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java.lang.Objectorg.apache.bval.extras.constraints.checkdigit.ModulusValidator<Sedol>
org.apache.bval.extras.constraints.checkdigit.SedolValidator
public final class SedolValidator
Modulus 10 SEDOL (UK Securities) Check Digit calculation/validation.
SEDOL Numbers are 7 character alphanumeric codes used to identify UK Securities (SEDOL stands for Stock Exchange Daily Official List).
Check digit calculation is based on modulus 10 with digits being weighted based on their position, from left to right, as follows:
position: 1 2 3 4 5 6 7
weighting: 1 3 1 7 3 9 1
See Wikipedia - SEDOL for more details.
Constructor Summary | |
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SedolValidator()
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Method Summary | |
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protected int |
toInt(char character,
int leftPos,
int rightPos)
Convert a character at a specified position to an integer value. |
protected int |
weightedValue(int charValue,
int leftPos,
int rightPos)
Calculates the weighted value of a character in the code at a specified position. |
Methods inherited from class org.apache.bval.extras.constraints.checkdigit.ModulusValidator |
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initialize, isValid, sumDigits |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public SedolValidator()
Method Detail |
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protected int weightedValue(int charValue, int leftPos, int rightPos) throws Exception
Some modulus routines weight the value of a character depending on its position in the code (e.g. ISBN-10), while others use different weighting factors for odd/even positions (e.g. EAN or Luhn). Implement the appropriate mechanism required by overriding this method.
weightedValue
in class ModulusValidator<Sedol>
charValue
- The numeric value of the characterleftPos
- The position of the character in the code, counting from left to rightrightPos
- The position of the character in the code, counting from right to left
Exception
protected int toInt(char character, int leftPos, int rightPos)
Note: this implementation only handlers numeric values For non-numeric characters, override this method to provide character-->integer conversion.
toInt
in class ModulusValidator<Sedol>
character
- The character to convertleftPos
- The position of the character in the code, counting from left to rightrightPos
- The positionof the character in the code, counting from right to left
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