de.fhg.igd.gps
Class NMEA183Tokenizer

java.lang.Object
  de.fhg.igd.gps.NMEA183Tokenizer

public class NMEA183Tokenizer

extends Object

The NMEA183Tokenizer allows an application to break a string representation of a NMEA183 sentence into tokens.

Author:

Dennis Bartussek

Field Summary

private boolean	checksumfollows_ Flag to indicate whether the next token is a checksum or not.
private StringTokenizer	tokenizer_

Constructor Summary

(package private)

NMEA183Tokenizer(String sentence) Constructs a new NMEA183Tokenizer to parse the specified string representation of a NMEA183Sentence sentence.

Method Summary

boolean	checksumFollows() Tests if the next token from this tokenizer is a checksum.
boolean	hasMoreTokens() Tests if there are more tokens available from this tokenizer's string.
String	nextToken() Returns the next token from this tokenizer.

Methods inherited from class java.lang.Object

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

Field Detail

tokenizer_

private StringTokenizer tokenizer_

checksumfollows_

private boolean checksumfollows_

Flag to indicate whether the next token is a checksum or not.

Constructor Detail

NMEA183Tokenizer

NMEA183Tokenizer(String sentence)

Constructs a new NMEA183Tokenizer to parse the specified string representation of a NMEA183Sentence sentence.

Parameters:

sentence - the string representation of the NMEA183Sentence to parse

Method Detail

checksumFollows

public boolean checksumFollows()

Tests if the next token from this tokenizer is a checksum. If this method returns true a subsequent call to nextToken will return a checksum.

Returns:

true if the next token from this tokenizer is a checksum; false otherwise

hasMoreTokens

public boolean hasMoreTokens()

Tests if there are more tokens available from this tokenizer's string. If this method returns true, then a subsequent call to nextToken will successfully return a token.

Returns:

true if and only if there is at least one token in the string after the current position; false otherwise.

nextToken

public String nextToken()
                 throws NoSuchElementException

Returns the next token from this tokenizer.

Returns:

the next token from this tokenizer

Throws:

NoSuchElementException - if there are no more tokens in this tokenizer's string