com.objsys.asn1j.runtime
Class Asn1CharRange

java.lang.Object
  com.objsys.asn1j.runtime.Asn1CharSet
      com.objsys.asn1j.runtime.Asn1CharRange

public class Asn1CharRange
extends Asn1CharSet

This class is used to represent a permitted alphabet that is specified as a large, continuous range of characters. An example of this can be found in the following extract from T.124:

simpleTextFirstCharacter UniversalString ::= {0, 0, 0, 0}

simpleTextLastCharacter UniversalString ::= {0, 0, 0, 255}

SimpleTextString ::= BMPString (SIZE (0..255)) (FROM (simpleTextFirstCharacter..simpleTextLastCharacter))

This class is mainly for internal use by the compiler when generating methods that encode/decode PER charater string components containing permitted alphabet constraints.

Field Summary

protected int	mLower This variable represents the lower value of the range.
protected int	mUpper This variable represents the upper value of the range.

Fields inherited from class com.objsys.asn1j.runtime.Asn1CharSet

mABitsPerChar, mUBitsPerChar

Constructor Summary

Asn1CharRange(int lower, int upper)
This constructor sets the range values.

Method Summary

int	getCharAtIndex(int index) This method will fetch the character from the permitted alphabet at the given index.
int	getCharIndex(int charValue) This method will determine the index of the given character within the permitted alphabet character set.
int	getMaxValue() This method will determine the maximum value of the given character within the permitted alphabet character set.
boolean	validate(java.lang.String s) This method will validate a character string by comparing its contents to the character range.

Methods inherited from class com.objsys.asn1j.runtime.Asn1CharSet

getNumBitsPerChar

Methods inherited from class java.lang.Object

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

Field Detail

mLower

protected int mLower

This variable represents the lower value of the range.

mUpper

protected int mUpper

This variable represents the upper value of the range.

Constructor Detail

Asn1CharRange

public Asn1CharRange(int lower,
                     int upper)

This constructor sets the range values.

Parameters:

lower - Range lower value

upper - Range upper value

Method Detail

getCharAtIndex

public int getCharAtIndex(int index)
                   throws Asn1ConsVioException

This method will fetch the character from the permitted alphabet at the given index.

Specified by:

getCharAtIndex in class Asn1CharSet

Parameters:

index - Index of character within the character set

Returns:

Character at given index

Throws:

Asn1ConsVioException - Index not within define range

getCharIndex

public int getCharIndex(int charValue)
                 throws Asn1ConsVioException

This method will determine the index of the given character within the permitted alphabet character set.

Specified by:

getCharIndex in class Asn1CharSet

Parameters:

charValue - Character value to search for

Returns:

Index of character

Throws:

Asn1ConsVioException - Character not found in set

getMaxValue

public int getMaxValue()

This method will determine the maximum value of the given character within the permitted alphabet character set.

Specified by:

getMaxValue in class Asn1CharSet

Returns:

Upper Bound Character or Character with max int value

validate

public boolean validate(java.lang.String s)

This method will validate a character string by comparing its contents to the character range. Each character in the string is checked against the range. If it exceeds the upper or lower limit of the range, false is returned. Otherwise true is returned.

Specified by:

validate in class Asn1CharSet

Parameters:

s - The string to be validated.

Returns:

False if the string contains invalid characters; true otherwise.