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1
4 package gnu.lists;
5 import java.io.*;
6
7
8
9 public class U16Vector extends SimpleVector
10 implements Externalizable
11
12 , Comparable 
13
14 {
15 short[] data;
16
17 public U16Vector ()
18 {
19 data = S16Vector.empty;
20 }
21
22 public U16Vector(int size, short value)
23 {
24 short[] array = new short[size];
25 data = array;
26 this.size = size;
27 while (--size >= 0)
28 array[size] = value;
29 }
30
31 public U16Vector(int size)
32 {
33 this.data = new short[size];
34 this.size = size;
35 }
36
37 public U16Vector (short[] data)
38 {
39 this.data = data;
40 size = data.length;
41 }
42
43 public U16Vector(Sequence seq)
44 {
45 data = new short[seq.size()];
46 addAll(seq);
47 }
48
49
50 public int getBufferLength()
51 {
52 return data.length;
53 }
54
55 public void setBufferLength(int length)
56 {
57 int oldLength = data.length;
58 if (oldLength != length)
59 {
60 short[] tmp = new short[length];
61 System.arraycopy(data, 0, tmp, 0,
62 oldLength < length ? oldLength : length);
63 data = tmp;
64 }
65 }
66
67 protected Object getBuffer() { return data; }
68
69 public final short shortAt(int index)
70 {
71 if (index > size)
72 throw new IndexOutOfBoundsException ();
73 return data[index];
74 }
75
76 public final short shortAtBuffer(int index)
77 {
78 return data[index];
79 }
80
81 public final int intAtBuffer(int index)
82 {
83 return data[index] & 0xffff;
84 }
85
86 public final Object get(int index)
87 {
88 if (index > size)
89 throw new IndexOutOfBoundsException ();
90 return Convert.toObjectUnsigned(data[index]);
91 }
92
93 public final Object getBuffer(int index)
94 {
95 return Convert.toObjectUnsigned(data[index]);
96 }
97
98 public Object setBuffer(int index, Object value)
99 {
100 short old = data[index];
101 data[index] = Convert.toShortUnsigned(value);
102 return Convert.toObjectUnsigned(old);
103 }
104
105 public final void setShortAt(int index, short value)
106 {
107 if (index > size)
108 throw new IndexOutOfBoundsException ();
109 data[index] = value;
110 }
111
112 public final void setShortAtBuffer(int index, short value)
113 {
114 data[index] = value;
115 }
116
117 protected void clearBuffer(int start, int count)
118 {
119 while (--count >= 0)
120 data[start++] = 0;
121 }
122
123 public int getElementKind()
124 {
125 return INT_U16_VALUE;
126 }
127
128 public String getTag() { return "u16"; }
129
130 public boolean consumeNext (int ipos, Consumer out)
131 {
132 int index = ipos >>> 1;
133 if (index >= size)
134 return false;
135 out.writeInt(data[index] & 0xffff);
136 return true;
137 }
138
139 public void consumePosRange (int iposStart, int iposEnd, Consumer out)
140 {
141 if (out.ignoring())
142 return;
143 int i = iposStart >>> 1;
144 int end = iposEnd >>> 1;
145 if (end > size)
146 end = size;
147 for (; i < end; i++)
148 out.writeInt(data[i] & 0xffff);
149 }
150
151 public int compareTo(Object obj)
152 {
153 return compareToInt(this, (U16Vector) obj);
154 }
155
156
160 public void writeExternal(ObjectOutput out) throws IOException
161 {
162 int size = this.size;
163 out.writeInt(size);
164 for (int i = 0; i < size; i++)
165 out.writeShort(data[i]);
166 }
167
168 public void readExternal(ObjectInput in)
169 throws IOException, ClassNotFoundException
170 {
171 int size = in.readInt();
172 short[] data = new short[size];
173 for (int i = 0; i < size; i++)
174 data[i] = in.readShort();
175 this.data = data;
176 this.size = size;
177 }
178 }
179 |
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