org.egothor.query.runner.enhanced

Class TermRunner

java.lang.Object

org.egothor.core.query.Runner

org.egothor.query.runner.TermRunner

org.egothor.query.runner.enhanced.TermRunner

public class TermRunner
extends TermRunner

The TermRunner object represents a binary form of a query that consists of one term.

Author:

Leo Galambos

Constructor Summary

Constructors

Constructor and Description
TermRunner(int model, double idf, Rider r, String field, Token token, int boost, boolean req, boolean proh) Constructor for the TermRunner object
TermRunner(int model, IListWasher washer, double idf, Rider r, String field, Token token, int boost, boolean req, boolean proh) Constructor for the TermRunner object.

Method Summary

Modifier and Type	Method and Description
int	evaluate(long uid) Return the calculated similarity.

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

getProx, invalidReason, terms

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

run

Methods inherited from class java.lang.Object

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

Constructor Detail

TermRunner

public TermRunner(int model,
                  IListWasher washer,
                  double idf,
                  Rider r,
                  String field,
                  Token token,
                  int boost,
                  boolean req,
                  boolean proh)

Constructor for the TermRunner object. This object is constructed for a rider r, and a term that is in the given field , its token type is name , and its text is text .

Parameters:

model - Description of the Parameter

washer - Description of the Parameter

idf - the inverse document frequency

r - the Rider used by this Runner

field - Description of the Parameter

token - the token describing the search term

boost - Description of the Parameter

req - Description of the Parameter

proh - Description of the Parameter

TermRunner

public TermRunner(int model,
                  double idf,
                  Rider r,
                  String field,
                  Token token,
                  int boost,
                  boolean req,
                  boolean proh)

Constructor for the TermRunner object

Parameters:

model - Description of the Parameter

idf - Description of the Parameter

r - Description of the Parameter

field - Description of the Parameter

token - Description of the Parameter

boost - Description of the Parameter

req - Description of the Parameter

proh - Description of the Parameter

Method Detail

evaluate

public int evaluate(long uid)

Return the calculated similarity. When the current document is not uid , then it returns 0. Otherwise is calculates the similarity as 1+w*idf . More details can be found in the Runner class entry.

Overrides:

evaluate in class TermRunner

Parameters:

uid - the unique ID of the document

Returns:

the similarity