com.declarativa.interprolog.util

Class ResultFromProlog

java.lang.Object

com.declarativa.interprolog.util.ResultFromProlog

All Implemented Interfaces:

Serializable

public class ResultFromProlog
extends Object
implements Serializable

Used to serialize results for deterministicGoal

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
Object	error Error message, null if none; used to be a String, now can be anything to cater for Prolog exceptions
Object[]	rVars Object array corresponding to the result variable list
boolean	succeeded Goal has succeeded
int	timestamp Same as passed in GoalFromJava
boolean	undefined true if the result is logically undefined (third value)

Constructor Summary

Constructors

Constructor and Description
ResultFromProlog(int timestamp, boolean succeeded, int size, Object error, boolean undefined)

Method Summary

Modifier and Type	Method and Description
String	toString()
boolean	wasInterrupted(AbstractPrologEngine engine) Prolog complaining about being interrupted.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

timestamp

public int timestamp

Same as passed in GoalFromJava

succeeded

public boolean succeeded

Goal has succeeded

rVars

public Object[] rVars

Object array corresponding to the result variable list

undefined

public boolean undefined

true if the result is logically undefined (third value)

error

public Object error

Error message, null if none; used to be a String, now can be anything to cater for Prolog exceptions

Constructor Detail

ResultFromProlog

public ResultFromProlog(int timestamp,
                        boolean succeeded,
                        int size,
                        Object error,
                        boolean undefined)

Method Detail

toString

public String toString()

Overrides:

toString in class Object

wasInterrupted

public boolean wasInterrupted(AbstractPrologEngine engine)

Prolog complaining about being interrupted. The engine parameter is necessary as the interrupt detection may depend on Prolog implementation or version