com.sun.labs.minion.retrieval
Class If

java.lang.Object
  com.sun.labs.minion.retrieval.QueryElement
      com.sun.labs.minion.retrieval.Operator
          com.sun.labs.minion.retrieval.UnaryOperator
              com.sun.labs.minion.retrieval.If

All Implemented Interfaces:

java.lang.Comparable

public class If
extends UnaryOperator

A class implementing the if query operator. This operator takes a single argument and returns a strict boolean results set.

Field Summary

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

log, logTag, operands

Fields inherited from class com.sun.labs.minion.retrieval.QueryElement

estSize, fieldMultipliers, inOrder, keepPositions, order, part, qc, searchFieldNames, searchFields, strictEval, wc, wf

Constructor Summary

If(QueryElement operand)
Constructs an if operator that will use the given operand .

Method Summary

ArrayGroup

eval(ArrayGroup ag) Evaluates this operator, returning the results.

Methods inherited from class com.sun.labs.minion.retrieval.UnaryOperator

calculateEstimatedSize

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

addSearchFieldName, getOperands, getQueryTerms, setOperands, setPartition, setQueryConfig, setWeightingComponents, setWeightingFunction, toString, toString, toStringMod

Methods inherited from class com.sun.labs.minion.retrieval.QueryElement

compareTo, dump, estimateSize, getInOrder, getOrder, getQueryTerms, getSearchFieldNames, setInOrder, setOrder

Methods inherited from class java.lang.Object

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

Constructor Detail

If

public If(QueryElement operand)

Constructs an if operator that will use the given operand .

Method Detail

eval

public ArrayGroup eval(ArrayGroup ag)

Evaluates this operator, returning the results.

Overrides:

eval in class QueryElement