49 |
|
|
50 |
protected char [] backing_buffer; |
protected char [] backing_buffer; |
51 |
|
|
52 |
public static CharBuffer allocateDirect (int capacity) |
private int array_offset; |
53 |
{ |
|
54 |
return new CharBufferImpl (capacity, 0, capacity); |
/** |
55 |
} |
* Allocats a non-direct character buffer. |
56 |
|
*/ |
57 |
public static CharBuffer allocate(int capacity) |
public static CharBuffer allocate(int capacity) |
58 |
{ |
{ |
59 |
return new CharBufferImpl (capacity, 0, capacity); |
return new CharBufferImpl (capacity, 0, capacity); |
60 |
} |
} |
61 |
|
|
62 |
|
/** |
63 |
|
* Wraps a character array into a buffer. |
64 |
|
* |
65 |
|
* @exception IndexOutOfBoundsException If the preconditions on the offset |
66 |
|
* and length parameters do not hold |
67 |
|
*/ |
68 |
final public static CharBuffer wrap (char[] array, int offset, int length) |
final public static CharBuffer wrap (char[] array, int offset, int length) |
69 |
{ |
{ |
70 |
return new CharBufferImpl (array, offset, length); |
return new CharBufferImpl (array, offset, offset + length); |
71 |
} |
} |
72 |
|
|
73 |
|
/** |
74 |
|
* Wraps a character array into a buffer. |
75 |
|
*/ |
76 |
final public static CharBuffer wrap (char[] array) |
final public static CharBuffer wrap (char[] array) |
77 |
{ |
{ |
78 |
return wrap (array, 0, array.length); |
return wrap (array, 0, array.length); |
79 |
} |
} |
80 |
|
|
81 |
|
/** |
82 |
|
* Wraps a character sequence into a buffer. |
83 |
|
* |
84 |
|
* @exception IndexOutOfBoundsException If the preconditions on the offset |
85 |
|
* and length parameters do not hold |
86 |
|
*/ |
87 |
final public static CharBuffer wrap (CharSequence cs, int offset, int length) |
final public static CharBuffer wrap (CharSequence cs, int offset, int length) |
88 |
{ |
{ |
89 |
return wrap (cs.toString ().toCharArray (), 0, length); |
return wrap (cs.toString ().toCharArray (), 0, length); |
90 |
} |
} |
91 |
|
|
92 |
|
/** |
93 |
|
* Wraps a character sequence into a buffer. |
94 |
|
*/ |
95 |
final public static CharBuffer wrap (CharSequence cs) |
final public static CharBuffer wrap (CharSequence cs) |
96 |
{ |
{ |
97 |
return wrap (cs, 0, cs.length ()); |
return wrap (cs, 0, cs.length ()); |
98 |
} |
} |
99 |
|
|
100 |
|
/** |
101 |
|
* Relative bulk get method. |
102 |
|
* |
103 |
|
* @exception BufferUnderflowException If there are fewer than length |
104 |
|
* characters remaining in this buffer. |
105 |
|
* @exception IndexOutOfBoundsException If the preconditions on the offset |
106 |
|
* and length parameters do not hold. |
107 |
|
*/ |
108 |
final public CharBuffer get (char[] dst, int offset, int length) |
final public CharBuffer get (char[] dst, int offset, int length) |
109 |
{ |
{ |
110 |
|
if (offset < 0 || |
111 |
|
offset > dst.length || |
112 |
|
length < 0 || |
113 |
|
length > (dst.length - offset)) |
114 |
|
throw new IndexOutOfBoundsException (); |
115 |
|
|
116 |
for (int i = offset; i < offset + length; i++) |
for (int i = offset; i < offset + length; i++) |
117 |
dst [i] = get (); |
dst [i] = get (); |
118 |
|
|
119 |
return this; |
return this; |
120 |
} |
} |
121 |
|
|
122 |
|
/** |
123 |
|
* Relative bulk get method. |
124 |
|
* |
125 |
|
* @exception BufferUnderflowException If there are fewer than length |
126 |
|
* characters remaining in this buffer. |
127 |
|
*/ |
128 |
final public CharBuffer get (char[] dst) |
final public CharBuffer get (char[] dst) |
129 |
{ |
{ |
130 |
return get (dst, 0, dst.length); |
return get (dst, 0, dst.length); |
131 |
} |
} |
132 |
|
|
133 |
|
/** |
134 |
|
* Relative bulk put method. |
135 |
|
* |
136 |
|
* @exception BufferOverflowException If there is insufficient space in this |
137 |
|
* buffer for the remaining characters in the source buffer. |
