Package org.opennars.control.concept

Class ProcessGoal

java.lang.Object

org.opennars.control.concept.ProcessGoal

public class ProcessGoal
extends Object

Author:

Patrick Hammer

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	ProcessGoal.ExecutablePrecondition

Constructor Summary

Constructors

Constructor	Description
ProcessGoal()

Method Summary

Modifier and Type	Method	Description
static void	bestReactionForGoal(Concept concept, DerivationContext nal, Sentence projectedGoal, Task task)	When a goal is processed, use the best memorized reaction that is applicable to the current context (recent events) in case that it exists.
private static ProcessGoal.ExecutablePrecondition	calcBestExecutablePrecondition(DerivationContext nal, Concept concept, Sentence projectedGoal, List<Task> execPreconditions, Map<Operation,List<ProcessGoal.ExecutablePrecondition>> anticipationsToMake)	Search for the best precondition that best matches recent events, and is most successful in leading to goal fulfilment
static boolean	executeOperation(DerivationContext nal, Task t)	Entry point for all potentially executable operation tasks.
private static boolean	executePrecondition(DerivationContext nal, ProcessGoal.ExecutablePrecondition precon, Concept concept, Sentence projectedGoal, Task task)	Execute the operation suggested by the most applicable precondition
protected static void	processGoal(Concept concept, DerivationContext nal, Task task)	To accept a new goal, and check for revisions and realization, then decide whether to actively pursue it, potentially executing in case of an operation goal
protected static void	processOperationGoal(Sentence projectedGoal, DerivationContext nal, Concept concept, Task oldGoalT, Task task)	To process an operation for potential execution only called by processGoal
static void	questionFromGoal(Task task, DerivationContext nal)	Generate <?how =/> g>? question for g! goal.

Methods inherited from class java.lang.Object

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

Constructor Detail

ProcessGoal

public ProcessGoal()

Method Detail

processGoal

protected static void processGoal(Concept concept,
                                  DerivationContext nal,
                                  Task task)

To accept a new goal, and check for revisions and realization, then decide whether to actively pursue it, potentially executing in case of an operation goal

Parameters:

concept - The concept of the goal

nal - The derivation context

task - The goal task to be processed

processOperationGoal

protected static void processOperationGoal(Sentence projectedGoal,
                                           DerivationContext nal,
                                           Concept concept,
                                           Task oldGoalT,
                                           Task task)

To process an operation for potential execution only called by processGoal

Parameters:

projectedGoal - The current goal

nal - The derivation context

concept - The concept of the current goal

oldGoalT - The best goal in the goal table

task - The goal task

questionFromGoal

public static void questionFromGoal(Task task,
                                    DerivationContext nal)

Generate <?how =/> g>? question for g! goal. only called by processGoal

Parameters:

task - the task for which the question should be processed

nal - The derivation context

bestReactionForGoal

public static void bestReactionForGoal(Concept concept,
                                       DerivationContext nal,
                                       Sentence projectedGoal,
                                       Task task)

When a goal is processed, use the best memorized reaction that is applicable to the current context (recent events) in case that it exists. This is a special case of the choice rule and allows certain behaviors to be automated.

Parameters:

concept - The concept of the goal to realize

nal - The derivation context

projectedGoal - The current goal

task - The goal task

calcBestExecutablePrecondition

private static ProcessGoal.ExecutablePrecondition calcBestExecutablePrecondition(DerivationContext nal,
                                                                                 Concept concept,
                                                                                 Sentence projectedGoal,
                                                                                 List<Task> execPreconditions,
                                                                                 Map<Operation,List<ProcessGoal.ExecutablePrecondition>> anticipationsToMake)

Search for the best precondition that best matches recent events, and is most successful in leading to goal fulfilment

Parameters:

nal - The derivation context

concept - The goal concept

projectedGoal - The goal projected to the current time

execPreconditions - The procedural hypotheses with the executable preconditions

Returns:

The procedural hypothesis with the highest result truth expectation

executePrecondition

private static boolean executePrecondition(DerivationContext nal,
                                           ProcessGoal.ExecutablePrecondition precon,
                                           Concept concept,
                                           Sentence projectedGoal,
                                           Task task)

Execute the operation suggested by the most applicable precondition

Parameters:

nal - The derivation context

precon - The procedural hypothesis leading to goal

concept - The concept of the goal

projectedGoal - The goal projected to the current time

task - The goal task

executeOperation

public static boolean executeOperation(DerivationContext nal,
                                       Task t)

Entry point for all potentially executable operation tasks. Returns true if the Task has a Term which can be executed

Parameters:

nal - The derivation concept

t - The operation goal task