gate.creole.annic.lucene
Class PatternValidator

java.lang.Object
  gate.creole.annic.lucene.PatternValidator

public class PatternValidator
extends Object

Pattern Validator that given a position of first term, retrieves the entire pattern from the token stream. If it is not able to retrieve the entire pattern, the class reports it as an invalid pattern.

Author:

niraj

Constructor Summary

PatternValidator()

Method Summary

int	getPatternLength() Gets the length of the pattern.
int	validate(List<String> queryTokens, List<Token> annotations, int from, QueryParser queryParser) This method takes two parameters the actual query issued and annotations in which it checks if the annotations exist that are validating for the given query

Methods inherited from class java.lang.Object

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

Constructor Detail

PatternValidator

public PatternValidator()

Method Detail

getPatternLength

public int getPatternLength()

Gets the length of the pattern.

validate

public int validate(List<String> queryTokens,
                    List<Token> annotations,
                    int from,
                    QueryParser queryParser)
             throws SearchException

This method takes two parameters the actual query issued and annotations in which it checks if the annotations exist that are validating for the given query

Returns:

int positive number indicates the offset of the last annotation of the pattern. -1 indicates invalid pattern.

Throws:

SearchException