org.egothor.parser.filter
Class StopFilter

java.lang.Object
  org.egothor.core.Filter
      org.egothor.parser.filter.StopFilter

All Implemented Interfaces:

Sequence<Token>

public abstract class StopFilter
extends Filter

This abstract class should be extended by any class wishing to ignore certain tokens while processing all tokens.

Author:

Peter Halacsy, Leo Galambos

Field Summary

Fields inherited from class org.egothor.core.Filter

prev

Constructor Summary

StopFilter(Sequence<Token> arg0)
Constructor for the StopFilter object.

Method Summary

abstract boolean	isStoppedToken(Token t) Test whether a token should be processed or ignored.
Token	next() Return the next token.

Methods inherited from class org.egothor.core.Filter

action, getPrevTokenizer, setPrevTokenizer

Methods inherited from class java.lang.Object

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

Constructor Detail

StopFilter

public StopFilter(Sequence<Token> arg0)

Constructor for the StopFilter object. Calling this constructor merely instantiates an object of the superclass.

Parameters:

arg0 - Description of the Parameter

Method Detail

isStoppedToken

public abstract boolean isStoppedToken(Token t)

Test whether a token should be processed or ignored.

Parameters:

t - the Token to check

Returns:

true if valid, false if not

next

public Token next()

Return the next token.

Specified by:

next in interface Sequence<Token>

Overrides:

next in class Filter

Returns:

the next token

See Also:

org.egothor.core.Tokenizer#next()