com.sun.labs.minion.query
Class Not

java.lang.Object
  com.sun.labs.minion.query.Element
      com.sun.labs.minion.query.Operator
          com.sun.labs.minion.query.Not

All Implemented Interfaces:

java.lang.Iterable<Element>

public class Not
extends Operator

A boolean not operator. Note that boolean not is a unary operator.

Field Summary

Fields inherited from class com.sun.labs.minion.query.Operator

elements

Fields inherited from class com.sun.labs.minion.query.Element

fields, strict

Constructor Summary

Not()
Creates an empty boolean negation.

Not(Element element)
Creates a boolean negation of the given element.

Method Summary

QueryElement

getQueryElement() Transduces this query element into a "real" query element, one that can be evaluated by the search engine.

Methods inherited from class com.sun.labs.minion.query.Operator

add, getOperands, iterator

Methods inherited from class com.sun.labs.minion.query.Element

addField, getFields, getStrict, setFields, setStrict

Methods inherited from class java.lang.Object

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

Constructor Detail

Not

public Not()

Creates an empty boolean negation. This will return all documents.

Not

public Not(Element element)

Creates a boolean negation of the given element. A document will be in the result set for this operator only if it is not in the result set for the provided element.

A boolean negation is strictly evaluated: a document is either in the result set or it is not. Documents in the result set for this operator will not have scores associated with them.

Parameters:

element -

Method Detail

getQueryElement

public QueryElement getQueryElement()

Description copied from class: Element

Transduces this query element into a "real" query element, one that can be evaluated by the search engine.

Specified by:

getQueryElement in class Element

Returns:

an evaluatable query element.