com.sun.labs.minion.query
Class And

java.lang.Object
  com.sun.labs.minion.query.Element
      com.sun.labs.minion.query.Operator
          com.sun.labs.minion.query.And

All Implemented Interfaces:

java.lang.Iterable<Element>

public class And
extends Operator

A boolean and 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

And()
Creates an empty and operator.

And(java.util.Collection<Element> elements)
Creates an and operator that will operate on the provided elements.

And(Element... elements)
Creates an and operator that will opearate on the provided elements.

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

And

public And()

Creates an empty and operator. This would evaluate to an empty set of documents.

And

public And(java.util.Collection<Element> elements)

Creates an and operator that will operate on the provided elements.

Parameters:

elements - the elements that should be anded together. A document will appear in the result set for this operator only if it appears in the result sets of all of the provided elements.

And

public And(Element... elements)

Creates an and operator that will opearate on the provided elements.

Parameters:

elements - the elements that should be anded together.

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.