138 |
|
* @exception IllegalArgumentException If the source buffer is this buffer. |
139 |
|
* @exception ReadOnlyBufferException If this buffer is read-only. |
140 |
|
*/ |
141 |
final public CharBuffer put (CharBuffer src) |
final public CharBuffer put (CharBuffer src) |
142 |
{ |
{ |
143 |
|
if (src == this) |
144 |
|
throw new IllegalArgumentException (); |
145 |
|
|
146 |
while (src.hasRemaining ()) |
while (src.hasRemaining ()) |
147 |
put (src.get ()); |
{ |
148 |
|
put (src.get ()); |
149 |
|
} |
150 |
|
|
151 |
return this; |
return this; |
152 |
} |
} |
153 |
|
|
154 |
|
/** |
155 |
|
* Relative bulk put method. |
156 |
|
* |
157 |
|
* @exception BufferOverflowException If there is insufficient space in this |
158 |
|
* buffer for the remaining characters in the source buffer. |
159 |
|
* @exception IndexOutOfBoundsException If the preconditions on the offset |
160 |
|
* and length parameters do not hold. |
161 |
|
* @exception ReadOnlyBufferException If this buffer is read-only. |
162 |
|
*/ |
163 |
final public CharBuffer put (char[] src, int offset, int length) |
final public CharBuffer put (char[] src, int offset, int length) |
164 |
{ |
{ |
165 |
|
if (offset < 0 || |
166 |
|
offset > src.length || |
167 |
|
length < 0 || |
168 |
|
length > (src.length - offset)) |
169 |
|
throw new IndexOutOfBoundsException (); |
170 |
|
|
171 |
for (int i = offset; i < offset + length; i++) |
for (int i = offset; i < offset + length; i++) |
172 |
put (src[i]); |
{ |
173 |
|
put (src[i]); |
174 |
|
} |
175 |
|
|
176 |
return this; |
return this; |
177 |
} |
} |
178 |
|
|
179 |
|
/** |
180 |
|
* Relative bulk put method. |
181 |
|
* |
182 |
|
* @exception BufferOverflowException If there is insufficient space in this |
183 |
|
* buffer for the remaining characters in the source buffer. |
184 |
|
* @exception IndexOutOfBoundsException If the preconditions on the start and |
185 |
|
* end parameters do not hold. |
186 |
|
* @exception ReadOnlyBufferException If this buffer is read-only. |
187 |
|
*/ |
188 |
|
public CharBuffer put(String src, int offset, int length) |
189 |
|
{ |
190 |
|
return put (src.toCharArray (), offset, length); |
191 |
|
} |
192 |
|
|
193 |
|
/** |
194 |
|
* Relative bulk put method. |
195 |
|
* |
196 |
|
* @exception BufferOverflowException If there is insufficient space in this |
197 |
|
* buffer for the remaining characters in the source buffer. |
198 |
|
* @exception ReadOnlyBufferException If this buffer is read-only. |
199 |
|
*/ |
200 |
public final CharBuffer put(String src) |
public final CharBuffer put(String src) |
201 |
{ |
{ |
202 |
return put (src.toCharArray (), 0, src.length ()); |
return put (src, 0, src.length ()); |
203 |
} |
} |
204 |
|
|
205 |
/** |
/** |
217 |
return put (src, 0, src.length); |
return put (src, 0, src.length); |
218 |
} |
} |
219 |
|
|
220 |
|
/** |
221 |
|
* Tells wether this buffer has a backing array or not. |
222 |
|
*/ |
223 |
public final boolean hasArray () |
public final boolean hasArray () |
224 |
{ |
{ |
225 |
return backing_buffer != null; |
return backing_buffer != null; |
226 |
} |
} |
227 |
|
|
228 |
|
/** |
229 |
|
* Retrieves the backing buffer. |
230 |
|
* |
231 |
|
* @exception ReadOnlyBufferException If this buffer is read-only. |
232 |
|
* @exception UnsupportedOperationException If this buffer is not backed by an accessible array. |
233 |
|
*/ |
234 |
public final char[] array () |
public final char[] array () |
235 |
{ |
{ |
236 |
|
if (!hasArray ()) |
237 |
|
throw new UnsupportedOperationException (); |
238 |
|
|
239 |
|
if (isReadOnly ()) |
240 |
|
throw new ReadOnlyBufferException (); |
241 |
|
|
242 |
return backing_buffer; |
return backing_buffer; |
243 |
} |
} |
244 |
|
|
245 |
|
