com.deliveredtechnologies.rulebook.runner

Class RuleAdapter

java.lang.Object

com.deliveredtechnologies.rulebook.StandardDecision

com.deliveredtechnologies.rulebook.runner.RuleAdapter

All Implemented Interfaces:

Decision, Rule

public class RuleAdapter
extends StandardDecision

RuleAdapter accepts a POJO annotated Rule class and adapts it to an actual Rule class.

Constructor Summary

Constructors

Constructor and Description
RuleAdapter(java.lang.Object ruleObj) RuleAdapter accepts a Rule annotated POJO and adapts it to a Rule or Decision.

Method Summary

Modifier and Type	Method and Description
java.lang.Object	getThen() Method getThen() returns the 'then' action to be used; either a Function object or a BiFunction object.
java.util.function.Predicate	getWhen() Method getWhen() gets the Predicate that evaluates the condition of the Rule.
RuleAdapter	given(Fact... facts) The given() method accepts Facts for the StandardDecision.
RuleAdapter	given(FactMap facts) The given() method accepts Facts for the StandardDecision.
RuleAdapter	given(java.util.List list) The given() method accepts Facts for the StandardDecision.

Methods inherited from class com.deliveredtechnologies.rulebook.StandardDecision

create, create, getFactMap, getResult, run, setNextRule, setResult, then, then, when

Methods inherited from class java.lang.Object

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

Constructor Detail

RuleAdapter

public RuleAdapter(java.lang.Object ruleObj)
            throws java.io.InvalidClassException

RuleAdapter accepts a Rule annotated POJO and adapts it to a Rule or Decision.

Parameters:

ruleObj - an annotated POJO to be adapted to a rule

Throws:

java.io.InvalidClassException - if the POJO does not have the @Rule annotation

Method Detail

given

public RuleAdapter given(Fact... facts)

Description copied from class: StandardDecision

The given() method accepts Facts for the StandardDecision.

Specified by:

given in interface Rule

Overrides:

given in class StandardDecision

Parameters:

facts - Facts to be used by the Rule

Returns:

the current object for chaining other methods

given

public RuleAdapter given(java.util.List list)

Description copied from class: StandardDecision

The given() method accepts Facts for the StandardDecision.

Specified by:

given in interface Rule

Overrides:

given in class StandardDecision

Parameters:

list - a List of Facts to be used by the Rule

Returns:

the current object

given

public RuleAdapter given(FactMap facts)

Description copied from class: StandardDecision

The given() method accepts Facts for the StandardDecision.

Specified by:

given in interface Rule

Overrides:

given in class StandardDecision

Parameters:

facts - a FactMap

Returns:

the current object

getWhen

public java.util.function.Predicate getWhen()

Description copied from interface: Rule

Method getWhen() gets the Predicate that evaluates the condition of the Rule.

Specified by:

getWhen in interface Rule

Overrides:

getWhen in class StandardDecision

Returns:

a Predicate object

getThen

public java.lang.Object getThen()

Method getThen() returns the 'then' action to be used; either a Function object or a BiFunction object. If no action was specified then a default Function object that returns RuleState NEXT is used.

Specified by:

getThen in interface Rule

Overrides:

getThen in class StandardDecision

Returns:

either a Function object or a BiFunction object