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oracle.sql
Class CharacterSetWithConverter

java.lang.Object
oracle.sql.CharacterSet
oracle.sql.CharacterSetWithConverter

public abstract class CharacterSetWithConverter

extends CharacterSet

This is an abstract base class that all character sets that use CharacterConverter are based on.

Field Summary

static java.lang.String	BUILD_DATE
static CharacterConverterFactory	ccFactory
static boolean	PRIVATE_TRACE
static boolean	TRACE

Fields inherited from class oracle.sql.CharacterSet

AL16UTF16_CHARSET, AL16UTF16LE_CHARSET, AL24UTFFSS_CHARSET, AL32UTF8_CHARSET, AR8ADOS710_CHARSET, AR8ADOS710T_CHARSET, AR8ADOS720_CHARSET, AR8ADOS720T_CHARSET, AR8APTEC715_CHARSET, AR8APTEC715T_CHARSET, AR8ARABICMAC_CHARSET, AR8ARABICMACS_CHARSET, AR8ARABICMACT_CHARSET, AR8ASMO708PLUS_CHARSET, AR8ASMO8X_CHARSET, AR8EBCDICX_CHARSET, AR8HPARABIC8T_CHARSET, AR8ISO8859P6_CHARSET, AR8MSAWIN_CHARSET, AR8MUSSAD768_CHARSET, AR8MUSSAD768T_CHARSET, AR8NAFITHA711_CHARSET, AR8NAFITHA711T_CHARSET, AR8NAFITHA721_CHARSET, AR8NAFITHA721T_CHARSET, AR8SAKHR706_CHARSET, AR8SAKHR707_CHARSET, AR8SAKHR707T_CHARSET, AR8XBASIC_CHARSET, ASCII_CHARSET, BG8MSWIN_CHARSET, BG8PC437S_CHARSET, BLT8CP921_CHARSET, BLT8EBCDIC1112_CHARSET, BLT8MSWIN1257_CHARSET, BLT8PC775_CHARSET, BN8BSCII_CHARSET, CDN8PC863_CHARSET, CH7DEC_CHARSET, CL8BS2000_CHARSET, CL8EBCDIC1025_CHARSET, CL8EBCDIC1025X_CHARSET, CL8ISO8859P5_CHARSET, CL8KOI8R_CHARSET, CL8MACCYRILLIC_CHARSET, CL8MACCYRILLICS_CHARSET, CL8MSWIN1251_CHARSET, D7DEC_CHARSET, D7SIEMENS9780X_CHARSET, D8BS2000_CHARSET, D8EBCDIC273_CHARSET, DEFAULT_CHARSET, DK7SIEMENS9780X_CHARSET, DK8BS2000_CHARSET, DK8EBCDIC277_CHARSET, E7DEC_CHARSET, E7SIEMENS9780X_CHARSET, E8BS2000_CHARSET, EE8EBCDIC870_CHARSET, EE8ISO8859P2_CHARSET, EE8MACCE_CHARSET, EE8MACCES_CHARSET, EE8MACCROATIAN_CHARSET, EE8MACCROATIANS_CHARSET, EE8MSWIN1250_CHARSET, EE8PC852_CHARSET, EEC8EUROASCI_CHARSET, EEC8EUROPA3_CHARSET, EL8DEC_CHARSET, EL8EBCDIC875_CHARSET, EL8GCOS7_CHARSET, EL8ISO8859P7_CHARSET, EL8MACGREEK_CHARSET, EL8MACGREEKS_CHARSET, EL8MSWIN1253_CHARSET, EL8PC437S_CHARSET, EL8PC737_CHARSET, EL8PC851_CHARSET, EL8PC869_CHARSET, ET8MSWIN923_CHARSET, F7DEC_CHARSET, F7SIEMENS9780X_CHARSET, F8BS2000_CHARSET, F8EBCDIC297_CHARSET, HU8ABMOD_CHARSET, HU8CWI2_CHARSET, I7DEC_CHARSET, I7SIEMENS9780X_CHARSET, I8EBCDIC280_CHARSET, IN8ISCII_CHARSET, IS8MACICELANDIC_CHARSET, IS8MACICELANDICS_CHARSET, IS8PC861_CHARSET, ISO_LATIN_1_CHARSET, IW7IS960_CHARSET, IW8EBCDIC1086_CHARSET, IW8EBCDIC424_CHARSET, IW8ISO8859P8_CHARSET, IW8MACHEBREW_CHARSET, IW8MACHEBREWS_CHARSET, IW8MSWIN1255_CHARSET, IW8PC1507_CHARSET, JA16DBCS_CHARSET, JA16DBCSFIXED_CHARSET, JA16EBCDIC930_CHARSET, JA16EUC_CHARSET, JA16EUCFIXED_CHARSET, JA16EUCTILDE_CHARSET, JA16EUCYEN_CHARSET, JA16MACSJIS_CHARSET, JA16SJIS_CHARSET, JA16SJISFIXED_CHARSET, JA16SJISTILDE_CHARSET, JA16SJISYEN_CHARSET, JA16TSTSET_CHARSET, JA16TSTSET2_CHARSET, JA16VMS_CHARSET, KO16DBCS_CHARSET, KO16DBCSFIXED_CHARSET, KO16KSC5601_CHARSET, KO16KSC5601FIXED_CHARSET, KO16KSCCS_CHARSET, KO16MSWIN949_CHARSET, KO16TSTSET_CHARSET, LA8ISO6937_CHARSET, LA8PASSPORT_CHARSET, LT8MSWIN921_CHARSET, LT8PC772_CHARSET, LT8PC774_CHARSET, LV8PC1117_CHARSET, LV8PC8LR_CHARSET, LV8RST104090_CHARSET, N7SIEMENS9780X_CHARSET, N8PC865_CHARSET, NDK7DEC_CHARSET, NE8ISO8859P10_CHARSET, NEE8ISO8859P4_CHARSET, NL7DEC_CHARSET, RU8BESTA_CHARSET, RU8PC855_CHARSET, RU8PC866_CHARSET, S7DEC_CHARSET, S7SIEMENS9780X_CHARSET, S8BS2000_CHARSET, S8EBCDIC278_CHARSET, SE8ISO8859P3_CHARSET, SF7ASCII_CHARSET, SF7DEC_CHARSET, TH8MACTHAI_CHARSET, TH8MACTHAIS_CHARSET, TH8TISASCII_CHARSET, TH8TISEBCDIC_CHARSET, TR7DEC_CHARSET, TR8DEC_CHARSET, TR8EBCDIC1026_CHARSET, TR8MACTURKISH_CHARSET, TR8MACTURKISHS_CHARSET, TR8MSWIN1254_CHARSET, TR8PC857_CHARSET, UNICODE_1_CHARSET, UNICODE_2_CHARSET, US16TSTFIXED_CHARSET, US7ASCII_CHARSET, US8BS2000_CHARSET, US8ICL_CHARSET, US8NOOP_CHARSET, US8PC437_CHARSET, UTF8_CHARSET, UTFE_CHARSET, VN8MSWIN1258_CHARSET, VN8VN3_CHARSET, WE8BS2000_CHARSET, WE8BS2000L5_CHARSET, WE8DEC_CHARSET, WE8DECTST_CHARSET, WE8DG_CHARSET, WE8EBCDIC1047_CHARSET, WE8EBCDIC284_CHARSET, WE8EBCDIC285_CHARSET, WE8EBCDIC37_CHARSET, WE8EBCDIC37C_CHARSET, WE8EBCDIC500_CHARSET, WE8EBCDIC500C_CHARSET, WE8EBCDIC871_CHARSET, WE8GCOS7_CHARSET, WE8HP_CHARSET, WE8ICL_CHARSET, WE8ISO8859P1_CHARSET, WE8ISO8859P9_CHARSET, WE8ISOICLUK_CHARSET, WE8MACROMAN8_CHARSET, WE8MACROMAN8S_CHARSET, WE8MSWIN1252_CHARSET, WE8NCR4970_CHARSET, WE8NEXTSTEP_CHARSET, WE8PC850_CHARSET, WE8PC860_CHARSET, WE8ROMAN8_CHARSET, YUG7ASCII_CHARSET, ZHS16CGB231280_CHARSET, ZHS16CGB231280FIXED_CHARSET, ZHS16DBCS_CHARSET, ZHS16DBCSFIXED_CHARSET, ZHS16GBK_CHARSET, ZHS16GBKFIXED_CHARSET, ZHS16MACCGB231280_CHARSET, ZHS16MSWIN936_CHARSET, ZHS32GB18030, ZHT16BIG5_CHARSET, ZHT16BIG5FIXED_CHARSET, ZHT16CCDC_CHARSET, ZHT16DBCS_CHARSET, ZHT16DBCSFIXED_CHARSET, ZHT16DBT_CHARSET, ZHT16MSWIN950_CHARSET, ZHT32EUC_CHARSET, ZHT32EUCFIXED_CHARSET, ZHT32SOPS_CHARSET, ZHT32TRIS_CHARSET, ZHT32TRISFIXED_CHARSET

