| java.lang.Object
 org.apache.derby.iapi.util.StringUtil
| StringUtil | | public class StringUtil (Code) | | A set of public static methods for dealing with Strings
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| Method Summary | |
| public static boolean | SQLEqualsIgnoreCase(String s1, String s2)
| | public static String | SQLToLowerCase(String s)
| | public static String | SQLToUpperCase(String s)
| | final public static String | formatForPrint(String input)
Used to print out a string for error messages,
chops is off at 60 chars for historical reasons. | | public static byte[] | fromHexString(String s, int offset, int length)
Convert a hexidecimal string generated by toHexString() back
into a byte array.
Parameters:
s - String to convert
Parameters:
offset - starting character (zero based) to convert.
Parameters:
length - number of characters to convert. | | public static byte[] | getAsciiBytes(String input)
Get 7-bit ASCII character array from input String.
The lower 7 bits of each character in the input string is assumed to be
the ASCII character value.
Hexadecimal - Character
| 00 NUL| 01 SOH| 02 STX| 03 ETX| 04 EOT| 05 ENQ| 06 ACK| 07 BEL|
| 08 BS | 09 HT | 0A NL | 0B VT | 0C NP | 0D CR | 0E SO | 0F SI |
| 10 DLE| 11 DC1| 12 DC2| 13 DC3| 14 DC4| 15 NAK| 16 SYN| 17 ETB|
| 18 CAN| 19 EM | 1A SUB| 1B ESC| 1C FS | 1D GS | 1E RS | 1F US |
| 20 SP | 21 ! | 22 " | 23 # | 24 $ | 25 % | 26 & | 27 ' |
| 28 ( | 29 ) | 2A * | 2B + | 2C , | 2D - | 2E . | | public static String | hexDump(byte[] data)
Convert a byte array to a human-readable String for debugging purposes. | | public static String | slice(String value, int beginOffset, int endOffset, boolean trim)
Return a slice (substring) of the passed in value, optionally trimmed. | | public static byte[] | toHexByte(String str, int offset, int length)
Convert a string into a byte array in hex format.
For each character (b) two bytes are generated, the first byte
represents the high nibble (4 bits) in hexidecimal (b & 0xf0),
the second byte represents the low nibble (b & 0x0f).
The character at str.charAt(0) is represented by the first two bytes
in the returned String.
Parameters:
str - string
Parameters:
offset - starting character (zero based) to convert.
Parameters:
length - number of characters to convert. | | public static String | toHexString(byte[] data, int offset, int length)
Convert a byte array to a String with a hexidecimal format.
The String may be converted back to a byte array using fromHexString.
For each byte (b) two characaters are generated, the first character
represents the high nibble (4 bits) in hexidecimal (b & 0xf0), the second character
represents the low nibble (b & 0x0f).
The byte at data[offset] is represented by the first two characters in the returned String.
Parameters:
data - byte array
Parameters:
offset - starting byte (zero based) to convert.
Parameters:
length - number of bytes to convert. | | public static String[] | toStringArray(Object[] objArray)
A method that receive an array of Objects and return a
String array representation of that array. | | public static String | trimTrailing(String str)
| | public static String | truncate(String value, int length)
Truncate a String to the given length with no warnings
or error raised if it is bigger. |
| SQLEqualsIgnoreCase | | public static boolean SQLEqualsIgnoreCase(String s1, String s2)(Code) | | Compares two strings
Strings will be uppercased in english and compared
equivalent to s1.equalsIgnoreCase(s2)
throws NPE if s1 is null
Parameters:
s1 - first string to compare
Parameters:
s2 - second string to compare true if the two upppercased ENGLISH values are equalreturn false if s2 is null |
| SQLToLowerCase | | public static String SQLToLowerCase(String s)(Code) | | Convert string to lowercase
Return java.util.Locale.ENGLISH lowercasing
Parameters:
s - string to lowercase lowercased string |
| SQLToUpperCase | | public static String SQLToUpperCase(String s)(Code) | | Convert string to uppercase
Always use the java.util.ENGLISH locale
Parameters:
s - string to uppercase uppercased string |
| formatForPrint | | final public static String formatForPrint(String input)(Code) | | Used to print out a string for error messages,
chops is off at 60 chars for historical reasons.
|
| fromHexString | | public static byte[] fromHexString(String s, int offset, int length)(Code) | | Convert a hexidecimal string generated by toHexString() back
into a byte array.
Parameters:
s - String to convert
Parameters:
offset - starting character (zero based) to convert.
