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java.lang.Object | +--com.sleepycat.bdb.util.UtfOps
UTF operations with more flexibility than is provided by DataInput and DataOutput.
| Constructor Summary | |
UtfOps()
|
|
| Method Summary | |
static int |
bytesToChars(byte[] bytes,
int byteOffset,
char[] chars,
int charOffset,
int len,
boolean isByteLen)
Converts byte arrays into character arrays. |
static String |
bytesToString(byte[] bytes,
int offset,
int length)
Converts byte arrays into strings. |
static void |
charsToBytes(char[] chars,
int charOffset,
byte[] bytes,
int byteOffset,
int charLength)
Converts character arrays into byte arrays. |
static int |
getByteLength(char[] chars)
Returns the byte length of the UTF string that would be created by converting the given characters to UTF. |
static int |
getByteLength(char[] chars,
int offset,
int length)
Returns the byte length of the UTF string that would be created by converting the given characters to UTF. |
static int |
getCharLength(byte[] bytes)
Returns the number of characters represented by the given UTF string. |
static int |
getCharLength(byte[] bytes,
int offset,
int length)
Returns the number of characters represented by the given UTF string. |
static int |
getZeroTerminatedByteLength(byte[] bytes,
int offset)
Returns the byte length of a null terminated UTF string, not including the terminator. |
static byte[] |
stringToBytes(String string)
Converts strings to byte arrays. |
| Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
public UtfOps()
| Method Detail |
public static int getZeroTerminatedByteLength(byte[] bytes,
int offset)
throws EOFException
bytes - the data containing the UTF string.offset - the beginning of the string the measure.
EOFExceptionpublic static int getByteLength(char[] chars)
chars - the characters that would be converted.
public static int getByteLength(char[] chars,
int offset,
int length)
chars - the characters that would be converted.offset - the first character to be converted.length - the number of characters to be converted.
public static int getCharLength(byte[] bytes)
throws UTFDataFormatException,
EOFException
bytes - the UTF string.
EOFException - if a UTF character sequence at the end of the data
is not complete.
UTFDataFormatException - if an illegal UTF sequence is
encountered.
public static int getCharLength(byte[] bytes,
int offset,
int length)
throws UTFDataFormatException,
EOFException
bytes - the data containing the UTF string.offset - the first byte to be converted.length - the number of byte to be converted.
EOFException - if a UTF character sequence at the end of the data
is not complete.
UTFDataFormatException - if an illegal UTF sequence is
encountered.
public static int bytesToChars(byte[] bytes,
int byteOffset,
char[] chars,
int charOffset,
int len,
boolean isByteLen)
throws UTFDataFormatException,
EOFException
bytes - the source byte data to convertbyteOffset - the offset into the byte array at which
to start the conversionchars - the destination arraycharOffset - the offset into chars at which to begin the copylen - the amount of information to copy into charsisByteLen - if true then len is a measure of bytes, otherwise
len is a measure of characters
EOFException - if a UTF character sequence at the end of the data
is not complete.
UTFDataFormatException - if an illegal UTF sequence is
encountered.
public static void charsToBytes(char[] chars,
int charOffset,
byte[] bytes,
int byteOffset,
int charLength)
chars - the source character data to convertcharOffset - the offset into the character array at which
to start the conversionbytes - the destination arraybyteOffset - the offset into bytes at which to begin the copycharLength - the length of characters to copy into bytes
public static String bytesToString(byte[] bytes,
int offset,
int length)
throws UTFDataFormatException,
EOFException
bytes - the source byte data to convertoffset - the offset into the byte array at which
to start the conversionlength - the number of bytes to be converted.
EOFException - if a UTF character sequence at the end of the data
is not complete.
UTFDataFormatException - if an illegal UTF sequence is
encountered.public static byte[] stringToBytes(String string)
string - the string to convert.
|
Berkeley DB version 4.2.52 |
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