Class CharsetUTF16

java.lang.Object

java.nio.charset.Charset

com.ibm.icu.charset.CharsetICU

com.ibm.icu.charset.CharsetUTF16

All Implemented Interfaces:

Comparable<Charset>

Direct Known Subclasses:

CharsetUTF16BE, CharsetUTF16LE

class CharsetUTF16
extends CharsetICU

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) class	CharsetUTF16.CharsetDecoderUTF16
(package private) class	CharsetUTF16.CharsetEncoderUTF16

Field Summary

Fields

Modifier and Type	Field	Description
private byte[]	bom
private static final byte[]	BOM_BE
private static final byte[]	BOM_LE
private static final int	ENDIAN_XOR_BE
private static final int	ENDIAN_XOR_LE
private int	endianXOR
private byte[]	fromUSubstitution
private static final byte[]	fromUSubstitution_BE
private static final byte[]	fromUSubstitution_LE
private boolean	isBigEndian
private boolean	isEndianSpecified
private static final int	NEED_TO_WRITE_BOM
private static final int	SIGNATURE_LENGTH
private int	version

Fields inherited from class CharsetICU

codepage, conversionType, hasFromUnicodeFallback, hasToUnicodeFallback, icuCanonicalName, maxBytesPerChar, maxCharsPerByte, minBytesPerChar, name, options, platform, ROUNDTRIP_AND_FALLBACK_SET, ROUNDTRIP_SET, subChar, subChar1, subCharLen, unicodeMask

Constructor Summary

Constructors

Constructor	Description
CharsetUTF16(String icuCanonicalName, String javaCanonicalName, String[] aliases)

Method Summary

Modifier and Type	Method	Description
(package private) void	getUnicodeSetImpl(UnicodeSet setFillIn, int which)	This follows ucnv.c method ucnv_detectUnicodeSignature() to detect the start of the stream for example U+FEFF (the Unicode BOM/signature character) that can be ignored.
CharsetDecoder	newDecoder()
CharsetEncoder	newEncoder()

Methods inherited from class CharsetICU

contains, forNameICU, getCharset, getCompleteUnicodeSet, getNonSurrogateUnicodeSet, getUnicodeSet, isFixedWidth, isSurrogate

Methods inherited from class Charset

aliases, availableCharsets, canEncode, compareTo, decode, defaultCharset, displayName, displayName, encode, encode, equals, forName, hashCode, isRegistered, isSupported, name, toString

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

SIGNATURE_LENGTH

private static final int SIGNATURE_LENGTH

See Also:

• Constant Field Values

fromUSubstitution_BE

private static final byte[] fromUSubstitution_BE

fromUSubstitution_LE

private static final byte[] fromUSubstitution_LE

BOM_BE

private static final byte[] BOM_BE

BOM_LE

private static final byte[] BOM_LE

ENDIAN_XOR_BE

private static final int ENDIAN_XOR_BE

See Also:

• Constant Field Values

ENDIAN_XOR_LE

private static final int ENDIAN_XOR_LE

See Also:

• Constant Field Values

NEED_TO_WRITE_BOM

private static final int NEED_TO_WRITE_BOM

See Also:

• Constant Field Values

isEndianSpecified

private boolean isEndianSpecified

isBigEndian

private boolean isBigEndian

endianXOR

private int endianXOR

bom

private byte[] bom

fromUSubstitution

private byte[] fromUSubstitution

version

private int version

Constructor Details

CharsetUTF16

public CharsetUTF16(String icuCanonicalName,
 String javaCanonicalName,
 String[] aliases)

Method Details

newDecoder

public CharsetDecoder newDecoder()

Specified by:

newDecoder in class Charset

newEncoder

public CharsetEncoder newEncoder()

Specified by:

newEncoder in class Charset

getUnicodeSetImpl

void getUnicodeSetImpl(UnicodeSet setFillIn,
 int which)

Description copied from class: CharsetICU

This follows ucnv.c method ucnv_detectUnicodeSignature() to detect the start of the stream for example U+FEFF (the Unicode BOM/signature character) that can be ignored. Detects Unicode signature byte sequences at the start of the byte stream and returns number of bytes of the BOM of the indicated Unicode charset. 0 is returned when no Unicode signature is recognized.

Specified by:

getUnicodeSetImpl in class CharsetICU