/** |
246 |
|
* Returns the offset within this buffer's backing array of the first element of the buffer. |
247 |
|
* |
248 |
|
* @exception ReadOnlyBufferException If this buffer is read-only. |
249 |
|
* @exception UnsupportedOperationException If this buffer is not backed by an accessible array. |
250 |
|
*/ |
251 |
public final int arrayOffset () |
public final int arrayOffset () |
252 |
{ |
{ |
253 |
return 0; |
if (!hasArray ()) |
254 |
|
throw new UnsupportedOperationException (); |
255 |
|
|
256 |
|
if (isReadOnly ()) |
257 |
|
throw new ReadOnlyBufferException (); |
258 |
|
|
259 |
|
return array_offset; |
260 |
} |
} |
261 |
|
|
262 |
|
/** |
263 |
|
* Returns the current hash code of this buffer. |
264 |
|
*/ |
265 |
public int hashCode () |
public int hashCode () |
266 |
{ |
{ |
267 |
|
// FIXME |
268 |
return super.hashCode (); |
return super.hashCode (); |
269 |
} |
} |
270 |
|
|
271 |
|
/** |
272 |
|
* Tells whether or not this buffer is equal to another object. |
273 |
|
*/ |
274 |
public boolean equals (Object obj) |
public boolean equals (Object obj) |
275 |
{ |
{ |
276 |
if (obj instanceof CharBuffer) |
if (obj instanceof CharBuffer) |
279 |
return false; |
return false; |
280 |
} |
} |
281 |
|
|
282 |
|
/** |
283 |
|
* Creates a new character buffer that represents the specified subsequence |
284 |
|
* of this buffer, relative to the current position. |
285 |
|
* |
286 |
|
* @exception IndexOutOfBoundsException If the preconditions on start and end |
287 |
|
* do not hold. |
288 |
|
*/ |
289 |
public abstract CharSequence subSequence (int start, int end); |
public abstract CharSequence subSequence (int start, int end); |
290 |
|
|
291 |
|
/** |
292 |
|
* Returns the length of this character buffer. |
293 |
|
*/ |
294 |
public final int length () |
public final int length () |
295 |
{ |
{ |
296 |
return remaining (); |
return remaining (); |
297 |
} |
} |
298 |
|
|
299 |
public final char charAt (int i) |
/** |
300 |
|
* Reads the character at the given index relative to the current position. |
301 |
|
* |
302 |
|
* @exception IndexOutOfBoundsException If the preconditions on index |
303 |
|
* do not hold. |
304 |
|
*/ |
305 |
|
public final char charAt (int index) |
306 |
{ |
{ |
307 |
if (i < 0 || i >= length ()) |
if (index < 0 || |
308 |
|
index >= length ()) |
309 |
throw new IndexOutOfBoundsException (); |
throw new IndexOutOfBoundsException (); |
310 |
|
|
311 |
return get (position () + i); |
return get (position () + index); |
312 |
} |
} |
313 |
|
|
314 |
|
/** |
315 |
|
* Retrieves the content of the character buffer as string. |
316 |
|
*/ |
317 |
public String toString() |
public String toString() |
318 |
{ |
{ |
319 |
if (hasArray ()) |
if (hasArray ()) |
328 |
|
|
329 |
return sb.toString (); |
return sb.toString (); |
330 |
} |
} |
331 |
|
|
332 |
|
/** |
333 |
|
* Compares this buffer to another object. |
334 |
|
* |
335 |
|
* @exception ClassCastException If the argument is not a char buffer. |
336 |
|
*/ |
337 |
public int compareTo(Object obj) |
public int compareTo(Object obj) |
338 |
{ |
{ |
339 |
CharBuffer a = (CharBuffer) obj; |
CharBuffer a = (CharBuffer) obj; |
358 |
return 0; |
return 0; |
359 |
} |
} |
360 |
|
|
361 |
public final ByteOrder order() |
/** |
362 |
{ |
* Retrieves the current endianess of this buffer. |
363 |
return endian; |
*/ |
364 |
} |
public abstract ByteOrder order(); |
|
|
|
|
public final CharBuffer order(ByteOrder bo) |
|
|
{ |
|
|
endian = bo; |
|
|
return this; |
|
|
} |
|
365 |
|
|
366 |
|
/** |
367 |
|
* Relative bulk get method. |
368 |
|
* |
369 |
|
* @exception BufferUnderflowException If there are fewer than length |
370 |
|
* characters remaining in this buffer. |
371 |
|
*/ |
372 |
public abstract char get(); |
