no.sesat.search.query.analyser
Class AnalysisRule

java.lang.Object
  no.sesat.search.query.analyser.AnalysisRule

public final class AnalysisRule
extends Object

The AnalysisRule provides scoring of a query based on a set of Predicate instances.

Version:

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

Nested Class Summary

static interface

AnalysisRule.Context

Constructor Summary

AnalysisRule()

Method Summary

void	addPredicateScore(org.apache.commons.collections.Predicate predicate, int score) Adds a Predicate and an accompanying score.
int	evaluate(Query query, AnalysisRule.Context context) Evaluates this rule.

Methods inherited from class java.lang.Object

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

Constructor Detail

AnalysisRule

public AnalysisRule()

Method Detail

addPredicateScore

public void addPredicateScore(org.apache.commons.collections.Predicate predicate,
                              int score)

Adds a Predicate and an accompanying score. The predicate will at evaluation time be evaluated with a TokenEvaluationEngine as input.

Parameters:

predicate - a predicate to evaluate at evaluation time.

score - the score associated with the predicate.

evaluate

public int evaluate(Query query,
                    AnalysisRule.Context context)

Evaluates this rule. All added predicates are evaluated using engine as input. The score of those predicates that are true are added to the final score (output of this method).

Parameters:

query - the query to apply the rule to.

context -

Returns:

the score of this rule when applied to query.