org.egothor.query.runner.enhanced
Class ProxRunner

java.lang.Object
  org.egothor.core.query.Runner
      org.egothor.query.runner.ProxRunner
          org.egothor.query.runner.enhanced.ProxRunner

public class ProxRunner
extends ProxRunner

The ProxRunner class is used when a user wishes to make a query involving two terms where the 2^nd term must lie within n words of the 1^st . For example, a user might wish to view documents where BASS lies within 2 words of GUITAR. This query would be given in the form:

(BASS 2 GUITAR) (the parentheses are required).

Author:

Leo Galambos

Field Summary

Fields inherited from class org.egothor.query.runner.ProxRunner

a, b, diff, prox_a, prox_b

Constructor Summary

ProxRunner(int model, TermRunner a, TermRunner b, int diff)
Constructor for the ProxRunner object

Method Summary

int	evaluate(long uid) Return the similarity of this object to the document with the given unique ID.

Methods inherited from class org.egothor.query.runner.ProxRunner

invalidReason, terms

Methods inherited from class org.egothor.core.query.Runner

run

Methods inherited from class java.lang.Object

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

Constructor Detail

ProxRunner

public ProxRunner(int model,
                  TermRunner a,
                  TermRunner b,
                  int diff)

Constructor for the ProxRunner object

Parameters:

model - Description of the Parameter

a - the Runner for the first term

b - the Runner for the second term

diff - Description of the Parameter

Method Detail

evaluate

public int evaluate(long uid)

Return the similarity of this object to the document with the given unique ID. When any of formula variables returns non-positive value, then the evaluation is 0.

Overrides:

evaluate in class ProxRunner

Parameters:

uid - the document in question

Returns:

the similarity