public abstract char get(); |
373 |
|
|
374 |
|
/** |
375 |
|
* Relative bulk get method. |
376 |
|
* |
377 |
|
* @exception BufferOverflowException If this buffer's current position is |
378 |
|
* not smaller than its limit. |
379 |
|
* @exception ReadOnlyBufferException If this buffer is read-only. |
380 |
|
*/ |
381 |
public abstract CharBuffer put(char b); |
public abstract CharBuffer put(char b); |
382 |
|
|
383 |
|
/** |
384 |
|
* Absolute bulk get method. |
385 |
|
* |
386 |
|
* @exception IndexOutOfBoundsException If index is negative or not smaller |
387 |
|
* than the buffer's limit. |
388 |
|
*/ |
389 |
public abstract char get(int index); |
public abstract char get(int index); |
390 |
|
|
391 |
|
/** |
392 |
|
* Absolute bulk put method. |
393 |
|
* |
394 |
|
* @exception IndexOutOfBoundsException If index is negative or not smaller |
395 |
|
* than the buffer's limit. |
396 |
|
* @exception ReadOnlyBufferException If this buffer is read-only. |
397 |
|
*/ |
398 |
public abstract CharBuffer put(int index, char b); |
public abstract CharBuffer put(int index, char b); |
399 |
|
|
400 |
|
/** |
401 |
|
* Compacts this buffer. |
402 |
|
* |
403 |
|
* @exception ReadOnlyBufferException If this buffer is read-only. |
404 |
|
*/ |
405 |
public abstract CharBuffer compact(); |
public abstract CharBuffer compact(); |
406 |
|
|
407 |
|
/** |
408 |
|
* Tells wether or not this is a direct buffer. |
409 |
|
*/ |
410 |
public abstract boolean isDirect(); |
public abstract boolean isDirect(); |
411 |
|
|
412 |
|
/** |
413 |
|
* Creates a new character buffer whose content is a shared subsequence of |
414 |
|
* this buffer's content. |
415 |
|
*/ |
416 |
public abstract CharBuffer slice(); |
public abstract CharBuffer slice(); |
417 |
|
|
418 |
|
/** |
419 |
|
* Creates a new character buffer that shares this buffer's content. |
420 |
|
*/ |
421 |
public abstract CharBuffer duplicate(); |
public abstract CharBuffer duplicate(); |
422 |
|
|
423 |
|
/** |
424 |
|
* Creates a new, read-only character buffer that shares this buffer's |
425 |
|
* content. |
426 |
|
*/ |
427 |
public abstract CharBuffer asReadOnlyBuffer(); |
public abstract CharBuffer asReadOnlyBuffer(); |
|
public abstract ShortBuffer asShortBuffer(); |
|
|
public abstract CharBuffer asCharBuffer(); |
|
|
public abstract IntBuffer asIntBuffer(); |
|
|
public abstract LongBuffer asLongBuffer(); |
|
|
public abstract FloatBuffer asFloatBuffer(); |
|
|
public abstract DoubleBuffer asDoubleBuffer(); |
|
|
public abstract char getChar(); |
|
|
public abstract CharBuffer putChar(char value); |
|
|
public abstract char getChar(int index); |
|
|
public abstract CharBuffer putChar(int index, char value); |
|
|
public abstract short getShort(); |
|
|
public abstract CharBuffer putShort(short value); |
|
|
public abstract short getShort(int index); |
|
|
public abstract CharBuffer putShort(int index, short value); |
|
|
public abstract int getInt(); |
|
|
public abstract CharBuffer putInt(int value); |
|
|
public abstract int getInt(int index); |
|
|
public abstract CharBuffer putInt(int index, int value); |
|
|
public abstract long getLong(); |
|
|
public abstract CharBuffer putLong(long value); |
|
|
public abstract long getLong(int index); |
|
|
public abstract CharBuffer putLong(int index, long value); |
|
|
public abstract float getFloat(); |
|
|
public abstract CharBuffer putFloat(float value); |
|
|
public abstract float getFloat(int index); |
|
|
public abstract CharBuffer putFloat(int index, float value); |
|
|
public abstract double getDouble(); |
|
|
public abstract CharBuffer putDouble(double value); |
|
|
public abstract double getDouble(int index); |
|
|
public abstract CharBuffer putDouble(int index, double value); |
|
428 |
} |
} |