Class AbstractRuleApplier<RW extends MaterializedData & Writable>

java.lang.Object

fr.inria.rules.integraal.forward_chaining.chase.rule_applier.AbstractRuleApplier<RW>

Type Parameters:

RW - the writable materialized data type handled by the rule applier Abstract class

All Implemented Interfaces:

RuleApplier<RW>

Direct Known Subclasses:

BreadthFirstTriggerRuleApplier, MultiThreadRuleApplier, ParallelTriggerRuleApplier

public abstract class AbstractRuleApplier<RW extends MaterializedData & Writable>
extends Object
implements RuleApplier<RW>

Base implementation for rule appliers composed of a transformer, computer, checker, and applier.

Author:

Florent Tornil

Field Summary

Fields

Modifier and Type	Field	Description
protected final TriggerApplier<RW>	applier	How to effectively apply the trigger
protected final TriggerChecker<RW>	checker	How to check the trigger should be applied
protected final TriggerComputer<RW>	computer	How to evaluate the rule's body
protected org.slf4j.Logger	LOG	Logger used by concrete rule appliers.
protected final BodyToQueryTransformer	transformer	Transformation of the rule's body to a query

Constructor Summary

Constructors

Constructor	Description
AbstractRuleApplier(BodyToQueryTransformer transformer, TriggerComputer<RW> computer, TriggerChecker<RW> checker, TriggerApplier<RW> applier)	Constructor

Method Summary

Modifier and Type	Method	Description
String	describe()	Defautl method to describe the rule scheduler
String	describeJSON()	Returns a JSON description of the rule applier.
protected Map<FOQuery<?>, Collection<FORule>>	groupRulesByBodyQuery(Collection<FORule> rules)	Re-groups the rules with the same body
void	init(Chase<RW> c)	Initialize the rule applier for the given chase

Methods inherited from class Object

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

Methods inherited from interface RuleApplier

apply

Field Details

LOG

protected org.slf4j.Logger LOG

Logger used by concrete rule appliers.

transformer

protected final BodyToQueryTransformer transformer

Transformation of the rule's body to a query

computer

protected final TriggerComputer<RW extends MaterializedData & Writable> computer

How to evaluate the rule's body

checker

protected final TriggerChecker<RW extends MaterializedData & Writable> checker

How to check the trigger should be applied

applier

protected final TriggerApplier<RW extends MaterializedData & Writable> applier

How to effectively apply the trigger

Constructor Details

AbstractRuleApplier

public AbstractRuleApplier(BodyToQueryTransformer transformer,
 TriggerComputer<RW> computer,
 TriggerChecker<RW> checker,
 TriggerApplier<RW> applier)

Constructor

Parameters:

transformer - the BodyToQueryTransformer

computer - the TriggerComputer

checker - the TriggerChecker

applier - the TriggerApplier

Method Details

describe

public String describe()

Defautl method to describe the rule scheduler

Specified by:

describe in interface RuleApplier<RW extends MaterializedData & Writable>

Returns:

a textual description of the composed trigger-processing pipeline

describeJSON

public String describeJSON()

Description copied from interface: RuleApplier

Returns a JSON description of the rule applier.

Specified by:

describeJSON in interface RuleApplier<RW extends MaterializedData & Writable>

Returns:

a JSON description of the rule applier

init

public void init(Chase<RW> c)

Description copied from interface: RuleApplier

Initialize the rule applier for the given chase

Specified by:

init in interface RuleApplier<RW extends MaterializedData & Writable>

Parameters:

c - the chase object

groupRulesByBodyQuery

protected Map<FOQuery<?>, Collection<FORule>> groupRulesByBodyQuery(Collection<FORule> rules)

Re-groups the rules with the same body

Parameters:

rules - rules to re-group

Returns:

the map of query to rules