Package org.apache.derby.iapi.types
Class DateTimeParser
java.lang.Object
org.apache.derby.iapi.types.DateTimeParser
This class provides a simple regular expression parser for standard format dates, times, and timestamps
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Field Summary
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescription(package private) void
checkEnd()
Check that we are at the end of the string: that the rest of the characters, if any, are blanks.(package private) char
(package private) char
(package private) int
parseChoice
(String[] choices) Determine if the next characters are one of a choice of strings.(package private) int
parseInt
(int maxDigits, boolean truncationAllowed, char[] separator, boolean isFraction) Parse the next integer.private void
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Field Details
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str
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len
private int len -
fieldStart
private int fieldStart -
currentSeparator
private char currentSeparator
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Constructor Details
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DateTimeParser
DateTimeParser(String str)
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Method Details
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parseInt
int parseInt(int maxDigits, boolean truncationAllowed, char[] separator, boolean isFraction) throws StandardException Parse the next integer.- Parameters:
maxDigits
- the maximum number of digitstruncationAllowed
- If true then leading zeroes may be ommitted. If false then the integer must be exactly ndigits long.separator
- The separator at the end of the integer. If zero then the integer must be at the end of the string but may be followed by spaces.isFraction
- If true then the returned integer will be multiplied by 10**(maxDigits - actualDigitCount)- Returns:
- the integer.
- Throws:
StandardException
- invalid syntax.
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parseChoice
Determine if the next characters are one of a choice of strings.- Parameters:
choices
- An array of strings.- Returns:
- An index in choices.
- Throws:
StandardException
- if the next characters are not in choices.
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updateCurrentSeparator
private void updateCurrentSeparator() -
checkEnd
Check that we are at the end of the string: that the rest of the characters, if any, are blanks.- Throws:
StandardException
- if there are more non-blank characters.
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nextSeparator
char nextSeparator()- Returns:
- the next separator, 0 if there are none
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getCurrentSeparator
char getCurrentSeparator()- Returns:
- the separator between the last parsed integer and the next integer, 0 if the parser is at the end of the string.
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