
105 while (i.hasNext()) {
106 i.next();
107 if (key.equals(i.getKey()))
108 return i.getValue();
109 }
110 return MapDefaults.defaultDouble();
111 }
112
113 public boolean containsValue(double value) {
114 ObjectKeyDoubleMapIterator i = entries();
115 while (i.hasNext()) {
116 i.next();
117 if (i.getValue() == value)
118 return true;
119 }
120 return false;
121 }
122
123 public boolean equals(Object obj) {
124 if (!(obj instanceof ObjectKeyDoubleMap))
125 return false;
126 ObjectKeyDoubleMap map = (ObjectKeyDoubleMap)obj;
127 if (size() != map.size())
128 return false;
129 ObjectKeyDoubleMapIterator i = entries();
130 while (i.hasNext()) {
131 i.next();
132 Object k = i.getKey();
133 if (!map.containsKey(k) || map.lget() != i.getValue())
134 return false;
135 }
136 return true;
137 }
138
139 public int hashCode() {
140 int h = 0;
141 ObjectKeyDoubleMapIterator i = entries();
142 while (i.hasNext()) {
143 i.next();
144 Object k = i.getKey();
145 h += ((k == null ? 0 : k.hashCode()) ^ DefaultDoubleHashFunction.INSTANCE.hash(i.getValue()));
146 }
147 return h;
148 }
149
150 public boolean isEmpty()
151 { return size() == 0; }
152
153 public int size() {
154 int size = 0;
155 ObjectKeyDoubleMapIterator i = entries();
156 while (i.hasNext()) {
157 i.next();
158 size++;
159 }
160 return size;
161 }
162
163 public double tget(Object key) {
164 double value = get(key);
165 if (value == MapDefaults.defaultDouble())
166 if (!containsKey(key))
167 Exceptions.noSuchMapping(key);
168 return value;
169 }
170
171
176 public String toString() {
177 StringBuffer s = new StringBuffer ();
178 s.append('[');
179 ObjectKeyDoubleMapIterator i = entries();
180 while (i.hasNext()) {
181 if (s.length() > 1)
182 s.append(',');
183 i.next();
184 s.append(String.valueOf(i.getKey()));
185 s.append("->");
186 s.append(String.valueOf(i.getValue()));
187 }
188 s.append(']');
189 return s.toString();
190 }
191
192
197 public void trimToSize()
198 { }
199
200 } |
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