de.mguennewig.pobjects.metadata
Class ISSNType

java.lang.Object
  de.mguennewig.pobjects.metadata.AbstractType
      de.mguennewig.pobjects.metadata.ScalarType
          de.mguennewig.pobjects.metadata.StringType
              de.mguennewig.pobjects.metadata.ISSNType

All Implemented Interfaces:

Type

public final class ISSNType
extends StringType

International Standard Serial Number or short ISSN.

The format of the ISSN is an eight digit number, divided by a hyphen into two four digit numbers. The last digit, which may be 0-9 or an X, is a check digit.

Author:

Michael Günnewig

Field Summary

static int	ISSN_LENGTH
static java.lang.String	ISSN_PATTERN

Fields inherited from class de.mguennewig.pobjects.metadata.StringType

RESTRICT_TO_ALPHANUM, RESTRICT_TO_ANYTHING, RESTRICT_TO_CHARSET, RESTRICT_TO_NUMERIC, RESTRICT_TO_REGEXP

Fields inherited from interface de.mguennewig.pobjects.metadata.Type

CLASS_NAME, TYPE_NAME

Constructor Summary

ISSNType()
Creates a new ISSN type.

ISSNType(int size)
Creates a new ISSN type.

ISSNType(int size, int restrictTo, java.lang.String pattern, int minLength)
Creates a new ISSN type.

Method Summary

static int	checksum(java.lang.String issn) Computes the ISSN checksum.
void	checkSyntax(java.lang.String value)

Methods inherited from class de.mguennewig.pobjects.metadata.StringType

checkConstraints, getErrorMsgKey, getJavaClass, getMaxFieldSize, getMinimumLength, getPattern, getRestrictTo, getSize, parseNative, setParam

Methods inherited from class de.mguennewig.pobjects.metadata.ScalarType

addMap, expand, getMap, getResult, getResultInc, isScalar, labelToValue, valueToLabel

Methods inherited from class de.mguennewig.pobjects.metadata.AbstractType

format, formatNative, getDescription, getTypeClass, name, parse, setDescription, setTypeClass

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

ISSN_PATTERN

public static final java.lang.String ISSN_PATTERN

See Also:

Constant Field Values

ISSN_LENGTH

public static final int ISSN_LENGTH

See Also:

Constant Field Values

Constructor Detail

ISSNType

public ISSNType()

Creates a new ISSN type.

ISSNType

public ISSNType(int size)

Creates a new ISSN type.

ISSNType

public ISSNType(int size,
                int restrictTo,
                java.lang.String pattern,
                int minLength)

Creates a new ISSN type.

Method Detail

checksum

public static int checksum(java.lang.String issn)

Computes the ISSN checksum.

This works just like the ISBN checksum, with the slight difference that the weights start at 8 and decrease.

checkSyntax

public void checkSyntax(java.lang.String value)
                 throws PObjSyntaxException

Specified by:

checkSyntax in interface Type

Overrides:

checkSyntax in class StringType

Throws:

PObjSyntaxException