no.sesat.search.query.token
Class FastQueryMatchingEvaluatorFactory

java.lang.Object
  no.sesat.search.query.token.AbstractEvaluatorFactory
      no.sesat.search.query.token.FastQueryMatchingEvaluatorFactory

public final class FastQueryMatchingEvaluatorFactory
extends AbstractEvaluatorFactory

Responsible for loading and serving the VeryFast (Fast Query Matching) Token Evaluator. One VeryFastTokenEvaluator is constructed per query and used for all tokens of type FAST.

Version:

$Id: FastQueryMatchingEvaluatorFactory.java 7225 2009-04-09 00:32:20Z ssmiweve $

Nested Class Summary

Nested classes/interfaces inherited from class no.sesat.search.query.token.AbstractEvaluatorFactory

AbstractEvaluatorFactory.Context

Constructor Summary

FastQueryMatchingEvaluatorFactory(AbstractEvaluatorFactory.Context cxt)

Method Summary

TokenEvaluator	getEvaluator(TokenPredicate token) If the evaluator is not found in this site it will fallback and look in the parent site.
boolean	isResponsibleFor(TokenPredicate token) Is the factory responsibe for evaluation of this TokenPredicate.

Methods inherited from class no.sesat.search.query.token.AbstractEvaluatorFactory

getContext, instanceOf

Methods inherited from class java.lang.Object

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

Constructor Detail

FastQueryMatchingEvaluatorFactory

public FastQueryMatchingEvaluatorFactory(AbstractEvaluatorFactory.Context cxt)
                                  throws SiteKeyedFactoryInstantiationException

Throws:

SiteKeyedFactoryInstantiationException

Method Detail

getEvaluator

public TokenEvaluator getEvaluator(TokenPredicate token)
                            throws EvaluationException

Description copied from class: AbstractEvaluatorFactory

If the evaluator is not found in this site it will fallback and look in the parent site.

Specified by:

getEvaluator in class AbstractEvaluatorFactory

Parameters:

token - the predicate the evaluator is to be used for

Returns:

the TokenEvaluator to use. Or TokenEvaluationEngineImpl.ALWAYS_FALSE_EVALUATOR if not found.

Throws:

EvaluationException

isResponsibleFor

public boolean isResponsibleFor(TokenPredicate token)

Description copied from class: AbstractEvaluatorFactory

Is the factory responsibe for evaluation of this TokenPredicate. Default implementation checks that getEvaluator(..) does not return ALWAYS_FALSE_EVALUATOR

Overrides:

isResponsibleFor in class AbstractEvaluatorFactory

Parameters:

token - the TokenPredicate we're checking

Returns:

true if factory is responsible for evaluating the given TokenPredicate.