org.drools.base
Class EvaluatorFactory

java.lang.Object
  org.drools.base.EvaluatorFactory

public class EvaluatorFactory

extends java.lang.Object

This is a factory to generate evaluators for all types and operations that can be used in constraints. Uses the helper classes in the evaluators sub package. eg Person(object opr object) Where valid type's are are defined as contants in Evaluator. Adding support for other types or operators is quite easy, just remmeber to add it to the getEvaluator method(s) below, and also to the unit tests. TODO: Should this be made dynamic, such that users can add their own types, a-la hibernate?

Method Summary

static Evaluator	getEvaluator(int type, int operator)
static Evaluator	getEvaluator(int type, java.lang.String operator)
static EvaluatorFactory	getInstance()

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static EvaluatorFactory getInstance()

getEvaluator

public static Evaluator getEvaluator(int type,
                                     java.lang.String operator)

getEvaluator

public static Evaluator getEvaluator(int type,
                                     int operator)