1 package nom.tam.util.type;
2
3 /*
4 * #%L
5 * nom.tam FITS library
6 * %%
7 * Copyright (C) 2004 - 2024 nom-tam-fits
8 * %%
9 * This is free and unencumbered software released into the public domain.
10 *
11 * Anyone is free to copy, modify, publish, use, compile, sell, or
12 * distribute this software, either in source code form or as a compiled
13 * binary, for any purpose, commercial or non-commercial, and by any
14 * means.
15 *
16 * In jurisdictions that recognize copyright laws, the author or authors
17 * of this software dedicate any and all copyright interest in the
18 * software to the public domain. We make this dedication for the benefit
19 * of the public at large and to the detriment of our heirs and
20 * successors. We intend this dedication to be an overt act of
21 * relinquishment in perpetuity of all present and future rights to this
22 * software under copyright law.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
27 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
28 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
29 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
30 * OTHER DEALINGS IN THE SOFTWARE.
31 * #L%
32 */
33
34 import java.nio.ByteBuffer;
35
36 import nom.tam.fits.FitsFactory;
37
38 /**
39 * A FITS character element. Unlike Java characters, which use unicode, Java has only ASCII character type. For
40 * historical reasons we store Java Unicode characters as 16-bit short values by default, but the more conventional FITS
41 * standard is to store them as 8-bit ASCII. You can select which method to use to store <code>char[]</code> arrays in
42 * FITS binary tables using {@link FitsFactory#setUseUnicodeChars(boolean)}.
43 *
44 * @see FitsFactory#setUseUnicodeChars(boolean)
45 */
46 class CharType extends ElementType<ByteBuffer> {
47
48 protected CharType() {
49 super(0, false, char.class, Character.class, null, 'C', 0);
50 }
51
52 @Override
53 public int size() {
54 return FitsFactory.isUseUnicodeChars() ? ElementType.SHORT.size() : ElementType.BYTE.size();
55 }
56 }