Package org.jeasy.rules.core

Class DefaultRulesEngine

java.lang.Object

org.jeasy.rules.core.AbstractRulesEngine

org.jeasy.rules.core.DefaultRulesEngine

All Implemented Interfaces:

RulesEngine

public final class DefaultRulesEngine
extends AbstractRulesEngine

Default RulesEngine implementation.

Rules are fired according to their natural order which is priority by default. This implementation iterates over the sorted set of rules, evaluates the condition of each rule and executes its actions if the condition evaluates to true.

Author:

Mahmoud Ben Hassine ([email protected])

Constructor Summary

Constructors

Constructor	Description
DefaultRulesEngine()	Create a new DefaultRulesEngine with default parameters.
DefaultRulesEngine(RulesEngineParameters parameters)	Create a new DefaultRulesEngine.

Method Summary

Modifier and Type	Method	Description
Map<Rule,Boolean>	check(Rules rules, Facts facts)	Check rules without firing them.
void	fire(Rules rules, Facts facts)	Fire all registered rules on given facts.

Methods inherited from class org.jeasy.rules.core.AbstractRulesEngine

getParameters, getRuleListeners, getRulesEngineListeners, registerRuleListener, registerRuleListeners, registerRulesEngineListener, registerRulesEngineListeners

Methods inherited from class java.lang.Object

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

Constructor Details

DefaultRulesEngine

public DefaultRulesEngine()

Create a new DefaultRulesEngine with default parameters.

DefaultRulesEngine

public DefaultRulesEngine(RulesEngineParameters parameters)

Create a new DefaultRulesEngine.

Parameters:

parameters - of the engine

Method Details

fire

public void fire(Rules rules,
 Facts facts)

Description copied from interface: RulesEngine

Fire all registered rules on given facts.

check

public Map<Rule,Boolean> check(Rules rules,
 Facts facts)

Description copied from interface: RulesEngine

Check rules without firing them.

Returns:

a map with the result of evaluation of each rule