alice.tuprolog

Class SolveInfo

java.lang.Object

alice.tuprolog.SolveInfo

All Implemented Interfaces:

Serializable

public class SolveInfo
extends Object
implements Serializable

SolveInfo class represents the result of a solve request made to the engine, providing information about the solution

Author:

Alex Benini

See Also:

Serialized Form

Method Summary

Methods

Modifier and Type	Method and Description
List	getBindingVars() Gets the list of the variables in the solution.
Term	getQuery() Gets the query
Term	getSolution() Gets the solution of the request
Term	getTerm(String varName) Gets the value of a variable in the substitution.
Term	getVarValue(String varName) Gets the value of a variable in the substitution.
boolean	hasOpenAlternatives() Checks if the solve request was halted
boolean	isHalted() Checks if the solve request was halted
boolean	isSuccess() Checks if the solve request was successful
String	toString() Returns the string representation of the result of the demonstration.

Methods inherited from class java.lang.Object

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

Method Detail

isSuccess

public boolean isSuccess()

Checks if the solve request was successful

Returns:

true if the solve was successful

isHalted

public boolean isHalted()

Checks if the solve request was halted

Returns:

true if the solve was successful

hasOpenAlternatives

public boolean hasOpenAlternatives()

Checks if the solve request was halted

Returns:

true if the solve was successful

getQuery

public Term getQuery()

Gets the query

Returns:

the query

getSolution

public Term getSolution()
                 throws NoSolutionException

Gets the solution of the request

Throws:

NoSolutionException - if the solve request has not solution

getBindingVars

public List getBindingVars()
                    throws NoSolutionException

Gets the list of the variables in the solution.

Returns:

the array of variables.

Throws:

NoSolutionException - if current solve information does not concern a successful

getTerm

public Term getTerm(String varName)
             throws NoSolutionException,
                    UnknownVarException

Gets the value of a variable in the substitution.

Throws:

NoSolutionException - if the solve request has no solution

UnknownVarException - if the variable does not appear in the substitution.

getVarValue

public Term getVarValue(String varName)
                 throws NoSolutionException

Gets the value of a variable in the substitution. Returns null if the variable does not appear in the substitution.

Throws:

NoSolutionException

toString

public String toString()

Returns the string representation of the result of the demonstration. For successful demonstration, the representation concerns variables with bindings. For failed demo, the method returns false string.

Overrides:

toString in class Object