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Java > Open Source Codes > java > nio > HeapLongBuffer


1 /*
2  * @(#)Heap-X-Buffer.java 1.28 03/12/19
3  *
4  * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
5  * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
6  */

7
8 // -- This file was mechanically generated: Do not edit! -- //
9

10 package java.nio;
11
12
13 /**
14
15  * A read/write HeapLongBuffer.
16
17
18
19
20
21
22  */

23
24 class HeapLongBuffer
25     extends LongBuffer JavaDoc
26 {
27
28     // For speed these fields are actually declared in X-Buffer;
29
// these declarations are here as documentation
30
/*
31
32     protected final long[] hb;
33     protected final int offset;
34
35     */

36
37     HeapLongBuffer(int cap, int lim) { // package-private
38

39     super(-1, 0, lim, cap, new long[cap], 0);
40     /*
41     hb = new long[cap];
42     offset = 0;
43     */

44
45
46
47
48     }
49
50     HeapLongBuffer(long[] buf, int off, int len) { // package-private
51

52     super(-1, off, off + len, buf.length, buf, 0);
53     /*
54     hb = buf;
55     offset = 0;
56     */

57
58
59
60
61     }
62
63     protected HeapLongBuffer(long[] buf,
64                    int mark, int pos, int lim, int cap,
65                    int off)
66     {
67
68     super(mark, pos, lim, cap, buf, off);
69     /*
70     hb = buf;
71     offset = off;
72     */

73
74
75
76
77     }
78
79     public LongBuffer JavaDoc slice() {
80     return new HeapLongBuffer JavaDoc(hb,
81                     -1,
82                     0,
83                     this.remaining(),
84                     this.remaining(),
85                     this.position() + offset);
86     }
87
88     public LongBuffer JavaDoc duplicate() {
89     return new HeapLongBuffer JavaDoc(hb,
90                     this.markValue(),
91                     this.position(),
92                     this.limit(),
93                     this.capacity(),
94                     offset);
95     }
96
97     public LongBuffer JavaDoc asReadOnlyBuffer() {
98
99     return new HeapLongBufferR JavaDoc(hb,
100                      this.markValue(),
101                      this.position(),
102                      this.limit(),
103                      this.capacity(),
104                      offset);
105
106
107
108     }
109
110
111
112     protected int ix(int i) {
113     return i + offset;
114     }
115
116     public long get() {
117     return hb[ix(nextGetIndex())];
118     }
119
120     public long get(int i) {
121     return hb[ix(checkIndex(i))];
122     }
123
124     public LongBuffer JavaDoc get(long[] dst, int offset, int length) {
125     checkBounds(offset, length, dst.length);
126     if (length > remaining())
127         throw new BufferUnderflowException JavaDoc();
128     System.arraycopy(hb, ix(position()), dst, offset, length);
129     position(position() + length);
130     return this;
131     }
132
133     public boolean isDirect() {
134     return false;
135     }
136
137
138
139     public boolean isReadOnly() {
140     return false;
141     }
142
143     public LongBuffer JavaDoc put(long x) {
144
145     hb[ix(nextPutIndex())] = x;
146     return this;
147
148
149
150     }
151
152     public LongBuffer JavaDoc put(int i, long x) {
153
154     hb[ix(checkIndex(i))] = x;
155     return this;
156
157
158
159     }
160
161     public LongBuffer JavaDoc put(long[] src, int offset, int length) {
162
163     checkBounds(offset, length, src.length);
164     if (length > remaining())
165         throw new BufferOverflowException JavaDoc();
166     System.arraycopy(src, offset, hb, ix(position()), length);
167     position(position() + length);
168     return this;
169
170
171
172     }
173
174     public LongBuffer JavaDoc put(LongBuffer JavaDoc src) {
175
176     if (src instanceof HeapLongBuffer JavaDoc) {
177         if (src == this)
178         throw new IllegalArgumentException JavaDoc();
179         HeapLongBuffer JavaDoc sb = (HeapLongBuffer JavaDoc)src;
180         int n = sb.remaining();
181         if (n > remaining())
182         throw new BufferOverflowException JavaDoc();
183         System.arraycopy(sb.hb, sb.ix(sb.position()),
184                  hb, ix(position()), n);
185         sb.position(sb.position() + n);
186         position(position() + n);
187     } else if (src.isDirect()) {
188         int n = src.remaining();
189         if (n > remaining())
190         throw new BufferOverflowException JavaDoc();
191         src.get(hb, ix(position()), n);
192         position(position() + n);
193     } else {
194         super.put(src);
195     }
196     return this;
197
198
199
200     }
201
202     public LongBuffer JavaDoc compact() {
203
204     System.arraycopy(hb, ix(position()), hb, ix(0), remaining());
205     position(remaining());
206     limit(capacity());
207     return this;
208
209
210
211     }
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566
567     public ByteOrder JavaDoc order() {
568     return ByteOrder.nativeOrder();
569     }
570
571
572
573 }
574
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