Parameters:
length - number of characters to convert. the converted byte array. Returns null if the length isnot a multiple of 2. |
| getAsciiBytes | | public static byte[] getAsciiBytes(String input)(Code) | | Get 7-bit ASCII character array from input String.
The lower 7 bits of each character in the input string is assumed to be
the ASCII character value.
Hexadecimal - Character
| 00 NUL| 01 SOH| 02 STX| 03 ETX| 04 EOT| 05 ENQ| 06 ACK| 07 BEL|
| 08 BS | 09 HT | 0A NL | 0B VT | 0C NP | 0D CR | 0E SO | 0F SI |
| 10 DLE| 11 DC1| 12 DC2| 13 DC3| 14 DC4| 15 NAK| 16 SYN| 17 ETB|
| 18 CAN| 19 EM | 1A SUB| 1B ESC| 1C FS | 1D GS | 1E RS | 1F US |
| 20 SP | 21 ! | 22 " | 23 # | 24 $ | 25 % | 26 & | 27 ' |
| 28 ( | 29 ) | 2A * | 2B + | 2C , | 2D - | 2E . | 2F / |
| 30 0 | 31 1 | 32 2 | 33 3 | 34 4 | 35 5 | 36 6 | 37 7 |
| 38 8 | 39 9 | 3A : | 3B ; | 3C < | 3D = | 3E > | 3F ? |
| 40 @ | 41 A | 42 B | 43 C | 44 D | 45 E | 46 F | 47 G |
| 48 H | 49 I | 4A J | 4B K | 4C L | 4D M | 4E N | 4F O |
| 50 P | 51 Q | 52 R | 53 S | 54 T | 55 U | 56 V | 57 W |
| 58 X | 59 Y | 5A Z | 5B [ | 5C \ | 5D ] | 5E ^ | 5F _ |
| 60 ` | 61 a | 62 b | 63 c | 64 d | 65 e | 66 f | 67 g |
| 68 h | 69 i | 6A j | 6B k | 6C l | 6D m | 6E n | 6F o |
| 70 p | 71 q | 72 r | 73 s | 74 t | 75 u | 76 v | 77 w |
| 78 x | 79 y | 7A z | 7B { | 7C | | 7D } | 7E ~ | 7F DEL|
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| hexDump | | public static String hexDump(byte[] data)(Code) | | Convert a byte array to a human-readable String for debugging purposes.
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| slice | | public static String slice(String value, int beginOffset, int endOffset, boolean trim)(Code) | | Return a slice (substring) of the passed in value, optionally trimmed.
WARNING - endOffset is inclusive for historical reasons, unlike
String.substring() which has an exclusive ending offset.
Parameters:
value - Value to slice, must be non-null.
Parameters:
beginOffset - Inclusive start character
Parameters:
endOffset - Inclusive end character
Parameters:
trim - To trim or not to trim Sliceed value. |
| toHexByte | | public static byte[] toHexByte(String str, int offset, int length)(Code) | | Convert a string into a byte array in hex format.
For each character (b) two bytes are generated, the first byte
represents the high nibble (4 bits) in hexidecimal (b & 0xf0),
the second byte represents the low nibble (b & 0x0f).
The character at str.charAt(0) is represented by the first two bytes
in the returned String.
Parameters:
str - string
Parameters:
offset - starting character (zero based) to convert.
Parameters:
length - number of characters to convert. the byte[] (with hexidecimal format) form of the string (str) |
| toHexString | | public static String toHexString(byte[] data, int offset, int length)(Code) | | Convert a byte array to a String with a hexidecimal format.
The String may be converted back to a byte array using fromHexString.
For each byte (b) two characaters are generated, the first character
represents the high nibble (4 bits) in hexidecimal (b & 0xf0), the second character
represents the low nibble (b & 0x0f).
The byte at data[offset] is represented by the first two characters in the returned String.
Parameters:
data - byte array
Parameters:
offset - starting byte (zero based) to convert.
Parameters:
length - number of bytes to convert. the String (with hexidecimal format) form of the byte array |
| toStringArray | | public static String[] toStringArray(Object[] objArray)(Code) | | A method that receive an array of Objects and return a
String array representation of that array.
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| trimTrailing | | public static String trimTrailing(String str)(Code) | | Trim off trailing blanks but not leading blanks
Parameters:
str - The input with trailing blanks stipped off |
| truncate | | public static String truncate(String value, int length)(Code) | | Truncate a String to the given length with no warnings
or error raised if it is bigger.
Parameters:
value - String to be truncated
Parameters:
length - Maximum length of string Returns value if value is null or value.length() is less or equal to than length, otherwise a String representingvalue truncated to length. |
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