Method Summary

byte[]	convert(CharacterSet from, byte[] source, int offset, int count) Converts bytes in some representation to oracleId representation.
byte[]	convert(java.lang.String s) Convert a String to bytes in oracleId representation.
byte[]	convertWithReplacement(java.lang.String s) Convert a String to bytes in oracleId representation.
boolean	isConvertibleFrom(CharacterSet source) Are conversions supported.
boolean	isLossyFrom(CharacterSet from) A conversion looses information if the mapping is not invertible.
java.lang.String	toString(byte[] bytes, int offset, int count) Convert bytes in oracleId representation to a String.
java.lang.String	toStringWithReplacement(byte[] bytes, int offset, int count) Convert bytes in oracleId representation to a String.

Methods inherited from class oracle.sql.CharacterSet

AL16UTF16BytesToJavaChars, AL16UTF16BytesToString, AL32UTF8ToJavaChar, AL32UTF8ToString, AL32UTF8ToString, convertAL16UTF16BytesToJavaChars, convertAL16UTF16LEBytesToJavaChars, convertAL32UTF8BytesToJavaChars, convertAL32UTF8BytesToJavaChars, convertASCIIBytesToJavaChars, convertJavaCharsToAL16UTF16Bytes, convertJavaCharsToAL16UTF16LEBytes, convertJavaCharsToAL32UTF8Bytes, convertJavaCharsToASCIIBytes, convertJavaCharsToISOLATIN1Bytes, convertJavaCharsToUTFBytes, convertUnshared, convertUTF32toUTF16, convertUTFBytesToJavaChars, convertUTFBytesToJavaChars, encodedByteLength, encodedByteLength, equals, getOracleId, hashCode, isUnicode, javaCharsToAL16UTF16Bytes, javaCharsToAL16UTF16LEBytes, make, string32UTF8Length, stringToAL16UTF16Bytes, stringToAL16UTF16LEBytes, stringToAL32UTF8, stringToASCII, stringToUTF, stringUTFLength, toString, UTFToJavaChar, UTFToJavaChar, UTFToJavaCharWithReplacement, UTFToString, UTFToString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Field Detail

ccFactory

public static CharacterConverterFactory ccFactory

BUILD_DATE

public static final java.lang.String BUILD_DATE

See Also:

Constant Field Values

TRACE

public static final boolean TRACE

See Also:

Constant Field Values

PRIVATE_TRACE

public static final boolean PRIVATE_TRACE

See Also:

Constant Field Values

Method Detail

isLossyFrom

public boolean isLossyFrom(CharacterSet from)

Description copied from class: CharacterSet

A conversion looses information if the mapping is not invertible. (A mathematicial would say that the map of characters in from to this is not injective.)

Specified by:

isLossyFrom in class CharacterSet

Parameters:

from - a CharacterSet being tested for compatibility with this CharacterSet.

Returns:

true if characters in the from character set can be mapped uniquely to characters in oracleId representation.

isConvertibleFrom

public boolean isConvertibleFrom(CharacterSet source)

Description copied from class: CharacterSet

Are conversions supported.

Specified by:

isConvertibleFrom in class CharacterSet

Parameters:

source - a CharacterSet to inquire about

Returns:

true if conversion from source to oracleId is supported. If it isn't supported attempts to convert will always throw exceptions.

toStringWithReplacement

public java.lang.String toStringWithReplacement(byte[] bytes,
                                                int offset,
                                                int count)

Description copied from class: CharacterSet

Convert bytes in oracleId representation to a String. If a character has no Unicode representation the effect is unspecified. The conversion might omit it, or replace it with a special character. The preferred result is replacement by a single character, but it is not guaranteed. If the conversion isn't supported at all, the result may be a fixed string.

Specified by:

toStringWithReplacement in class CharacterSet

Parameters:

bytes - a array containing characters represented in this character set.

offset - the index of the first byte or the charcters

count - the number of bytes to be converted.

Returns:

the String resulting from converting to UCS-2.

toString

public java.lang.String toString(byte[] bytes,
                                 int offset,
                                 int count)
                          throws java.sql.SQLException

Description copied from class: CharacterSet

Convert bytes in oracleId representation to a String. The difference between toStringInvertible and plain toString is that toStringInvertible will throw an exception when toString would make some replacement.

Overrides:

toString in class CharacterSet

Parameters:

bytes - a array containing characters represented in this character set.

offset - the index of the first byte or the charcters

count - the number of bytes to be converted.

Returns:

the String resulting from converting to UCS-2.

Throws:

java.sql.SQLException - when conversion is not supported.

convert

public byte[] convert(java.lang.String s)
               throws java.sql.SQLException

Description copied from class: CharacterSet

Convert a String to bytes in oracleId representation.

Specified by:

convert in class CharacterSet

Returns:

an array containing the sequence of bytes in oracleId representation that represent the sequence of Unicode characters in String.

Throws:

java.sql.SQLException - when the oracleId does not support conversion from Unicode.

convertWithReplacement

public byte[] convertWithReplacement(java.lang.String s)

Description copied from class: CharacterSet

Convert a String to bytes in oracleId representation. A String is always produced even when the conversion isn't supported or it contains characters that do not have a representation in oracleId. The usual conversion is to replace characters that don't have a representation with some fixed character, but that is not guranteed.

Specified by:

convertWithReplacement in class CharacterSet

Returns:

an array containing the sequence of bytes in oracleId representation that represent the sequence of Unicode characters in String.

convert

public byte[] convert(CharacterSet from,
                      byte[] source,
                      int offset,
                      int count)
               throws java.sql.SQLException

Description copied from class: CharacterSet

Converts bytes in some representation to oracleId representation. Note that the input is not guaranteed to be different from the output. If a copy is always wanted then use convertUnshared.

Specified by:

convert in class CharacterSet

Parameters:

from - the character set of the input bytes

source - an array of bytes containing the bytes to be converted

offset - the index of the first byte to be converted

count - the number of bytes to be converted

Returns:

a byte array in the Oracle character set

Throws:

java.sql.SQLException - if the conversion is not supported

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